• Akihiko Chiba, Yufan Zhao, Kenta Aoyagi, Kenta Yamanaka, "Optimal Alloy Powder Characteristics for Electron Beam Additive Manufacturing", ICMaSS2021: International Conference on Materials and Systems for Sustainability, Online, 2021.11.5. [Invited]

• Akihiko Chiba, "Significant alloy powder characteristics for powder-bed fusion type electron beam additive manufacturing", 2021 JAPAN-TAIWAN Advanced Materials and Semiconductor Technology Workshop, Online, 2021.10.28. [Invited]

• Kenta Yamanaka, Manami Mori, Kazuo Yoshida, Akihiko Chiba, "Surface Evolution and Corrosion Behavior of Cu-doped Carbide-reinforced Martensitic Steels in a Sulfuric Acid", MS&T21: Materials Science and Technology 2021, Online, 2021.10.22.

• K.S.N. Sesha, Kenta Yamanaka, Kenta Aoyagi, Akihiko Chiba, "Influence of Thermal Treatments on the Microstructure and Mechanical Properties of Ti-6Al-4V Built by Electron Beam Melting (EBM)", MS&T21: Materials Science and Technology 2021, Online, 2021.10.22.

• Haruka Shima, Manami Mori, Kenta Yamanaka, Kazuo Yoshida, Akihiko Chiba, "Enhancing the Hardness and Corrosion Resistance of Ni-based Alloys with Thermomechanical Processing", MS&T21: Materials Science and Technology 2021, Online, 2021.10.22.

• Yusaku Hasebe, Takehito Hagisawa, Satoru Ohsaki, Kazuya Kubo, Cheng Yang, Kenta Aoyagi, Kenta Yamanaka, Akihiko Chiba, "Hot Deformation Microstructure and Processing Map of Cast Ni- based Superalloy IN-100", MS&T21: Materials Science and Technology 2021, Online, 2021.10.22.

• Kenta Yamanaka, Hiroshi Shiratori, Manami Mori, Kazuyo Omura, Tadashi Fujieda, Kosuke Kuwabara, Akihiko Chiba, "Understanding the corrosion mechanism of an equimolar AlCoCrFeNi high-entropy alloy additively manufactured by electron beam melting", TMS2021 Virtual, Online, 2021.3.17.

• Kenta Yamanaka, Manami Mori, Kazuo Yoshida, Kazuyo Omura, Yusuke Onuki, Shigeo Sato, Akihiko Chiba, "Dealloying and passivation of Cu-doped carbide-reinforced martensitic steels in a sulfuric acid", TMS2021 Virtual, Online, 2021.3.15.

• Shogo Oda, Shun-ichiro Tanaka, "Depth Profile of Residual Stresses to Analyze Textures in Extruded A6XXX", ICOTOM19, Online, 2021.3.3.

• Kenta Yamanaka, Manami Mori, Hiroaki Matsumoto, Shigeo Sato, Akihiko Chiba, "Microstructural and texture characterization of additively manufactured commercially pure titanium", ICOTOM19, Online, 2021.3.1.

• Kenta Yamanaka, Manami Mori, Yusuke Onuki, Shigeo Sato, Akihiko Chiba, "Effect of interstitial nitrogen on the phase stability, strengthening, mechanical behavior in TRIP-assisted high-entropy alloys", MS&T 2020, Online, 2020.11.4.

• Yufan Zhao, Kenta Aoyagi, Yohei Daino, Kenta Yamakana, Akihiko Chiba, "A Comparative Study Between Gas-atomized and Plasma Rotating Electrode Processed Powders on Forming Quality of IN718 in Electron Beam Powder-bed Fusion", EBAM2020, Online, 2020.10.7. [Poster]

• Kenta Aoyagi, Hirofumi Watanabe, Yoshitaka Shibuya, Kenji Sato, Akihiko Chiba, "Effect of surface coating for pure-Cu powders on electron beam melting process", EBAM2020, Online, 2020.10.6.

• Akihiko Chiba, Kenta Aoyagi, Takahiro Kudo, Yohei Daino, Yufan Zhao, Kenta Yamanaka, "Avoiding “smoke” with a ball milling in air for alloy powder in powder bed fusion type electron beam additive manufacturing", EBAM2020, Online, 2020.10.6.

• Huakang Bian, Aoyagi Kenta, Yufan Zhao, Chikatoshi Maeda, Toshihiro Mouri, Akihiko Chiba, "Microstructure refinement for superior ductility of Al–Si alloy by electron beam melting", EBAM2020, Online, 2020.10.5.

• Y. Lei , K. Aoyagi1, D.-S. Kang, K. Kuwabara, K. Aota, A. Chiba, "Eliminating Micro-cracking in Inconel 713ELC Fabricated by a Powder-bed-fusion Additive Manufacturing with Electron Beam", TMS2020, San Diego, USA, 2020.2.26.

• K. Yamanaka, M. Mori, Y. Onuki, S. Sato, A. Chiba, "Strengthening of Transformation-induced Plasticity-assisted High Entropy Alloy via Interstitial Nitrogen", TMS2020, San Diego, USA, 2020.2.25. [Poster]

• W. Heng, D. Wei, H. Kato, A. Chiba, "The Development of High Performance Hybrid High Entropy Alloys (HEAs)", TMS2020, San Diego, USA, 2020.2.25. [Poster]

• K. Aoyagi, T. Kii, N. Sasaki, H. Watanabe, Y. Shibuya, K. Sato, A. Chiba, "Machine Learning Approach for Process Optimization of Pure Cu in a Powder Bed Fusion Additive Manufacturing with Electron Beam", TMS2020, San Diego, USA, 2020.2.25. [Poster]

• K. Yamanaka, M. Mori, Y. Onuki, S. Sato, A. Chiba, "Effect of Partitioning Treatment on the Mechanical Behavior of an Additively Manufactured Ti-6Al-4V Alloy", TMS2020, San Diego, USA, 2020.2.24. [Poster]

• M. Laurençon, A. Chiba, D. Fabrègue, "Evolution of microstructure and mechanical properties with thermomechanical treatments of new Ti-Mo-Zr-Sn beta titanium alloys for biomedical applications", LyonSE&N – ELyT – IARI Workshop 2020, Vogüé, France, 2020.2.18.

• H. Numata, J. Adrien, K. Yamanaka, E. Maire, A. Chiba, D. Fabrègue, "In situ tensile test of Ti-6Al-4V alloys produced by electron beam additive manufacturing with different powders", LyonSE&N – ELyT – IARI Workshop 2020, Vogüé, France, 2020.2.18.

• K. Yamanaka, A. Chiba, D. Hartmann, D. Fabrègue, "Preparation of high-strength Co−Cr−Mo alloy rods via multi-pass hot-caliber rolling", LyonSE&N – ELyT – IARI Workshop 2020, Vogüé, France, 2020.2.17.

• Akihiko Chiba, "Metal 3D Printer for Space Technology", Joint workshop by three programs, Global Institute for Materials Research, Tohoku (GIMRT), “Kibo” Users’ Network of JAXA (ISS-“Kibo”) and Aerospace Interdisciplinary Research Center of Tohoku University (AIRC), Sendai, Japan, 2019.11.29. [Invited]

• L. Ouyang, H. Bian, Y. Cui, K. Yamanaka, A. Chiba, "Microstructure prediction and evolution of a novel high entropy superalloy (HESA) at elevated temperature", Summit of Materials Science (SMS) 2019, Sendai, Japan, 2019.11.27. [Poster]

• J. Li, K. Yamanaka, K. Aoyagi, H. Bian, A. Chiba, "Newly developed CoCrFeNiMox high-entropy alloys aided by CALPHAD methods", Summit of Materials Science (SMS) 2019, Sendai, Japan, 2019.11.27. [Poster]

• H. Bian, Y. Cui, K. Yamanaka, A. Chiba, "The influence of Mo on Suzuki-segregation-related microstructure evolution and mechanical properties of Co−Ni-based superalloy", Summit of Materials Science (SMS) 2019, Sendai, Japan, 2019.11.27. [Poster]

• Seungkyun Yim, Huakang Bian, Akihiko Chiba, "Refining the microstructure of Ti–48Al–2Cr–2Nb alloy using cyclic heat treatment", Summit of Materials Science (SMS) 2019, Sendai, Japan, 2019.11.27. [Poster]

• C. Yang, K. Aoyagi, H. Bian, A. Chiba, "Microstructure and strengthening mechanisms of a novel refractory high- entropy alloy HfMoNbTaTi", Summit of Materials Science (SMS) 2019, Sendai, Japan, 2019.11.27. [Poster]

• Yujie Cui , Huakang Bian, Kenta Aoyagi, Akihiko Chiba"Impacts of pre-strain on twin boundary mobility of magnesium", Summit of Materials Science (SMS) 2019, Sendai, Japan, 2019.11.27. [Poster]

• Jiayu Sun, Kenta Yamanaka, Akihiko Chiba, Hiroaki Ebihara, Kazuhiro Ogawa, "Analysis of the erosion behavior of titanium onto CFRP by cold spray", Summit of Materials Science (SMS) 2019, Sendai, Japan, 2019.11.27. [Poster]

• Yuchao Lei, Kenta Aoyagi, Dong-Soo Kang, Kosuke Kuwabara, Kinya Aota, Akihiko Chiba, "Optimization and verification of electron beam melting process of non-weldable superalloy Inconel 713ELC23", NIMS WEEK 2019, Tokyo, Japan, 2019.10.30. [Poster]

• Yujie Cui, Haruko Numata, Kimio Wako, Huakang Bian, Kenta Yamanaka, Akihiko Chiba, "Influences of plasma rotating electrode process parameters on the particle size distribution and microstructure of Ti-6Al-4V powder", NIMS WEEK 2019, Tokyo, Japan, 2019.10.30. [Poster]

• Yufan Zhao, Yuichiro Koizumi, Kenta Aoyagi, Kenta Yamanaka, Akihiko Chiba, "Influence Factors on Grain Morphology in a CoCrMo Alloy Fabricated by Electron Beam Powder-bed Additive Manufacturing", NIMS WEEK 2019, Tokyo, Japan, 2019.10.30. [Poster]

• Akihiko Chiba, "Behavior of metal powder by electron beam irradiation in electron beam additive manufacturing", Sendai Albi Knowledge in Engineering Seminars (SAKES), Albi, France, 2019.10.25. [Invited]

• Kenta Yamanaka, "Deformation behavior of Ti-6Al-4V alloys additively manufactured with electron beam melting", Sendai Albi Knowledge in Engineering Seminars (SAKES), Albi, France, 2019.10.25. [Invited]

• A. Chiba, K. Aoyagi, K. Yamanaka, Q. Li, Y. Zhao, "Effects of powder characteristics on parts quality fabricated by using PBF type electron beam additive manufacturing - How does EBM differ from SLM?", ICAMTMI 2019 International Conference on Advanced Manufacturing Technology in Metal Industries, Kaohsiung, Taiwan, 2019.10.7. [Invited]

• Jiaxiang Li, Kenta Yamanaka, Akihiko Chiba, "An abnormal increase in mechanical strengths at 45 and 55 mass% Ni of multicomponent Co-Ni-Cr-Mo alloys", The 4th International Symposium on Creation of Life Innovation Materials for Interdisciplinary and International Researcher Development (iLIM-4), Sendai, Japan, 2019.10.4. [Poster]

• Yufan Zhao, Yuichiro Koizumi, Kenta Aoyagi, Kenta Yamanaka, Akihiko Chiba, "Evolution of Isothermal γ → ε Phase Transformation in a Biomedical Co-Cr-Mo Alloy Depending on Thermal History during Electron Beam Powder-bed Fusion", The 4th International Symposium on Creation of Life Innovation Materials for Interdisciplinary and International Researcher Development (iLIM-4), Sendai, Japan, 2019.10.4. [Poster]

• Yufan Zhao, Yuichiro Koizumi, Kenta Aoyagi, Kenta Yamanaka, Akihiko Chiba, " Mechanism and Control of Grain Morphology and Texture in a Co-Cr-Mo Alloy Fabricated by Electron Beam Additive Manufacturing", The 10th Pacific Rim International Conference on Advanced Materials and Processing (PRICM10), Xian, China, 2019.8.22.

• Akihiko Chiba, "Effects of powder quality on fatigue strength of Ti-6Al-4V alloy fabricated by electron beam additive manufacturing", The 10th Pacific Rim International Conference on Advanced Materials and Processing (PRICM10), Xian, China, 2019.8.20. [Keynote]

• Kenta Yamanaka, Hiroshi Shiratori, Tadashi Fujieda, Kosuke Kuwabara, Akihiko Chiba, "Additive manufacturing of an equiatomic AlCoCrFeNi high-entropy alloy with electron beam melting", The 10th Pacific Rim International Conference on Advanced Materials and Processing (PRICM10), Xian, China, 2019.8.20. [Invited]

• Kenta Yamanaka, Asumi Kuroda, Miyu Itoh, Manami Mori, Takahisa Shobu, Shigeo Sato, Akihiko Chiba, "In situ synchrotron X-ray diffraction line-profile analysis of additively manufactured Ti−6Al−4V alloy under tensile deformation", The 14th World Conference on Titanium (Ti-2019), Nantes, France, 2019.6.13.

• Kenta Yamanaka, Manami Mori, Hiroaki Matsumoto, Akihiko Chiba, "Phase transformation and evolution of dislocation structure in the β phase of Ti-17 alloy during hot deformation", The 14th World Conference on Titanium (Ti-2019), Nantes, France, 2019.6.11.

• Yujie Cui, Yunping Li, Yuichiro Koizumi, Akihiko Chiba, "Tailoring Twin Boundary Mobility in Magnesium and its Alloys", TMS2019, San Antonio, USA, 2019.3.11. [Poster]

• Chen Zhang, Huakang Bian, Kenta Yamanaka, Akihiko Chiba, "An approach to improve the corrosion resistance of FeCrWC alloy in sulfuric acid with trace Cu modification", Summit of Materials Science 2018: SMS2018, Sendai, Japan, 2018.10.30. [Poster]

• Huakang Bian, Kenta Yamanaka, Akihiko Chiba, "Regulating the coarsening of the γ' phase in a novel high entropy superalloy", Summit of Materials Science 2018: SMS2018, Sendai, Japan, 2018.10.30. [Poster]

• Cheng Yang, Huakang Bian, Kenta Aoyagi, Akihiko Chiba, "Study on Mechanical Properties and Microstructure of Several Refractory High-Entropy Alloys", Summit of Materials Science 2018: SMS2018, Sendai, Japan, 2018.10.30. [Poster]

• Yujie Cui, Yuichiro Koizumi, Yunping Li, Akihiko Chiba, "Regulating twin boundary mobility in magnesium and its alloys", Summit of Materials Science 2018: SMS2018, Sendai, Japan, 2018.10.30. [Poster]

• Yuli Setiyorini, S. Pintowantoro, B.A. Kurniawan, N. Widiastuti, Daixu Wei, Kenta Yamanaka, Yuichiro Koizumi, Akihiko Chiba, "Measurement of Toxicity CoCrMo Alloys from EBM fabricated in Inflammation Artificial Blood Plasma", Summit of Materials Science 2018: SMS2018, Sendai, Japan, 2018.10.30. [Poster]

• Kenta Yamanaka, Manami Mori, Shigeo Sato, Takahisa Shobu, Akihiko Chiba, "Tensile deformation behavior of additively manufactured Ti-6Al-4V alloy studied by in-situ synchrotron X-ray diffraction", Summit of Materials Science 2018: SMS2018, Sendai, Japan, 2018.10.30. [Poster]

• Akihiko Chiba, Kenta Yamanaka, Kenta Aoyagi, Hao Wang, "Recent Research Activities in Deformation Processing", Summit of Materials Science 2018: SMS2018, Sendai, Japan, 2018.10.30.

• Kenta Yamanaka, Asumi Kuroda, Miyu Itoh, Manami Mori, Takahisa Shobu, Shigeo Sato, Akihiko Chiba, "In-situ Synchrotron X-ray Diffraction Line-profile Analysis during Tensile Deformation in Additively Manufactured Ti-6Al-4V Alloy", MS&T 2018, Greater Columbus Convention Center, Columbus, Ohio, USA, 2018.10.17.

• Manami Mori, Nanae Sato, Kenta Yamanaka, Kazuo Yoshida, Koji Kuramoto, Akihiko Chiba, "Effects of Cold Swaging and Annealing on the Microstructures and Mechanical Properties of Biomedical Co-Cr-Mo Alloy Rods", MS&T 2018, Greater Columbus Convention Center, Columbus, Ohio, USA, 2018.10.16. [Poster]

• Chen Zhang, Huakang Bian, Kenta Yamanaka, Akihiko Chiba, "High corrosion resistant FeCrWC alloy in sulfuric acid with Cu modification", The 3rd International Symposium on Creation of Life Innovation Materials for Interdisciplinary and International Researcher Development (iLIM-3), Tokyo Garden Palace, Tokyo, Japan, 2018.9.25. [Poster]

• Kenta Yamanaka, Manami Mori, Kazuo Yoshida, Damien Fabrégue, Sandra Balvay, Daniel Hartmann, Akihiko Chiba, "Mechanical properties and cytotoxicity of biomedical Co-Cr-Mo alloy rods prepared by hot caliber rolling", The 3rd International Symposium on Creation of Life Innovation Materials for Interdisciplinary and International Researcher Development (iLIM-3), Tokyo Garden Palace, Tokyo, Japan, 2018.9.25. [Poster]

• Cheng Yang, Kenta Aoyagi, Akihiko Chiba, "Study on Mechanical Properties and Microstructure of Refractory High-Entropy Alloys", The 3rd International Symposium on Creation of Life Innovation Materials for Interdisciplinary and International Researcher Development (iLIM-3), Tokyo Garden Palace, Tokyo, Japan, 2018.9.25. [Poster]

• Hao Wang, Toshimi Miyagi (M2), Kenta Aoyagi, Kenta Yamanaka, Akihiko Chiba, Hideki Sudo (Hokkaido Univ.), "Microstructure refinement due to reverse transformation heat treatment for Bio-medical Co-Cr-Mo alloy fabricated by additive manufacturing with electron beam melting", 13th International Workshop on Biomaterials in Interface Science, Akiu, Sendai, Japan, 2018.8.3.

• Kenta Yamanaka, Manami Mori (National Institute of Technology, Sendai College), Shigeo Sato (Ibaraki Univ.), Akihiko Chiba, "Microstructure evolution of commercially pure titanium during electron beam additive manufacturing", THERMEC' 2018, Cité des Sciences et de l’industrie, Paris, France, 2018.8.13. [Invited]

• Akihiko Chiba, Yuichiro Koizumi, Kenta Aoyagi, Kenta Yamanaka, "Exploration of Preheating Temperature Control Techniques for Simultaneously Removing Residual Stresses and “Smoke” in Additive Manufacturing with Electron Beam Melting (EBM)", EBAM 2018, Nürnberger Akademie, Nuremberg, Germany, 2018.4.12. [Keynote]

• Kenta Aoyagi, Hao Wang, Akihiko Chiba, Hideki Sudo (Hokkaido Univ.), "Development of Informatics Approach to Determine the Process Window for Electron Beam Melting Process: Demonstration in CoCrMo alloy", EBAM 2018, Nürnberger Akademie, Nuremberg, Germany, 2018.4.11. [Poster]

• Tack Lee (D2), "Microstructure evolution of 9-12Cr heat resistant steels fabricated by electron beam melting", 2018 Annual Meeting of Excellent Graduate Schools for Materials Integration Center and Materials Science Center in conjunction with 2018 Russia-Japan Conference "Advanced Materials: Synthesis, Processing and Properties of Nanostructures", Akiu, Sendai, Japan, 2018.3.22.

• Tadashi Fujieda (Hitachi), Yujie Cui, Kenta Aoyagi, Yuichiro Koizumi, Akihiko Chiba, "Heat Resistant Ti Based Alloy with Dispersed TiB Particles Utilizing Additive Manufacturing by Selective Electron Beam Melting", TMS2018, Phoenix, Arizona, USA, 2018.3.15. [Invited]

• Tadashi Fujieda (Hitachi), Meichuan Chen (Hitachi), Hiroshi Shiratori (Hitachi), Kosuke Kuwabara (Hitachi), Kenta Yamanaka, Yuichiro Koizumi, Akihiko Chiba, Seiichi Watanabe (Hokkaido Univ.), "Mechanical and Corrosion Properties of CoCrFeNiTi-based High-entropy Alloy Additive Manufactured Using Selective Laser Beam Melting", TMS2018, Phoenix, Arizona, USA, 2018.3.15. [Invited]

• Kenta Yamanaka, Manami Mori (Natinoal Institute of Technology, Sendai College), Yusuke Onuki (Ibaraki Univ.), Shigeo Sato (Ibaraki Univ.), Akihiko Chiba, "Revealing Martensite Decomposition in Ti-6Al-4V Alloys Additively Manufactured with Electron Beam Melting by X-ray and Neutron Diffraction", TMS2018, Phoenix, Arizona, USA, 2018.3.14.

• Kenta Yamanaka, Manami Mori (Natinoal Institute of Technology, Sendai College), Kazuo Yoshida, Shigeo Sato (Ibaraki Univ.), Akihiko Chiba, "Evolution of Stacking Faults during Thermomechanical Processing of Biomedical Co–Cr–Mo Alloys Studied by X-ray Diffraction Line-profile Analysis", TMS2018, Phoenix, Arizona, USA, 2018.3.13.

• A. Chiba, "Effect of Post-processing on Fatigue Strength of Ti-6Al-4V Alloy Fabricated by Electron Additive Manufacturing", ICMSE-RAC 2018, Egypt-Japan University of Science and Technology, New Borg El-Arab, Alexandria, Egypt, 2018.3.11. [Invited]

• A. Chiba, D. Fabrègue, "Influence of the composition on properties of Co based alloys", ElyT Workshop 2018, Satillieu, Ardèche, France, 2018.3.7.

• Akihiko Chiba, "3D Printing Technology and Medical Applications in Japan", Forum on Novel 3D Printing Technologies in Customized Medical Devices, Taiwan, 2017.12.11. [Invited]

• Akihiko Chiba, Yuichiro Koizumi, Kenta Yamanaka, Kenta Aoyagi, Hao Wang, "Effects of post-processing on tensile and fatigue properties of biomedical Co-28Cr-6Mo and Ti-6Al-4V alloys fabricated by electron beam additive manufacturing", JSPM International Conference on Powder and Powder Metallurgy (JSPMIC2017), Kyoto University, Kyoto, Japan, 2017.11.8. [Invited]

• Akihiko Chiba, "Effects of post-processing　on　fatigue　strength　of　Ti-6AI-4V　alloy　fabricated　by　electron　beam　additive　manufacturing", The 3rd International Conference On Materials and Metallurgical Engineering and Technology (ICOMMET) 2017, Surabaya, Indonesia, 2017.10.30-31. [Keynote]

• Akihiko Chiba, "Process optimization for additively manufactured industrial and biomedical metal parts by using electron beam melting", International Seminar on Metallurgy and Materials (ISMM 2017), Djakarta, Indonesia, 2017.10.24-25. [Invited]

• Kenta Yamanaka, Manami Mori, Shigeo Sato, Akihiko Chiba, "Contribution of stacking faults on strengthening of biomedical Co-Cr-Mo alloys studied by X-ray diffraction line-profile analysis", Materials Science and Technology 2017 (MS&T17), Pittsburgh, Pennsylvania, USA, 2017.10.11.

• Tadashi Fujieda, Hiroshi Shiratori, Kosuke Kuwabara, Kenta Yamanaka, Yuichiro Koizumi, Akihiko Chiba, Seiichi Watanabe, "Mechanical and Corrosion Properties of CoCrFeNiTi-based High-entropy Alloy Additive Manufactured Using Selective Laser Beam Melting", Materials Science and Technology 2017 (MS&T17), Pittsburgh, Pennsylvania, USA, 2017.10.10.

• Kenta Yamanaka, Manami Mori, Shigeo Sato, Yusuke Onuki, Akihiko Chiba, "Decomposition of α’ martensite of Ti−6Al−4V alloy during electron beam melting", Materials Science and Technology 2017 (MS&T17), Pittsburgh, Pennsylvania, USA, 2017.10.9.

• Akihiko Chiba, "Process optimization for Additively Manufactured Industrial and Biomedical Metal Parts by Using Electron Beam Melting", 2017 International Top-Level Forum on Engineering Science and Technology Development Strategy – Additive Manufacturing, Xian, China, 2017.9.27. [Invited]

• Akihiko Chiba, "Effects of post-processing on fatigue strength of Ti-6Al-4V alloy fabricated by electron beam additive manufacturing", PMTi207 4th International Conference on Titanium Powder Metallurgy & Additive manufacturing, Xian, China, 2017.9.8-10. [Invited]

• Akihiko Chiba, " ", Additive Manufacturing Coference of China 2017, Hangzhou Internatinoal Expo Center, Hangzhou, China, 2017.7.28-30. [Invited]

• Yuichiro Koizumi, Yushi Ohno, Yufan Zhao (D2), Akihiko Chiba, "Solidification Analysis of Ni Based Superalloy Melted by Electron Beam for Additive Manufacturing", Minisymposium: Modeling and Simulation in Additive Manufacturing, The 14th U.S. National Congress on Computational Mechanics (USNCCM14), Montreal, Canada, 2017.7.18.

• Yufan Zhao (D2), Yuichiro Koizumi, Kenta Aoyagi, Kenta Yamanaka, Daixiu Wei, Akihiko Chiba, "Molten Pool Behavior and Solidification Microstructure of Co-Cr-Mo Alloy in Powder-Bed Electron Beam Additive Manufacturing", Minisymposium: Modeling and Simulation in Additive Manufacturing, The 14th U.S. National Congress on Computational Mechanics (USNCCM14), Montreal, Canada, 2017.7.18.

• Yuhang Hou (D2), "Copper influence on corrosion resistance to hydrofluoric acid solution of Ni–Co–Cr–Mo–Cu alloys", 2017 Annual Meeting of Excellent Graduate Schools for Materials Integration Center and Materials Science Center in conjunction with 2017 Russia-Japan Conference "Advanced Materials: Synthesis, Processing and Properties of Nanostructures", Akiu Onsen, Hotel Hananoyu, Sendai, Japan, 2017.03.21-22. [Poster]

• Xiaoyu Wang (D2), "Process parameter optimization and microstructure control for Inconel 718 fabricated by electron beam melting", 2017 Annual Meeting of Excellent Graduate Schools for Materials Integration Center and Materials Science Center in conjunction with 2017 Russia-Japan Conference "Advanced Materials: Synthesis, Processing and Properties of Nanostructures", Akiu Onsen, Hotel Hananoyu, Sendai, Japan, 2017.03.21-22. [Poster]

• Xiao Ding (D2), "Microstructure and mechanical properties of commercially pure titanium (CP-Ti) with multi- layered structure fabricated by electron beam melting (EBM)", 2017 Annual Meeting of Excellent Graduate Schools for Materials Integration Center and Materials Science Center in conjunction with 2017 Russia-Japan Conference "Advanced Materials: Synthesis, Processing and Properties of Nanostructures", Akiu Onsen, Hotel Hananoyu, Sendai, Japan, 2017.03.21-22. [Poster]

• Yufan Zhao (D1), "Investigation on molten pool behavior in electron beam melting of Co–Cr–Mo alloy", 2017 Annual Meeting of Excellent Graduate Schools for Materials Integration Center and Materials Science Center in conjunction with 2017 Russia-Japan Conference "Advanced Materials: Synthesis, Processing and Properties of Nanostructures", Akiu Onsen, Hotel Hananoyu, Sendai, Japan, 2017.03.21-22. [Poster]

• Dong-Soo Kang (D2), "Effect of micro-alloying element addition on solidification structure in polycrystalline Ni based superalloy", 2017 Annual Meeting of Excellent Graduate Schools for Materials Integration Center and Materials Science Center in conjunction with 2017 Russia-Japan Conference "Advanced Materials: Synthesis, Processing and Properties of Nanostructures", Akiu Onsen, Hotel Hananoyu, Sendai, Japan, 2017.03.21-22. [Poster]

• Akihiko Chiba, "Microstructure and Mechanical Properties Evolution of Biomedical Co-Cr-Mo Alloys Produced by Electron Beam Additive Manufacturing", TMS2017, San Diego, California, USA, 2017.02.26-03.02. [Invited]

• Tadashi Fujieda (Hitachi), Hiroshi Shiratori (Hitachi), Kosuke Kuwabara (Hitachi), Mamoru Hirota (Hitachi), Takahiko Kato (Hitachi), Kenta Yamanaka, Yuichiro Koizumi, Akihiko Chiba, Seiichi Watanabe (Hokkaido Univ.), "Mechanical and Corrosion Properties of CoCrFeNiTi-based High-entropy Alloy Additive Manufactured Using Selective Electron Beam Melting", TMS2017, San Diego, California, USA, 2017.02.26-03.02. [Invited]

• Kenta Yamanaka, Manami Mori (National Institute of Technology, Sendai College), Shigeo Sato (Ibaraki Univ.), Akihiko Chiba, "A Novel Strengthening Strategy Using Stacking Faults for Biomedical Co–Cr–Mo Alloys", TMS2017, San Diego, California, USA, 2017.02.26-03.02.

• Yuichiro Koizumi, Toshihiro Yamazaki, Akihirko Chiba, Koretaka Yuge (Kyoto Univ.), Kyosuke Kishida (Kyoto Univ.), Haruyuki Inui (Kyoto Univ.), Koji Hagihara (Osaka Univ.), Takayoshi Nakano (Osaka Univ.), "Phase Field Simulation of Microstructure Formation in MoSi₂-Based Dual Phase Alloys", 2016 MRS Fall Meeting & Exhibit, Boston, Massachusetts, USA, 2016.11.27-12.2.

• D.-S. Kang (D2), Y. Koizumi, K. Yamanaka, A. Chiba, "Characteristics of Ni based superalloy fabricated by electron beam melting", 2016 Russia-Japan conference "Advanced Materials: Synthesis, Processing and Properties of Nanostructures", Novosibirsk, Russia, 2016.10.30-11.3.

• Y. Hou (D2), Y. Li (Central South Univ.), A. Chiba, "Copper Influence on Corrosion Resistance to HF Acid Solution of Cu-modified Ni-Co-Cr-Mo Alloys", 2016 Russia-Japan conference "Advanced Materials: Synthesis, Processing and Properties of Nanostructures", Novosibirsk, Russia, 2016.10.30-11.3.

• Yufan Zhao (D1), Yuichiro Koizumi, Kenta Aoyagi, Kenta Yamanaka, Akihiko Chiba, "Modeling and Simulation of Electron Beam Additive Manufacturing for Biomedical Co-Cr-Mo Alloy", The International Symposium on Visualization in Joining & Welding Science through Advanced Measurements and Simulation in conjunction with symposium on the research activities of Joint Usage / Research Center on Joining and Welding & The 1st International Symposium on Creation of Life Innovation Materials for Interdisciplinary and International Researcher Development (iLIM-1), Hotel Hankyu Expo Park, Osaka, Japan, 2016.10.17-18. [Poster]

• Yuichiro Koizumi, Arata Okazaki, Akihiko Chiba, Takahiko Kato (Hitachi), Akihiro Takezawa (Hiroshima Univ.), "Cellular lattice of biomedical Co-Cr-Mo alloy fabricated by electron beam melting", The International Symposium on Visualization in Joining & Welding Science through Advanced Measurements and Simulation in conjunction with symposium on the research activities of Joint Usage / Research Center on Joining and Welding & The 1st International Symposium on Creation of Life Innovation Materials for Interdisciplinary and International Researcher Development (iLIM-1), Hotel Hankyu Expo Park, Osaka, Japan, 2016.10.17-18. [Poster]

• Yuichiro Koizumi, Shi-Hai Sun, Xiao Ding (D2), Akihiko Chiba, "Microstructure and Creep Behavior of Alloy 718 Fabricated by Electron-Beam Melting", The International Symposium on Visualization in Joining & Welding Science through Advanced Measurements and Simulation in conjunction with symposium on the research activities of Joint Usage / Research Center on Joining and Welding & The 1st International Symposium on Creation of Life Innovation Materials for Interdisciplinary and International Researcher Development (iLIM-1), Hotel Hankyu Expo Park, Osaka, Japan, 2016.10.17-18. [Invited]

• Yuichiro Koizumi, Shi-Hai Sun, Xiao Ding, Kenta Yamanaka, Kenta Aoyagi, Akihiko Chiba"Microstructure Control of Alloy 718 Additively Manufactured by Selective Electron-Beam Melting", 10th International Conference on Trends in Welding Research & 9th International Welding Symposium of Japan Welding Society (9WS), Hitotsubashi Hall, Tokyo, Japan, 2016.10.13.

• Akihiko Chiba, Kenta Yamanaka, Yuichiro Koizumi, "Microstructure and Mechanical Properties Evolution of Biomedical Co-Cr-Mo Alloys Produced by Manufactured by Electron Beam Additive Manufacturing", Global/Local Innovations for Next Generation Automobiles 2016, Sendai Internatinoal Center, Miyagi, Japan, 2016.10.11-12.

• Kenta Aoyagi, "Electron Beam Melting", Global/Local Innovations for Next Generation Automobiles 2016, Sendai Internatinoal Center, Miyagi, Japan, 2016.10.11-12. [Poster]

• Akihiko Chiba, Kenta Yamanaka, Yuichiro Koizumi, "Microstructure and Mechanical Properties Evolution of Biomedical Co-Cr-Mo Alloys Produced by Manufactured by Electron Beam Additive Manufacturing", Global/Local Innovations for Next Generation Automobiles 2016, Sendai Internatinoal Center, Miyagi, Japan, 2016.10.10-11, 2016.

• Akihiko Chiba, "Microstructure and Mechanical Properties Evolution of Biomedical Co-Cr-Mo Alloys Manufactured by Electron Beam Additive Manufacturing", TFC ELyT Off-campus Workshop for Intensive Discussions, Miyagi-Zao Royal Hotel, To-o-gatta, Miyagi, Japan, 2016.10.6-8.[Plenary Talk]

• J. A. Chafino Aixa (D3), D. Farbègue, A. Chiba, K. Yamanaka, "Improving the mechanical properties of Ti-6Al-4V ELI alloy through its TRIP effect", TFC ELyT Off-campus Workshop for Intensive Discussions, Miyagi-Zao Royal Hotel, To-o-gatta, Miyagi, Japan, 2016.10.6-8.

• B. Ter Ovanessian, A. Chiba, "Corrosion of CoCrMo alloys", TFC ELyT Off-campus Workshop for Intensive Discussions, Miyagi-Zao Royal Hotel, To-o-gatta, Miyagi, Japan, 2016.10.6-8.

• B. Normand, B. T. Ovanessian, C. D. Loughian, L. Gremillard, A. Impergre, A. Chiba, "Development of CoCrMo alloys for biomedical applications: Biocompatibility, Corrosion, Tribocorrosion, Biotribocorrosion", TFC ELyT Off-campus Workshop for Intensive Discussions, Miyagi-Zao Royal Hotel, To-o-gatta, Miyagi, Japan, 2016.10.6-8. [Poster]

• S. Aota (M1), T. Takashima, T. Saito, Y. Li, Y. Koizumi, K. Yamanaka, K. Aoyagi, A. Chiba, "Influence of Building Position on Phase Distribution in Co-Cr-Mo Alloy Additive Manufactured by Electron-Beam Melting", TFC ELyT Off-campus Workshop for Intensive Discussions, Miyagi-Zao Royal Hotel, To-o-gatta, Miyagi, Japan, 2016.10.6-8. [Poster]

• Y. Zhao (D1), Y. Koizumi, A. Chiba, "Influence of Building Position on Phase Distribution in Co-Cr-Mo Alloy Additive Manufactured by Electron-Beam Melting", TFC ELyT Off-campus Workshop for Intensive Discussions, Miyagi-Zao Royal Hotel, To-o-gatta, Miyagi, Japan, 2016.10.6-8. [Poster]

• Yuichiro Koizumi, Arata Okazaki, Akihiko Chiba, Takahiko Kato (Hitachi), Akihiro Takezawa (Hiroshima Univ.), "Cellular Lattice of Biomedical Co-Cr-Mo Alloy Designed by Shape Optimization and Fabricated by Electron Beam Melting", The 11th International Workshop on Biomaterials in Interface Science, Tohoku University School of Dentistry, Sendai, Japan, 2016.8.30-31.

• Shoya Aota (M1), Taiyo Takashima, Yunping Li (Central South Univ.), Tsuyoshi Saito, Kenta Yamanaka, Akihiko Chiba, "Effect of Building Position on Phase Distribution in Biomedical Co-Cr-Mo Alloy Additively Manufactured by Electron-Beam Melting (EBM)", The 11th International Workshop on Biomaterials in Interface Science, Tohoku University School of Dentistry, Sendai, Japan, 2016.8.30-31.

• X. Wang (D2), K. Yamanaka, K. Shinzawa (D3), A. Chiba, "Optimizing Building Parameters of Commercially Pure Titanium Built by Electron Beam Melting", PRICM9: 9th Pacific Rim International Conference on Advanced Materials and Processing, Kyoto International Conference Center, Kyoto, Japan, 2016.8.1-5.

• K.Yamanaka, X. Shui (M2), M. Mori (National Institute of Technology, Sendai College), A. Chiba, "Assessment of Critical Factors Influencing Fatigue Properties of Ti-6Al-4V Alloy Fabricated by Electron Beam Melting", PRICM9: 9th Pacific Rim International Conference on Advanced Materials and Processing, Kyoto International Conference Center, Kyoto, Japan, 2016.8.1-5.

• K.Yamanaka, M. Mori (National Institute of Technology, Sendai College), K. Yoshida, K. Kuramoto, A. Chiba, "Processing, Microstructure and Mechanical Properties of Co-Cr-Mo Alloy Rods for Spinal Instrumentation Surgery", PRICM9: 9th Pacific Rim International Conference on Advanced Materials and Processing, Kyoto International Conference Center, Kyoto, Japan, 2016.8.1-5.

• X. Shui (M2), K. Yamanaka, K. Shinzawa (D3), M. Mori (National Institute of Technology, Sendai College), Y. Nagata (Koiwai), K. Kurita (Koiwai), A. Chiba, "Microstructure and Mechanical Properties Dependencies on Processing Parameters for Ti-6Al-4V Alloy Produced by Electron Beam Melting", PRICM9: 9th Pacific Rim International Conference on Advanced Materials and Processing, Kyoto International Conference Center, Kyoto, Japan, 2016.8.1-5.

• K. Kuwabara (Hitachi), T. Fujieda (Hitachi), H. Shiratori (Hitachi), M. Hirota (Hitachi), T.Kato (Hitachi), K. Yamanaka, Y. Koizumi, A. Chiba, S. Watanabe (Hokkaido Univ.), "Corrosion Properties of CoCrFeNiTi-Based High-Entropy Alloy Additive Manufactured Using Selective Electron Beam Melting", PRICM9: 9th Pacific Rim International Conference on Advanced Materials and Processing, Kyoto International Conference Center, Kyoto, Japan, 2016.8.1-5.

• T. Fujieda (Hitachi), H. Shiratori (Hitachi), K. Kuwabara (Hitachi), M. Hirota (Hitachi), T.Kato (Hitachi), K. Yamanaka, Y. Koizumi, A. Chiba, S. Watanabe (Hokkaido Univ.), "Mechanical Properties of CoCrFeNiTi-Based High-Entropy Alloy Additive Manufactured Using Selective Electron Beam Melting", PRICM9: 9th Pacific Rim International Conference on Advanced Materials and Processing, Kyoto International Conference Center, Kyoto, Japan, 2016.8.1-5.

• Y. Koizumi, S. Sun, T. Saito, K. Yamanaka, Y. Li, Y. Cui, D. Xiao (D2), A. Chiba, "Alloy 718 Rods Additively Manufactured by Electron-Beam Melting (EBM)", PRICM9: 9th Pacific Rim International Conference on Advanced Materials and Processing, Kyoto International Conference Center, Kyoto, Japan, 2016.8.1-5. [Invited]

• X. Ding (D2), Y. Koizumi, A. Chiba, "Melt Pool Characterization and Modelling of Electron Beam Melting for IN718", PRICM9: 9th Pacific Rim International Conference on Advanced Materials and Processing, Kyoto International Conference Center, Kyoto, Japan, 2016.8.1-5.

• D. Kang (D2), Y. Koizumi, K. Yamanaka, A. Chiba, "Yttrium Influence on High Temperature Tensile Property of IN-713C Alloy", PRICM9: 9th Pacific Rim International Conference on Advanced Materials and Processing, Kyoto International Conference Center, Kyoto, Japan, 2016.8.1-5.

• T. Yamazaki, Y. Koizumi, A. Chiba, K. Yuge (Kyoto Univ.), K. Kishida (Kyoto Univ.), H. Inui (Kyoto Univ.), "Microstructure Formation in MoSi₂/Mo₅Si₃ Alloy Simulated by Phase-Field Method", PRICM9: 9th Pacific Rim International Conference on Advanced Materials and Processing, Kyoto International Conference Center, Kyoto, Japan, 2016.8.1-5. [Poster]

• Y. Hou (D2), Y. Li (Central South Univ.), A. Chiba, "Development of NiCoCrMoCu Alloy with Both High Strength and High Corrosion Resistance to Aqueous Hydro-Fluoric Acid", PRICM9: 9th Pacific Rim International Conference on Advanced Materials and Processing, Kyoto International Conference Center, Kyoto, Japan, 2016.8.1-5. [Poster]

• K. Shinzawa (D3), Y. Koizumi, K. Yamanaka, T. Kii, T. Saito, A. Chiba, "Microstructure and Mechanical Properties Evaluation of Ti48Al2Nb2Cr Alloy Manufactured by Electron Beam Melting", PRICM9: 9th Pacific Rim International Conference on Advanced Materials and Processing, Kyoto International Conference Center, Kyoto, Japan, 2016.8.1-5. [Poster]

• Kenta Yamanaka, Xiaoli Shui (M2), Xiaoyu Wang (D2), Manami Mori (National Institute of Technology, Sendai College), Akihiko Chiba, "Feasibility of titanium components additively manufactured by electron beam melting: Microstructural and mechanical considerations", WBC2016, 10th World Biomaterials Congress, The Palais des congrès de Montréal, Montreal, Quebec, Canada, 2016.5.18. [Poster]

• Manami Mori (National Institute of Technology, Sendai College), Kenta Yamanaka, Shigeo Sato (Ibaraki Univ.), Akihiko Chiba, "A multipass "low-strain-per-pass" thermomechanical processing for strengthening biomedical Co-Cr-Mo alloys", WBC2016, 10th World Biomaterials Congress, The Palais des congrès de Montréal, Montreal, Quebec, Canada, 2016.5.18. [Poster]

• Xiaoli Shui (M2), K. Yamanaka, M. Mori (National Institute of Technology, Sendai College), Y. Nagata (Koiwai), K. Kurita (Koiwai), A. Chiba, "Determination of the optimum processing parameters for electron beam melting of Ti–6Al–4V alloy", Summit of Materials Science 2016: SMS2016, Institute for Materials Research, Tohoku University, Sendai, Japan, 2016.5.18.

• T. Yamazaki, Y. Koizumi, A. Chiba, K. Yuge (Kyoto Univ.), K. Kishida (Kyoto Univ.), H. Inui (Kyoto Univ.), "Microstructure formation in MoSi₂/Mo₅Si₃ alloy containing structural ledge", Summit of Materials Science 2016: SMS2016, Institute for Materials Research, Tohoku University, Sendai, Japan, 2016.5.18. [Poster]

• Xiao Ding (D2), Yuichiro Koizumi, Akihiko Chiba, "Effect of Process Conditions on Melt Pool Geometry and Grain Growth Behavior of Electron Beam Melting for IN718", Summit of Materials Science 2016: SMS2016, Institute for Materials Research, Tohoku University, Sendai, Japan, 2016.5.18. [Poster]

• S. Kakiuchi (M2), Y. Koizumi, A. Chiba, T. Ozaki (IHI), "Microstructure of Ni-based Superalloy Formed by Electron Beam Melting for Additive Manufacturing", Summit of Materials Science 2016: SMS2016, Institute for Materials Research, Tohoku University, Sendai, Japan, 2016.5.18. [Poster]

• Y. Ohno (M2), Y. Koizumi, A. Chiba, T. Hino (Toshiba), M. Takahashi (Toshiba), "Solidification microstructure of Ni based superalloy "Rene80" by selectively melt by electron beam for additive manufacturing", Summit of Materials Science 2016: SMS2016, Institute for Materials Research, Tohoku University, Sendai, Japan, 2016.5.18. [Poster]

• C. Zhang (M2), K. Yamanaka, K. Aoyagi, Y. Koizumi, A. Chiba, "Corrosion Resistance and Passive Film Formation of Cu-modified Ni-Based Alloy in Hydrofluoric Acid", Summit of Materials Science 2016: SMS2016, Institute for Materials Research, Tohoku University, Sendai, Japan, 2016.5.18. [Poster]

• K. Yamanaka, M. Mori (National Institute of Technology, Sendai College), S. Sato (Ibaraki Univ.), A. Chiba, "A novel strengthening strategy using multipass thermomechanical processing for biomedical Co–Cr–Mo alloys", Summit of Materials Science 2016: SMS2016, Institute for Materials Research, Tohoku University, Sendai, Japan, 2016.5.18. [Poster]

• X.Y. Wang (D2), K. Yamanaka, K. Shinzawa (D3), A. Chiba, "Characterization of electron beam melting (EBM) built commercial pure titanium (CP-Ti) with different building parameters", Summit of Materials Science 2016: SMS2016, Institute for Materials Research, Tohoku University, Sendai, Japan, 2016.5.18. [Poster]

• Y. Koizumi, T. Takashima, K. Yamanaka, K. Aoyagi, T. Saito, A. Chiba, "Heterogeneity in Biomedical Co–Cr–Mo Alloy Fabricated by Electron-Beam Additive Manufacturing", Summit of Materials Science 2016: SMS2016, Institute for Materials Research, Tohoku University, Sendai, Japan, 2016.5.18. [Poster]

• Dongsoo Kang (D1), Yuichiro Koizumi, Kenta Yamanaka, Akihiko Chiba, WhangJin Kang, "Characterizations of yttrium modified polycrystalline IN-713C alloy", 2016 Japan-Russia Joint Seminar "Advanced Materials Synthesis Process and Nanostructure" in conjunction with 2015 Annual Meeting of Excellent Graduate Schools for "Materials Integration Center" and "Materials Science Center", Akiu, Sendai, Japan, 2016.3.18-19. [Poster]

• Kotaro Sano (M2), Yuichiro Koizumi, Akihiko Chiba, Koji Hagihara (Osaka University), Yoshihito Kawamura (Kumamoto University), "Cyclic deformation behavior of Mg85Zn6Y9 alloy with long-period stacking-ordered structure", 2016 Japan-Russia Joint Seminar "Advanced Materials Synthesis Process and Nanostructure" in conjunction with 2015 Annual Meeting of Excellent Graduate Schools for "Materials Integration Center" and "Materials Science Center", Akiu, Sendai, Japan, 2016.3.18-19. [Poster]

• Xiao Ding (D1), Yuichiro Koizumi, Akihiko Chiba, "Melt pool characterization and modelling of electron beam melting for IN718", 2016 Japan-Russia Joint Seminar "Advanced Materials Synthesis Process and Nanostructure" in conjunction with 2015 Annual Meeting of Excellent Graduate Schools for "Materials Integration Center" and "Materials Science Center", Akiu, Sendai, Japan, 2016.3.18-19. [Poster]

• Taiyo Takashima (M2), Yuichiro Koizumi, Yunping Li (Central South University), Kenta Yamanaka, Tsuyoshi Saito, Akihiko Chiba, "Effect of building position and heat treatment on phase distribution and mechanical property in Co–Cr–Mo alloy manufactured by electron beam melting", 2016 Japan-Russia Joint Seminar "Advanced Materials Synthesis Process and Nanostructure" in conjunction with 2015 Annual Meeting of Excellent Graduate Schools for "Materials Integration Center" and "Materials Science Center", Akiu, Sendai, Japan, 2016.3.18-19. [Poster]

• Xiaoyu Wang (D1), Kenta Yamanaka, Keisuke Shinzawa, Akihiko Chiba, "Characterization of commercial pure titanium (CP-Ti) built by selective electron beam melting (EBM)", 2016 Japan-Russia Joint Seminar "Advanced Materials Synthesis Process and Nanostructure" in conjunction with 2015 Annual Meeting of Excellent Graduate Schools for "Materials Integration Center" and "Materials Science Center", Akiu, Sendai, Japan, 2016.3.18-19. [Poster]

• Yuhang Hou (D1), Yunping Li (Central South University), Yuichiro Koizumi, Akihiko Chiba, "Influence of Mo concentration on corrosion resistance to HF acid solution of Ni–Co–Cr– Mo alloys with and without Cu", 2016 Japan-Russia Joint Seminar "Advanced Materials Synthesis Process and Nanostructure" in conjunction with 2015 Annual Meeting of Excellent Graduate Schools for "Materials Integration Center" and "Materials Science Center", Akiu, Sendai, Japan, 2016.3.18-19. [Poster]

• Yujie Cui (D3), Yunping Li (Central South University), Yuichiro Koizumi, Akihiko Chiba, "Effect of twin boundary mobility on damping capacity of magnesium alloys", 2016 Japan-Russia Joint Seminar "Advanced Materials Synthesis Process and Nanostructure" in conjunction with 2015 Annual Meeting of Excellent Graduate Schools for "Materials Integration Center" and "Materials Science Center", Akiu, Sendai, Japan, 2016.3.18-19. [Poster]

• Toshihiro Yamazaki (D3), Yuichiro Koizumi, Akihiko Chiba, Koretaka Yuge (Kyoto University), Kyosuke Kishida (Kyoto University), Haruyuki Inui (Kyoto University), "Microstructural evolution in MoSi2-based dual phase ultrahigh temperature structural material by phase-field method", 2016 Japan-Russia Joint Seminar "Advanced Materials Synthesis Process and Nanostructure" in conjunction with 2015 Annual Meeting of Excellent Graduate Schools for "Materials Integration Center" and "Materials Science Center", Akiu, Sendai, Japan, 2016.3.18-19. [Poster]

• Hiroshi Shiratori (M2), Tadashi Fujieda (Hitachi), Kosuke Kuwabara (Hitachi), Takahiko Kato (Hitachi), Kenta Yamanaka, Yuichiro Koizumi, Akihiko Chiba, "Relationship between microstructures and properties of an equiatomic AlCoCrFeNi high-entropy alloy fabricated with selective electron beam melting", 2016 Japan-Russia Joint Seminar "Advanced Materials Synthesis Process and Nanostructure" in conjunction with 2015 Annual Meeting of Excellent Graduate Schools for "Materials Integration Center" and "Materials Science Center", Akiu, Sendai, Japan, 2016.3.18-19. [Poster]

• Patrik Stenlunda (University of Gothenburg), Shingo Kurosu, Yuichiro Koizumi, Felicia Suska (University of Gothenburg), Hiroaki Matsumoto, Akihiko Chiba, Anders Palmquist (University of Gothenburg), "Mechanical and biological response of biomedical Co-Cr-Mo alloy produced by additive manufacturing using electron beam melting (EBM)", Innovative Research for Biosis-Abiosis Intelligent Interface Symposium, Sendai, Japan, 2016.1.18. [Invited]

• A. Chiba, Y. Koizumi, S. Sun, S. Kurosu, "Microstructure and Mechanical Properties Evolution of Biomedical Co-Cr-Mo Alloys Produced by Electron Beam Additive Manufacturing", The Third International Symposium on Smart Layered Materials and Structures for Energy Saving, Sendai, Japan, 2015.10.29. [Invited]

• D. Fabrègue (INSA Lyon), J. A. C. Aixa (INSA Lyon/Tohoku University), A. Chiba, "Porous Titanium Alloys Elaborated by EBM with an Optimized Microstructure", The Third International Symposium on Smart Layered Materials and Structures for Energy Saving, Sendai, Japan, 2015.10.29.

• Kotaro Sano (M2), Yuichiro Koizumi, Akihiko Chiba, Koji Hagihara (Osaka Univ.), Yoshihito Kawamura (Kumamoto Univ.), "Cyclic deformation behavior of Mg₈₅Zn₆Y₉ alloy with 18R long-period stacking-ordered structure", The 10th International Conference on Magnesium Alloys and Their Applications 2015 (Mg2015), Jeju, Korea, 2015.10.14. [Poster]

• Mahsa Keyvani (The University of British Collombia), Thomas Garcin (The University of British Collombia), Damien Fabrègue (INSA Lyon), Matthias Militzer (The University of British Collombia), Kenta Yamanaka, Akihiko Chiba, "Application of Laser Ultrasonics for the Real Time Measurement of Grain Size in Cobalt Based Super Alloys", MS&T15: Materials Science and Technology 2015, Columbus, Ohio, USA, 2015.10.5-8.

• Hiroshi Shiratori (M2), Tadashi Fujieda (Hitachi), Kosuke Kuwabara (Hitachi), Takahiko Kato (Hitachi), Kenta Yamanaka, Yuichiro Koizumi, Akihiko Chiba, "Effects of Applying Selective Electron Beam Melting on the Microstructures and Hardness of High-Entropy Alloys", MS&T15: Materials Science and Technology 2015, Columbus, Ohio, USA, 2015.10.5-8.

• Tadashi Fujieda (Hitachi), Hiroshi Shiratori (M2), Kosuke Kuwabara (Hitachi), Takahiko Kato (Hitachi), Kenta Yamanaka, Yuichiro Koizumi, Akihiko Chiba, "Effects of Applying Selective Electron Beam Melting on the Mechanical Properties of High-entropy Alloy", MS&T15: Materials Science and Technology 2015, Columbus, Ohio, USA, 2015.10.5-8.

• Kosuke Kuwabara (Hitachi), Hiroshi Shiratori (M2), Tadashi Fujieda (Hitachi), Takahiko Kato (Hitachi), Kenta Yamanaka, Yuichiro Koizumi, Akihiko Chiba, "Corrosion Properties of AlCoCrFeNi High Entropy Alloy fabricated with Selective Electron Beam Meltingy", MS&T15: Materials Science and Technology 2015, Columbus, Ohio, USA, 2015.10.5-8.

• Kenta Yamanaka, Xiaoli Shui (M2), Manami Mori (Sendai National College of Technology), Akihiko Chiba, "Effects of Post-processing on Microstructures and Mechanical Properties of Ti-6Al-4V Alloy Fabricated by Electron Beam Melting", MS&T15: Materials Science and Technology 2015, Columbus, Ohio, USA, 2015.10.5-8.

• Kenta Yamanaka, Manami Mori (Sendai National College of Technology), Kazuo Yoshida, Koji Kuramoto (Eiwa), Akihiko Chiba, Ken Yamazaki (Iwate Medical University), "Development of High-strength Co-Cr-Mo Alloy Rods for Spinal Instrumentation Surgery", MS&T15: Materials Science and Technology 2015, Columbus, Ohio, USA, 2015.10.5-8.

• Keisuke Shinzawa (D3), Akihiko Chiba, Yuichiro Koizumi, Kenta Yamanaka, Tsuyoshi Saito, Tadashi Kii, "Electron Beam Melting of Ti-48Al-2Nb-2Cr:Microstructure and Mechanical Property", MS&T15: Materials Science and Technology 2015, Columbus, Ohio, USA, 2015.10.5-8. [Poster]

• Manami Mori (Sendai National College of Technology), Kenta Yamanaka, Shigeo Sato (Ibaraki University), Akihiko Chiba, "Assessment of Microstructures and Mechanical Behavior of Hot-rolled Co-Cr-Mo Alloys", MS&T15: Materials Science and Technology 2015, Columbus, Ohio, USA, 2015.10.5-8. [Poster]

• Kenta Yamanaka, Manami Mori (Sendai National College of Technology), Akihiko Chiba, "Martensitic Transformation and Its Effects on Microstructural Evolution and Mechanical Properties in Electron Beam Melting of Commercially Pure Titanium and Ti-6Al-4V Alloy", Ti-2015: The 13th World Conference on Titanium, San Diego, California, USA, 2015.8.16-20.

• Yonosuke Murayama (Niigata Institue of Technology), Akihiko Chiba, "Mechanical Properties of a Rod for Spinal Deformity Correction Produced from Meta-stable Beta Ti-Cr-Sn-Zr Alloys", Ti-2015: The 13th World Conference on Titanium, San Diego, California, USA, 2015.8.16-20. [Poster]

• Hiroaki Matsumoto (Kagawa University), Vincent Velay (Ecole des Mines d'Albi-Carmaux), Akihiko Chiba, "Superplasticity of the Ultrafine-grained Ti-6Al-4V Alloy with a Metastable α-single Phase Microstructure", Ti-2015: The 13th World Conference on Titanium, San Diego, California, USA, 2015.8.16-20.

• Kenta Yamanaka, Manami Mori (Sendai National College of Technology), Koji Kuramoto (Eiwa), Akihiko Chiba, "Effects of carbon addition on mechanical and corrosion properties of biomedical Co-Cr-W cast alloys containing high amounts of chromium and nitrogen", The 10th Anniversary International Workshop on Biomaterials in Interface Science in conjunction with Innovative Research for Biosis-Abiosis Intelligent Interface Summer Seminar 2015, Zao, Miyagi, Japan,2015.8.3-4.

• Yuichiro Koizumi, Arata Okazaki, Akihiko Chiba, "Microstructure and Shape Optimization of Porous Biomedical Co-Cr-Mo Alloy Fabricated by Electron Beam Melting", 13th U.S. National Congress on Computational Mechanics (USNCCM13), Sand Diego, California, USA, 2015.7.26-30.

• Akihiko Chiba, "Mechanical and biological response of biomedical Co-Cr-Mo alloy produced by additive manufacturing using electron beam melting (EBM)", Seminar series on Biomaterials and Regenerative Medicine, University of Gothenburg, Gothenburg, Sweden, 2015.5.19. [Invited]

• Kenta Yamanaka, Manami Mori (D1), Tsuyoshi Saito, Wataru Saito (M2), Akihiko Chiba, "Phase Transformation in Electron Beam Melting of Commercially Pure Titanium and Ti-6Al-4V Alloy", TMS2015, Orlando, Florida, 2015.3.15-19.

• Manami Mori (D1), Kenta Yamanaka, Akihiko Chiba, "Evolution of Cold-rolled Microstructure and Mechanical Properties of Biomedical Co-Cr Alloys", TMS2015, Orlando, Florida, 2015.3.15-19. [Poster]

• Yujie Cui (D2), "A study on the detwinning behavior in Magnesium alloy", Japan-Russia Joint Seminar "Advanced Materials Synthesis Process and Nanostructure" in conjunction with 2014 Annual Meeting of Excellent Graduate Schools for "Materials Integration Center" and "Materials Science Center", Hotel Hananoyu, Akiu, Sendai, Japan, 2015.3.9-10.

• Phacharaphon Tunthawiroon (D2), "Strain-controlled iso-thermal fatigue test of Co-29Cr-6Mo as potential tooling materials for Al die casting", Japan-Russia Joint Seminar "Advanced Materials Synthesis Process and Nanostructure" in conjunction with 2014 Annual Meeting of Excellent Graduate Schools for "Materials Integration Center" and "Materials Science Center", Hotel Hananoyu, Akiu, Sendai, Japan, 2015.3.9-10.

• Dai-Xiu Wei (D2), "Control of phase decomposition by nanogrooving process in Ti-39 at.% Al single crystals", Japan-Russia Joint Seminar "Advanced Materials Synthesis Process and Nanostructure" in conjunction with 2014 Annual Meeting of Excellent Graduate Schools for "Materials Integration Center" and "Materials Science Center", Hotel Hananoyu, Akiu, Sendai, Japan, 2015.3.9-10.

• Yuichiro Koizumi, Toshihiro Yamazaki (D2), Akihiko Chiba, Koretaka Yuge (Kyoto Univ.), Koji Hagihara (Osaka Univ.), Takayoshi Nakano (Osaka Univ.), Kyosuke Kishida (Kyoto Univ.), Haruyuki Inui (Kyoto Univ.), "Phase-field simulation of microstructural evolution and interfacial segregation in MoSi₂-based alloys", Czech-Japanese Workshop on High-Temperature Intermetallics, Brno, Czech, 2014.8.13-16. [Invited]

• Yuichiro Koizumi, Toshihiro Yamazaki (D2), Akihiko Chiba, Koji Hagihara (Osaka Univ.), Takayoshi Nakano (Osaka Univ.), Koretaka Yuge (Kyoto Univ.), Kyosuke Kishida (Kyoto Univ.), Haruyuki Inui (Kyoto Univ.), "Dominant Factors of Microstructural Evolution and Interfacial Segregation in MoSi₂-Based Alloys Studied by Phase-Field Method", 2014 MRS Fall Meeting & Exhibit, Boston, Massachusetts, 2014.11.30-12.5.

• Kenta Yamanaka, Manami Mori (Sendai National College of Technology), Akihiko Chiba, Tsuyoshi Saito, Shingo Kurosu, Yuichiro Koizumi, "Characterization of As-built Microstructure and Mechanical Properties of Ti-6Al-4V Alloy Fabricated by Electron Beam Melting", Advances in Titanium Manufacturing: Powder Processing, Powder Metallurgy, and Additive/Emerging Manufacturing Techniques: Additive Manufacturing and 3D Printing, Materials Science & Technology 2014, Pittsburgh, Pennsylvania, 2014.10.13-16.

• Shi-Hai Sun (D3), Yuichiro Koizumi, Tsuyoshi Saito, Yunping Li, Akihiko Chiba, "Anisotropic Creep Properties of Inconel 718 Fabricated by Electron Beam Melting", Materials Science of Additive Manufacturing: Materials Characterization II, Materials Science & Technology 2014, Pittsburgh, Pennsylvania, 2014.10.13-16.

• Arata Okazaki (M2), Yuichiro Koizumi, Shi-Hai Sun (D3), Tsuyoshi Saito, Yunping Li, Kenta Yamanaka, Akihiko Chiba, "Grain Structure Heterogeneity in Biomedical Co-Cr-Mo-N Alloy Fabricated by Electron Beam Melting (EBM)", Materials Science of Additive Manufacturing: Processing II, Materials Science & Technology 2014, Pittsburgh, Pennsylvania, 2014.10.13-16.

• Kenta Yamanaka, Manami Mori (Sendai National College of Technology), Akihiko Chiba, "Nanostructured Co-Cr Alloys for Biomedical Applications", Next Generation Biomaterials: Session VI, Materials Science & Technology 2014, Pittsburgh, Pennsylvania, 2014.10.13-16.

• Akihiko Chiba, Shi-Hai Sun (D3), Yuichiro Koizumi, Shingo Kurosu, Yun-Ping Li, Kenta Yamanaka, "Build Direction Dependence of Microstructure and Tensile Property of Co Based Alloys Fabricated by Electron Beam Melting", Processes, Applications, and Performance of Materials in Additive Manufacturing : Microstructure and Properties, Materials Science & Technology 2014, Pittsburgh, Pennsylvania, 2014.10.13-16.

• Manami Mori, Kenta Yamanaka, Kozue Satoh (D1), Shigeo Sato (Ibaraki Univ.), Shinki Tsubaki (M2, Tokyo City University), Masayoshi Kumagai (Tokyo City University), Muneyuki Imafuku (Tokyo City University), Akihiko Chiba, "Strengthening Mechanism of Biomedical Co-Cr-Mo Alloy Prepared by Thermomechanical Processing", MS&T14 Poster Session: Biomaterials, Materials Science & Technology 2014, Pittsburgh, Pennsylvania, 2014.10.13-16. [Poster]

• Yuichiro Koizumi, Toshihiro Yamazaki (D2), Akihiko Chiba, Koji Hagihara (Osaka Univ.), Takayoshi Nakano (Osaka Univ.), Koretaka Yuge (Kyoto Univ.), Kyosuke Kishida (Kyoto Univ.), Haruyuki Inui (Kyoto Univ.), "Interfacial Segregation in MoSi₂-Based Duplex Alloys: a Systematic Phase-field Study Combined with First-Principles Calculation ", Third International Symposium on Phase-field Methods 2014－PFM2014, State College, Pennsylvania, 2014.8.26-29. [Invited]

• Toshihiro Yamazaki (D2), Yuichiro Koizumi, Akihiko Chiba, Koji Hagihara (Osaka Univ.), Takayoshi Nakano (Osaka Univ.), Koretaka Yuge (Kyoto Univ.), Kyosuke Kishida (Kyoto Univ.), Haruyuki Inui (Kyoto Univ.), "Dominant Factors in Microstructure Formation in MoSi₂‐Based Duplex Alloys", Third International Symposium on Phase-field Methods 2014－PFM2014, State College, Pennsylvania, 2014.8.26-29. [Poster]

• Kenta Yamanaka, Manami Mori, Tsuyoshi Saito, Akihiko Chiba, "Electron beam melting of titanium and titanium alloy: Microstructural evolution and mechanical properties", 9th International Workshop on Biomaterials in Interface Science in conjunction with Innovative Research for Biosis-Abiosis Intelligent Interface Summer Seminar 2014, Zao, Miyagi, 2014.8.26-27.

• Kenta Yamanaka, Manami Mori, Tsuyoshi Saito, Akihiko Chiba, "Electron beam melting of titanium and titanium alloy: Microstructural evolution and mechanical properties", 9th International Workshop on Biomaterials in Interface Science in conjunction with Innovative Research for Biosis-Abiosis Intelligent Interface Summer Seminar 2014, Zao, Miyagi, 2014.8.26-27.

• Toshihiro Yamazaki (D2), Yuichiro Koizumi, Akihiko Chiba, Koji Hagihara (Osaka Univ.), Takayoshi Nakano (Osaka Univ.), Koretaka Yuge (Kyoto Univ.), Kyosuke Kishida (Kyoto Univ.), Haruyuki Inui (Kyoto Univ.), "Microstructural evolution in MoSi₂/NbSi₂ lamellar alloys", The Joint Symposium on Materials Science and Engineering for the Next Generation 2014－MSE2014, Zao, Miyagi, 2014.6.23-25. [Poster]

• Yujie Cui (D2), Y.P. Li, Yuichiro Koizumi, Akihiko Chiba, "Influence of Twin Boundaries on Damping Capacity of Mg Alloy", The Joint Symposium on Materials Science and Engineering for the Next Generation 2014－MSE2014, Zao, Miyagi, 2014.6.23-25. [Poster]

• Huakang Bian (D2), Yunping Li, Kenta Yamanaka, Yuichiro Koizumi, Akihiko Chiba, "A Study of γ' Precipitation and Stacking Fault in Co-Ni-Based Superalloy", The Joint Symposium on Materials Science and Engineering for the Next Generation 2014－MSE2014, Zao, Miyagi, 2014.6.23-25. [Poster]

• Daixu Wei (D2), Yuichiro Koizumi, Akihiko Chiba, "Laminated Porous Structure Produced by Selective Dissolution and Anodization of Lamellar TiAl Alloy", The 2nd International Symposium on Anodizing Science and Technology AST2014, Sapporo, Hokkaido, 2014.6.4-6.

• Shi-Hai Sun (D2), Yuichiro Koizumi, Tsuyoshi Saito, Yun-Ping Li, Akihiko Chiba, "Effect of build direction on high temperature mechanical properties of Inconel 718 fabricated by electron beam melting", 2014 Annual Meeting of Excellent Graduate Schools for "Materials Integration Center" and "Materials Science Center" in conjunction with International Workshop on Advanced Materials Synthesis Process and Nanostructure, Akiu, Sendai, 2014.3.10-11.

• Daixiu Wei (D1), Yuichiro Koizumi, Akihiko Chiba, , "Control of phase decomposition by nano-plastic deformation in Ti-39 at.%Al single crystal", 2014 Annual Meeting of Excellent Graduate Schools for "Materials Integration Center" and "Materials Science Center" in conjunction with International Workshop on Advanced Materials Synthesis Process and Nanostructure, Akiu, Sendai, 2014.3.10-11.

• Daixiu Wei (D1), Yuichiro Koizumi, Akihiko Chiba, "Nano-laminated Ti₃Al Porous Structure Produced by Hot Forging and Selective Dissolution", 2014 Functional Nanomaterials: Synthesis, Properties and Applications — Nanomanufacturing I, TMS2014, San Diego, USA, 2014.2.16-20.

• Yuichiro Koizumi, Daixiu Wei (D1), Akihiko Chiba, Akinori Yamanaka (Tokyo University of Agriculture and Technology), Masahiko Yoshino (Tokyo Institute of Technology), Hiroaki Nishiyama (Yamagata University), "Ultrahigh Aspect-ratio Nano-gratings of Ti-Al Alloy Fabricated by a Combined Top-down Bottom-up Approach", 2014 Functional Nanomaterials: Synthesis, Properties and Applications — Nanomanufacturing II & Fabrication and Fundamentals I, TMS2014, San Diego, USA, 2014.2.16-20.

• Koretaka Yuge (Kyoto University), Yuichiro Koizumi, Koji Hagihara (Osaka University), Takayoshi Nakano (Osaka University), Kyosuke Kishida (Kyoto University), Haruyuki Inui (Kyoto University), "Interface Segregation and Cohesive Energy for MoSi₂-based Alloys: A First-principles Study", Solid-state Interfaces III: Toward an Atomisticscale Understanding of Structure, Properties, and Behavior through Theory and Experiment — Interface Morphology and Stability, TMS2014, San Diego, USA, 2014.2.16-20.

• Toshihiro Yamazaki (D1), Yuichiro Koizumi, Akihiko Chiba, Koji Hagihara (Osaka University), Takayoshi Nakano (Osaka University), Koretaka Yuge (Kyoto University), Kyosuke Kishida (Kyoto University), Haruyuki Inui (Kyoto University), "Interfacial Segregation in MoSi₂-Based Duplex Alloys: A Phase-field Study Combined with First-principles Calculation", Computational Thermodynamics and Kinetics — First-principles Calculations, TMS2014, San Diego, USA, 2014.2.16-20.

• Kenta Yamanaka, Manami Mori (Sendai National College of Technology), Akihiko Chiba, "Nanoscale Phase Decomposition and Mechanical Properties of Biomedical Co–Cr–Mo Alloys with Nitrogen Addition", Advanced Materials in Dental and Orthopedic Applications — Physical and Mechanical Properties of Orthopedic/Dental Materials, TMS2014, San Diego, USA, 2014.2.16-20.

• Akihiko Chiba, Shingo Kurosu, Yuichiro Koizumi, Yunping Li, "Microstructure and mechanical properties evolution of biomedical Co-Cr-Mo alloys produced by EBM method during novel heat treatment", Innovative Research for Biosis-Abiosis Intelligent Interface Symposium/The 5th International Symposium for Interface Oral Health Science, Sendai, Japan, 2014.1.20-21. [Invited]

• Kenta Yamanaka, Manami Mori (Sendai National College of Technology), Akihiko Chiba, "Effects of carbon addition on mechanical properties and microstructures of Ni-free Co-Cr-W-based dental alloys", Innovative Research for Biosis-Abiosis Intelligent Interface Symposium/The 5th International Symposium for Interface Oral Health Science, Sendai, Japan, 2014.1.20-21. [Poster]

• P. Tunthawiroon (D1), Y. P. Li, N. Tang, A. Chiba, "Thermo-mechanical fatigue behavior of Co-29Cr-6Mo alloys under Al die casting condition", 5th International Symposium on Advanced Ceramics (ISAC-5) held in conjunction with the 3rd International Symposium on Advanced Synthesis and Processing Technology for Materials (ASPT2013), Hubei, China, 2013.12.9-12.

• Fenglin Wang (D2), Yunping Li, Yuichiro Koizumi, Akihiko Chiba, "Study on the formation of TiC particles and its effects in dispersion strengthened Cu alloys", 5th International Symposium on Advanced Ceramics (ISAC-5) held in conjunction with the 3rd International Symposium on Advanced Synthesis and Processing Technology for Materials (ASPT2013), Hubei, China, 2013.12.9-12.

• Kenta Yamanaka, Manami Mori (NISSAN ARC, LTD.), Akihiko Chiba, "Nitrogen-enhanced nanostructural evolution and its effect on phase stability in biomedical Co-Cr-Mo alloys", Biomimetic Materials, Nanostructured Biomaterials & Biological Interactions, THERMEC' 2013, Las Vegas, USA, 2013.12.2-6. [Invited]

• Yuichiro Koizumi, Koretaka Yuge (Kyoto Univ.), Toshihiro Yamazaki (D1), Akihiko Chiba, Koji Hagihara (Osaka Univ.), Takayoshi Nakano (Osaka Univ.), Kyosuke Kishida (Kyoto Univ.), Haruyuki Inui (Kyoto Univ.), "Phase-field simulation of microstructural evolution and interfacial segregation in MoSi₂-based duplex disilicides for ultrahigh--temperature structural application", High & Ultra High Temperature Materials (Intermetallics, Superalloys & Refractory Metals), THERMEC' 2013, Las Vegas, USA, 2013.12.2-6. [Invited]

• Toshihiro Yamazaki (D1), Yuichiro Koizumi, Akihiko Chiba, Koji Hagihara (Osaka Univ.), Takayoshi Nakano (Osaka Univ.), Koretaka Yuge (Kyoto Univ.), Kyosuke Kishida (Kyoto Univ.), Haruyuki Inui (Kyoto Univ.), "Phase-field simulation of microstructural evolution and interfacial segregation in MoSi₂-based duplex disilicides for ultrahigh--temperature structural application", Student Poster Session, THERMEC' 2013, Las Vegas, USA, 2013.12.2-6. [Poster]

• Jeon-Young Song (D3), Hiroaki Matsumoto, Yuichiro Koizumi, Akihiko Chiba, "Effect of cobalt addition on the ductility and deformation behavior of polycrystalline nickel--based superalloy", Student Poster Session, THERMEC' 2013, Las Vegas, USA, 2013.12.2-6. [Poster]

• Shi-Hai Sun (D2), Yuichiro Koizumi, Tsuyoshi Saito, Yun-Ping Li, Akihiko Chiba, "Effect of Build Angle on Tensile Property of Inconel 718 Alloy Fabricated by Electron Beam Melting (EBM) Process", Special Session of Tenth International Conference on Fluid Dynamics (ICFD2013) OS5: "Global/Local Innovations for Next Generation Automobiles", Sendai, 2013.11.26.

• Yunping Li, Lu Nie (M2), Akihiko Chiba, "Fabrication of W-Cu Composites with High Physical Properties through Co-reduction Method", 2nd International Conference Powder Metallurgy in Asia, Changsha, China, 2013.11.3-6. [Poster]

• Shi-Hai Sun (D2), Yuichiro Koizumi, Tsuyoshi Saito, Yun-Ping Li, Akihiko Chiba, "EFFECT OF BUILD ANGLE ON TENSILE PROPERTY OF INCONEL 718 DURING ELECTRON BEAM MELTING (EBM) PROCESS", The 3rd Russia-Japan Workshop "Problems of advanced materials", Novosibirsk, Russia, 2013.10.8-10. [Poster]

• J. Y. Song (D3), S. Sato (Tohoku Univ.), Y. Koizumi, A. Chiba, "INFLUENCE OF COBALT ADDITION ON THE RECRYSTALLIZATION AND TENSILE BEHAVIOR OF INCONEL 713C NICKEL-BASED SUPERALLOY", The 3rd Russia-Japan Workshop "Problems of advanced materials", Novosibirsk, Russia, 2013.10.8-10. [Poster]

• Yunping Li, Yujie Cui (D1), Yuichiro Koizumi, Akihiko Chiba, "Influence of Twinning Boundaries on Damping Capacity of Mg Alloy", 3rd International Conference on Materials and Products Manufacturing Technology, Changsha, China, 2013.9. [Keynote]

• Kenta Yamanaka (D3), Manami Mori (NISSAN ARC, LTD.), Akihiko Chiba, "Nanoscale precipitation in biomedical Co–Cr alloys with nitrogen addition", 8th International Workshop on Biomaterials in Interface Sciencein conjunction with Innovative Research for Biosis-Abiosis Intelligent Interface Summer Seminar 2013, Zao, Miyagi, Japan, 2013.8.29-30.

• Y. Chen (D3), S. Kurosu (Iwate Indus. Research Inst.), Y. P. Li, K. Yamanaka (D3), Y. Koizumi, A. Chiba, "Effects of sigma phase and carbide on the wear behavior of biomedical Co–Cr–Mo alloys in Hanks’ solution", 8th International Workshop on Biomaterials in Interface Sciencein conjunction with Innovative Research for Biosis-Abiosis Intelligent Interface Summer Seminar 2013, Zao, Miyagi, Japan, 2013.8.29-30.

• Jeon-Young Song (D2), Yuichiro Koizumi，Akihiko Chiba, "Effect of cobalt addition on the ductility and deformation behavior of polycrystalline Ni-based superalloy", Excellent Graduate Schools 2012 Annual Meeting (in conjunction with) Japan-Russia Workshop on Advanced Materials Synthesis Process and Nanostructure, Hotel Hananoyu, Akiu, Sendai, Japan, 2013.3. [Poster]

• Fenglin Wang (D1), Yunping Li, Yuichiro Koizumi, Akihiko Chiba, "Study on the electrical conductivity and strength of Cu-based alloy", Excellent Graduate Schools 2012 Annual Meeting (in conjunction with) Japan-Russia Workshop on Advanced Materials Synthesis Process and Nanostructure, Hotel Hananoyu, Akiu, Sendai, Japan, 2013.3. [Poster]

• Huakang Bian (D1), Yunping Li, Yuichiro Koizumi, Akihiko Chiba, "High Temperature Strength of Novel Co-Ni Based Superalloy　Simultaneously Strengthened by Suzuki Effect and γ’ Precipitation", Excellent Graduate Schools 2012 Annual Meeting (in conjunction with) Japan-Russia Workshop on Advanced Materials Synthesis Process and Nanostructure, Hotel Hananoyu, Akiu, Sendai, Japan, 2013.3. [Poster]

• Shi-hai Sun (D1), Shingo kurosu, Yuichiro Koizumi, Yunping Li, Akihiko Chiba, "Microstructure and creep property of Co-28Cr-6Mo-0.23C-0.17N alloy fabricated by electron beam melting (EBM)", Excellent Graduate Schools 2012 Annual Meeting (in conjunction with) Japan-Russia Workshop on Advanced Materials Synthesis Process and Nanostructure, Hotel Hananoyu, Akiu, Sendai, Japan, 2013.3. [Poster]

• Yan Chen (D2), Shingo kurosu, Yunping Li, Ning Tang, Yuichiro Koizumi, Akihiko Chiba, "Effects of phase constitution and carbide morphology on wear behavior of biomedical CoCrMo alloys under lubricated condition", Excellent Graduate Schools 2012 Annual Meeting (in conjunction with) Japan-Russia Workshop on Advanced Materials Synthesis Process and Nanostructure, Hotel Hananoyu, Akiu, Sendai, Japan, 2013.3. [Poster]

• Kenta Yamanaka (D3), Manami Mori (NISSAN ARC, LTD.), Koji Kuramoto, Emi Onodera, Akihiko Chiba, "Development of hot-rolled Co–Cr–W alloys for CAD/CAM dentistry", Biological Materials Science Symposium, TMS2013, San Antonio, Texas, USA, 2013.3.3-7. [Poster]

• Yuichiro Koizumi, Toshihiro Yamazaki (M2), Akihiko Chiba, Hiroaki Nishiyama (Hokkaido Univ.), "Control of γ-TiAl Lamellae Precipitation from Supersaturated α2-Ti3Al Single Crystal by Local Plastic Straining", Phase Transformation and Microstructural　Evolution: Non-conventional Phase　Transformation Paths: Part Ⅲ, TMS2013, San Antonio, Texas, USA, 2013.3.3-7.

• Takuya Mitsunobu (M1), Yuichiro Koizumi, Byoung-Soo Lee, Akihiko Chiba, "Strain-Induced Martensitic Transformation in Tensile/Compression Cyclic Deformations of Biomedical Co-Cr-Mo-N Alloy", Phase Transformation and Microstructural　Evolution: Non-conventional Phase　Transformation Paths: Part Ⅲ, TMS2013, San Antonio, Texas, USA, 2013.3.3-7.

• Toshihiro Yamazaki (M2), Yuichiro Koizumi, Akihiko Chiba, Koji Hagihara (Osaka Univ.), Takayoshi Nakano (Osaka Univ.), Koretaka Yuge (Kyoto Univ.), Kyosuke Kishida (Kyoto Univ.), Haruyuki Inui (Kyoto Univ.), "Effects of Additive Elements on Lamellar Structure Formation in C40-NbSi₂/C11_b-MoSi₂ Duplex Silicide: A First Principles Based Phase-Field Study", Computational Thermodynamics and Kinetics: Phase Field Simulations, TMS2013, San Antonio, Texas, USA, 2013.3.3-7.

• Koretaka Yuge (Kyoto Univ.), Yuichiro Koizumi, Koji Hagihara (Osaka Univ.), Takayoshi Nakano (Osaka Univ.), Koretaka Yuge (Kyoto Univ.), Kyosuke Kishida (Kyoto Univ.), Haruyuki Inui (Kyoto Univ.), "Interface Structure and Segregation for MoSi₂-NbSi₂ Alloys: A First Principles Study", Computational Thermodynamics and Kinetics: First-principles Thermodynamics, TMS2013, San Antonio, Texas, USA, 2013.3.3-7.

• Toshihiro Yamazaki MRS Fall meeting 2012

• Yuichiro Koizumi MRS Fall meeting 2012

• Yunping Li, Hiroaki Matsumoto, Yuichiro Koizumi, Akihiko Chiba, "Grain Refinement due to Complex Twin Formations in Rapid Hot Forging of Magnesium Alloy", Frontier 2012, Université de Rennes, France, 2012.12.01-2012.12.06.

• Hiroaki Matsumoto, Kazuki Yoshida (M2), Akihiko Chiba, "Low-temperature and High-strain Rate Superplasticity in Ti-6Al-4V Alloy", Summit of Materials Science: SMS2012, Sendai, Japan, 2012.11.27–2012.11.30.

• K. Yamanaka (D3), M. Mori (NISSAN ARC, LTD.), K. Kuramoto, E. Onodera, A. Chiba, "Development of new Co–Cr–W-based alloys for CAD/CAM dentistry: Alloy design and effects of thermomechanical processing", Summit of Materials Science: SMS2012, Sendai, Japan, 2012.11.27–2012.11.30.

• Toshihiro Yamazaki (M2), Yuichiro Koizumi, Akihiko Chiba, Koji Hagihara (Osaka Univ.), Takayoshi Nakano (Osaka Univ.), Koretaka Yuge (Kyoto Univ.), Kyosuke Kishida (Kyoto Univ.), Haruyuki Inui (Kyoto Univ.), "Phase-Field Study on the Segregation Mechanism of Additive Elements in NbSi₂/MoSi₂ Duplex Silicide" Summit of Materials Science: SMS2012, Sendai, Japan, 2012.11.27–2012.11.30.

• Yan Chen (D2), Shingo Kurosu, Akihiko Chiba, "Wear Behavior of Meta-on-Metal Hip Joints with Different Clearances by Using a Hip Joint Simulator", Summit of Materials Science: SMS2012, Sendai, Japan, 2012.11.27–2012.11.30.

• A. Chiba, K. Yamanaka (D3), Y. Li, Y. Koizumi, H. Matsumoto, "Ultrafine Grain Refinement due to Novel Dynamic Recrystallization Mechanisms in Co-29Cr-6Mo Alloy with Extremely Low Stacking Fault Energy at Elevated Temperatures", The 5th International Symposium on Designing, Processing and Properties of Advanced Engineering Materials (ISAEM-2012), Toyohashi, Japan, 2012.11.5–2012.11.8. [Invited]

• H. Matsumoto, K. Yoshida (M2), A. Chiba, "New Typed Deformation Process of "α′ Processing" in Industrial Ti Alloys", The 5th International Symposium on Designing, Processing and Properties of Advanced Engineering Materials (ISAEM-2012), Toyohashi, Japan, 2012.11.5–2012.11.8. [Invited]

• R. Kondo (Tokyo Medical and Dental Univ.), N. Nomura, H. Matsumoto, H. Doi, Y. Tsutsumi, A. Chiba, T. Hanawa, "Effect of Heat Treatment on the Mechanical Properties of Zr-14Nb Preventing Artifact in MRI", Poster session, The 5th International Symposium on Designing, Processing and Properties of Advanced Engineering Materials (ISAEM-2012), Toyohashi, Japan, 2012.11.5–2012.11.8.

• Akihiko Chiba, Shingo Kurosu, Yuichiro Koizumi, Hiroaki Matsumoto, Yungping Li, "Mechanical Properties and Microstructures of Biomedical Grade Co-Cr-Mo Alloy Produced by Additive Manufacturing Technique Using EBM Method", Poster session, ISTA (International Society for Technology in Arthroplasty) 25th Annual Congress, Sydney, Australia, 2012.10.3-2012.10.6.

• Yan Chen (D2), Shingo Kurosu, Yungping Li, Hiroaki Matsumoto, Yuichiro Koizumi, Akihiko Chiba, "Wear Behavior of Metal-on-Metal Hip Joints With Different Clearances by Using an ISO Hip Joint Simulator and Evaluation of the Optimal Clearance", Poster session, ISTA (International Society for Technology in Arthroplasty) 25th Annual Congress, Sydney, Australia, 2012.10.3-2012.10.6.

• Kenta Yamanaka (D2), Manami Mori (NISSAN ARC, LTD.), Akihiko Chiba, Yuichiro Koizumi and Shingo Kurosu, "Nanostructured Co–Cr–Mo Based Alloys for Orthopedic Implant Applications", Nanocomposites: Special emphasis in orthopedics, The 9th World Biomaterials Congress (WBC), Chengdu, China, 2012.6.1-2012.6.5.

• Yan Chen (D2), Shingo Kurosu, Yunping Li, H. Kim, H. Matsumoto, Y. Koizumi, Akihiko Chiba, "Comparative Analysis of Wear Behavior from Total Co-Cr-Mo Hip Joints of Different Clearances Tested on a Mechanical Simulator", Poster Session, The 9th World Biomaterials Congress (WBC), Chengdu, China, 2012.6.1-2012.6.5.

• Atsushi Takaichi (Tokyo Medical and Dental Univ.), Suyalatu, Naoyuki Nomura, Takayuki Nakamoto, Hisashi Doi, Yusuke Tsutsumi, Shingo Kurosu, Akihiko Chiba, Noriyuki Wakabayashi, Yoshimasa Igarashi, Takao Hanawa, "Anisotoropy of Microstructures and Mechanical Properties of Co-29Cr-6Mo Alloy Fabricated By Selective Laser Melting Process", Poster Session, The 9th World Biomaterials Congress (WBC), Chengdu, China, 2012.6.1-2012.6.5.

• Suyalatu (Tokyo Medical and Dental Univ.), Naoyuki Nomura, Atsushi Takaichi, Takayuki Nakamoto, Hisashi Doi, Yusuke Tsutsumi, Shingo Kurosu, Akihiko Chiba, Noriuki Wakabayashi, Yoshimasa Igarashi, Takao Hanawa, "Microstructure and Mechanical Properties of Co-33Cr-5Mo-0.3N Alloys Fabricated by Selective Laser Melting Process for Dental Applications", Poster Session, The 9th World Biomaterials Congress (WBC), Chengdu, China, 2012.6.1-2012.6.5.

• Koretaka Yuge, Yuichiro Koizumi, Koji Hagihara, Kyosuke Kishida and Haruyuki Inui, Development of MoSi₂-based Ultra-High-Temperature Materials Through Interface Engineering　–　Combined Study of Experiment and Theoretical Calculation–,Kyoto Workshop on High Temperature and Structural Materials, June 1 st, 2012,Kyoto University Clock Tower Centennial Hall International Conference Hall I, 2012.6.1

• Yuichiro Koizumi, Toshihiro Yamazaki (M1), Akihiko Chiba, Koji Hagihara (Osaka Univ.), Takayoshi Nakano (Osaka Univ.), Koretaka Yuge (Kyoto Univ.), Haruyuki Inui (Kyoto Univ.), "Phase-Field Simulation of Segregation to Lamellar Interface in Refractory NbSi₂/MoSi₂ Duplex Silicide", Solid-State Interfaces II: Toward an Atomistic-Scale Understanding of Structure, Properties, and Behavior through Theory and Experiment: Non-metallic Interfaces, Electronic Structures, TMS2012, Orlando, FL, USA, 2012.3.11-2012.3.15.

• Kenta Yamanaka (D2), Manami Mori (NISSAN ARC, LTD.), Akihiko Chiba, "Effects of Nitrogen Addition on Mechanical Properties of Hot-Forged Biomedical Co–Cr–Mo Alloys with Ultrafine–Grained Microstructures", Biological Materials Science Symposium: Poster Session, TMS2012, Orlando, FL, USA, 2012.3.11-2012.3.15.

• Byoung-Soo Lee (D3), Shou Suzuki (M2), Hiroaki Matsumoto, Yuichro Koizumi, Akihiko Chiba, "Micromechanical Analysis of Strain-Induced Martensitic Transformation in Biomedical Co-Cr-Mo-N Alloy", Biological Materials Science Symposium: Biological and Bio-Inspired Materials II: Hard Biomaterials, TMS2012, Orlando, FL, USA, 2012.3.11-2012.3.15.

• Julien Favre (D3), Yuichiro Koizumi, Akihiko Chiba, Damien Fabregue (INSA de Lyon), Eric Maire (INSA de Lyon), "Recrystallization of L-605 Cobalt Superalloy during Hot-Working Process", 3rd International Symposium on High Temperature Metallurgical Processing: Alloy and Materials Preparation, TMS2012, Orlando, FL, USA, 2012.3.11-2012.3.15.

• Ning Tang (D3), Yunping Li, Shingo Kurosu, Hiroaki Matsumoto, Yuichiro Koizumi, Akihiko Chiba, "Interfacial Reaction between Co-Based Alloy and Molten Al", Symposium: Fatigue and Corrosion Damage in Metallic Materials: Fundamentals, Modeling and Prevention: Fatigue and Corrosion Interaction and Materials Corrosion, TMS2012, Orlando, FL, USA, 2012.3.11-2012.3.15.

• Yuichiro Koizumi, Sho Suzuki (M2), Takuma Ohtomo, Shingo Kurosu, Yungping Li, Hiroaki Matsumoto, Akihiko Chiba, "Phase-Field Simulation of Segregation to Stacking Fault and Twin Boundaries in Co-based alloys", Symposium: Computational Thermodynamics and Kinetics, TMS2012, Orlando, FL, USA, 2012.3.11-2012.3.15.

• Julien Favre (D3), Shingo Kurosu, Yunping Li, Hiroaki Matsumoto, Akihiko Chiba, Damien Fabregue and Eric Maire, "Dynamic recrystallization of biomedical Co-Cr-W-Ni (L-605) alloy", 4th French Research Organizations-Tohoku University Joint Workshop on Frontier Materials and Processes (Frontier2011), Sendai, Miyagi, Japan, 2011.12.4-2011.12.7.

• Kenta Yamanaka (D2), Manami Mori (NISSAN ARC, LTD.), Yunping Li, Yuichiro Koizumi, Akihiko Chiba, "Dynamic strain aging in biomedical-grade Co-Cr-Mo alloys with nitrogen addition", 4th French Research Organizations-Tohoku University Joint Workshop on Frontier Materials and Processes (Frontier2011), Sendai, Miyagi, Japan, 2011.12.4-2011.12.7.

• Hiroaki Matsumoto, Liu Bin, Yunping Li, Sang-Hak Lee, Yoshiki Ono, Akihiko Chiba, "New-type of Ti-6Al-4V alloy with ultra-fine grained microstructure for enhancing superplasticity", 4th French Research Organizations-Tohoku University Joint Workshop on Frontier Materials and Processes (Frontier2011), Sendai, Miyagi, Japan, 2011.12.4-2011.12.7.

• Yunping Li, Ning Tang (D3), Hiroaki Matsumoto, Akihiko Chiba, "Hot working behavior of Co-29Cr-6Mo-0.16N alloy", 4th French Research Organizations-Tohoku University Joint Workshop on Frontier Materials and Processes (Frontier2011), Sendai, Miyagi, Japan, 2011.12.4-2011.12.7.

• N. Tang (D3), Y.P. Li, S. Kurosu, H. Matsumoto, Y. Koizumi, A. Chiba, "Effect of gas nitriding on corrosion resistance of a Co-Cr-Mo alloy to liquid Al", International Symposium of Materials Integration, Sendai, Miyagi, Japan, 2011.12.1-2011.12.2.

• Kenta Yamanaka (D2), Manami Mori (NISSAN ARC, LTD.), Yunping Li, Yuichiro Koizumi, Akihiko Chiba, "Plastic deformation behavior of biomedical Co-Cr-Mo-based alloys with interstitial nitrogen", International Symposium of Materials Integration, Sendai, Miyagi, Japan, 2011.12.1-2011.12.2.

• Y. Chen (D1), S. Kurosu, Y.P. Li, N. Tang, H. Matsumoto, Y. Koizumi, A. Chiba, "Pin-on-disk Wear behavior in Biological Environment of High Carbon and Low Carbon Forged Co-27Cr-5Mo-0.16N Alloys", International Symposium of Materials Integration, Sendai, Miyagi, Japan, 2011.12.1-2011.12.2.

• Jeon-Young Song (D1), Hiroaki Matsumoto, Yuichiro Koizumi, Akihiko Chiba, "On the tensile properties at high temperature of Inconel 713C based alloys", International Symposium of Materials Integration, Sendai, Miyagi, Japan, 2011.12.1-2011.12.2.

• Byoung-Soo Lee (D3), Shou Suzuki (M2), Hiroaki Matsumoto, Yuichiro Koizumi, Akihiko Chiba, "Geometrical Necessary Dislocation Distribution near Strain- Induced Martensite on the Twin Boundary of Bio-Medical Co-Cr-Mo-N alloy using EBSP-Wilkinson Method", International Symposium of Materials Integration, Sendai, Miyagi, Japan, 2011.12.1-2011.12.2.

• Kenta Yamanaka (D2), Manami Mori (NISSAN ARC, LTD.), Akihiko Chiba, "Enhanced structural refinement by dynamic recrystallization in biomedical Co–Cr–Mo alloys", Workshop on Materials Science in Tianjin University Day, Sendai, Miyagi, Japan, 2011.10.11.

• Yuichiro Koizumi, Sho Suzuki (M2), Takuma Ohtomo, Shingo Kurosu, Yungping Li, Hiroaki Matsumoto, Akihiko Chiba, "Phase-Field Simulation of Suzuki Segregation in Co-alloys", Workshop on Materials Science in Tianjin University Day, Sendai, Miyagi, Japan, 2011.10.11.

• Yunping Li, Shingo Kurosu, Hiroaki Matsumoto, Yuichiro Koizumi, Akihiko Chiba, "Influence of N addition in stabilizing the γ phase of biomedical Co-29Cr-6Mo alloy", The 6th International Workshop on Nano-, Bio- and Amorphous Materials, Miyagi, Japan, 2011.8.8-2011.8.9.

• Kenta Yamanaka (D2), Manami Mori (NISSAN ARC, LTD.), Akihiko Chiba, "Mechanical properties of hot-forged Co–Cr–Mo alloys with ultrafine-grained microstructures", The 6th International Workshop on Nano-, Bio- and Amorphous Materials, Miyagi, Japan, 2011.8.8-2011.8.9.

• T. Akanuma (M2), H. Matsumoto, A. Chiba, I. Inagaki (Sumitomo Metal Industries, LTD.), Y. Shirai (Sumitomo Metal Industries, LTD.), T. Maeda (Sumitomo Metal Industries, LTD.), "Construction of Processing maps with high precision for Ti-10V-2Fe-3Al alloy", The 12th World Conference on Titanium, Beijing, China, 2011.6.19-2011.6.24

• H. Matsumoto, H. Yoneda, Y. Li, B. Liu, A. Chiba, "Mechanical Anisotropy of Ti-6Al-4V alloy with α' martensite microstructure", The 12th World Conference on Titanium, Beijing, China, 2011.6.19-2011.6.24.

• Kenta Yamanaka (D2), Manami Mori (NISSAN ARC, LTD.), Akihiko Chiba, "Dynamic recrystallization and formation of ultrafine-grained microstructures in biomedical Co-29Cr-6Mo alloy", Baltic Boat Conference 2011 (BBC11), Stockholm-Tallinn, Sweden-Estonia, 2011.6.16-2011.6.19.

• Akihiko Chiba, "Deformation behavior of biomedical Co-Cr-Mo alloy", The 11th International Symposium On Biomaterials 2011, Bordeaux Ballroom, Novotel, Korea, 2011.5.30.

• Yuichiro Koizumi, Shou Suzuki (M2), Takuma Otomo*, Shingo Kurosu, Yunping Li, Hiroaki Matsumoto, Akihiko Chiba, "Phase-Field Simulation of Suzuki Segregation in Co–Ni-based Superalloy", The 8th International Workshop on Intermetallic and Advanced Materials, Changsha, Hunan, China, 2011.3.10-2011.3.13.

• Y. Koizumi, S. Suzuki (M1), T. Otomo (D3), S. Kurosu, Y.P. Li, H. Matsumoto, A. Chiba, "PHASE-FIELD SIMULATION OF SEGREGATION TO STACKING FAULT (SUZUKI EFFECT) IN Co-Ni-BASED SUPERALLOY", Symposium: Computational Thermodynamics and Kinetics, TMS2011, San Diego, USA, 2011.2.28-2011.3.3.

• Hiroaki Matsumoto, Shingo Kurosu, Byong-soo Lee, Yunping Li, Yuichiro Koizumi, Akihiko Chiba, "Deformation behavior of biomedical Co-Cr-Mo-alloy", TMS2011, San Diego, USA, 2011.2.28-2011.3.3.

• Yuichiro Koizumi, Samuel M. Allen (MIT, USA), Masayuki Ouchi (Osaka U.), Yoritoshi Minamino (Osaka U.), "Evaluation of Ordering Mobility from Antiphase Domain Growth Rate in Fe3Al using Phase- Field Simulation", Symposium:Hume-Rothery Symposium Thermodynamics and Diffusion Coupling in Alloys - Application Driven Science, TMS2011, San Diego, USA, 2011.2.28-2011.3.3. [invited]

• Takuma Otomo (D3), Shingo Kurosu, Yunping Li, Hiroaki Matsumoto, Shigeo Sato, Yuichiro Koizumi, Kazuaki Wagatsuma, Akihiko Chiba, "Static recrystallization behavior of Co-Ni-Cr- Mo superalloy after cold rolling and subsequent heat treatment", TMS2011, San Diego, USA, 2011.2.28-2011.3.3.

• Hiroaki Matsumoto, Bin liu, Sang-Hak Lee, Yunping Li, Kazuhisa Sato, Yoshiki Ono, Akihiko Chiba, TMS2011, San Diego, USA, 2011.2.28-2011.3.3.

• H. Matsumoto, K. Sato, B. Liu, Y. Li, Y. Koizumi, T. J. Konno, A. Chiba, "Deformation mode in Ti-6Al-4V alloy with the bimodal (α+α') microstructure", The 8th International Workshop on Intermetallic and Advanced Materials, Changsha, Hunan, China, 2011.3.10-2011.3.13.

• Y. Koizumi, T. Yokoi (Osaka U.), M. Ouchi (Osaka U.), Y. Minamino (Osaka U.), M. Yoshiya (Osaka U.) and S.M. Allen (MIT, USA), "Phase-Field Simulation of Antiphase Boundary Migration in Intermetallic Compounds with Solute and Vacancy Segregation", Materials Research Society 2010 Fall Meeting, Boston, MA, USA, 2010.12.2.

• Y. Koizumi, S. M. Allen (MIT, USA), M. Ouchi (Osaka U.) and Y. Minamino (Osaka U.), "Phase-field Simulation of Antiphase Boundary Migration in Fe3Al with Vacancy and Solute segregation", PTM2010, Avignon, France, 2010.6.6-2010.6.11.

• Lee, Byoung soo (D2), Hiroaki Matsumoto, Akihiko Chiba, "The role of annealing twin during tensile deformation of Co-Cr-Mo-N alloy", IMR/KU Joint seminar, Seoul, Korea, 2010.08.26-2010.8.27.

• H. Matsumoto, H. Yoneda, K. Sato, T. J. Konno, S. Kurosu, D. Fabregue, E. Maire, A. Chiba, "Microstructure and Mechanical Properties of α' Martensite Type Ti-V-Al Alloy after Cold- or Hot Working Process", TMS2010, Seattle, USA, 2010.2.14-2010.2.18.