研究業績｜千葉研究室｜東北大学金属材料研究所加工プロセス工学研究部門

研究業績

学術論文

2023

2022

2021

Cheng Yang, Huakang Bian, Kenta Aoyagi, Yuichiro Hayasaka, Kenta Yamanaka, Akihiko Chiba
Synergetic strengthening in HfMoNbTaTi refractory high-entropy alloy via disordered nanoscale phase and semicoherent refractory particle
Materials & Design, 212 (2021) 110248.
doi:10.1016/j.matdes.2021.110248

Yufan Zhao, Yujie Cui, Yusaku Hasebe, Huakang Bian, Kenta Yamanaka, Kenta Aoyagi, Takehito Hagisawa, Akihiko Chiba
Controlling factors determining flowability of powders for additive manufacturing: A combined experimental and simulation study
Powder Technology, 393 (2021) 482-493.
doi:10.1016/j.powtec.2021.08.006

Yujie Cui, Yufan Zhao, Haruko Numata, Kenta Yamanaka, Huakang Bian, Kenta Aoyagi, Akihiko Chiba
Effects of process parameters and cooling gas on powder formation during the plasma rotating electrode process
Powder Technology, 393 (2021) 301-311.
doi:10.1016/j.powtec.2021.07.062

Phacharaphon Tunthawiroon, Mettaya Kitiwan, Kasama Srirussamee, Yunping Li, Kenta Yamanaka, Akihiko Chiba
Characterization of oxide films on wrought Co–Cr–Mo–xSi alloys exposed to high-temperature oxidation
Corrosion Science, 191 (2021) 109753.
doi:10.1016/j.corsci.2021.109753

Akihiko Chiba, Yohei Daino, Kenta Aoyagi, Kenta Yamanaka
Smoke suppression in electron beam melting of inconel 718 alloy powder based on insulator–metal transition of surface oxide film by mechanical stimulation
Materials, 14 (2021) 4662. (Invited)
doi:10.3390/ma14164662

Jiayu Sun, Shaoyun Zhou, Kenta Yamanaka, Yuji Ichikawa, Hiroki Saito, Kazuhiro Ogawa, Akihiko Chiba
Thermal effects in Sn coating on a carbon fiber-reinforced plastic by cold spraying
Journal of Thermal Spray Technology, 30 (2021) 1254–1261. (Invited)
doi:10.1007/s11666-021-01208-9

Qinqin Wei, Guoqiang Luo, Rong Tu, Jian Zhang, Qiang Shen, Yujie Cui, Yunwei Gui, Akihiko Chiba
High-temperature ultra-strength of dual-phase Re_0.5MoNbW(TaC)_0.5 high-entropy alloy matrix composite
Journal of Materials Science and Technology, 84 (2021) 1−9.
doi:10.1016/j.jmst.2020.12.015

Tack Lee, Kenta Aoyagi, Huakang Bian, Kenta Yamanaka, Shigeo Sato, Akihiko Chiba
The microstructure and mechanical properties of selective electron beam melting manufactured 9–12Cr ferritic/martensitic steel using N- and Ar-atomized powder
Additive Manufacturing, 45 (2021) 102075.
doi:10.1016/j.addma.2021.102075

Kenta Yamanaka, Manami Mori, Kazuo Yoshida, Yusuke Onuki, Shigeo Sato, Akihiko Chiba
Surface evolution and corrosion behaviour of Cu-doped carbide-reinforced martensitic steels in a sulfuric acid solution
npj Materials Degradation, 5 (2021) 43.
doi:10.1038/s41529-021-00187-0

Rui Luo, Yun Cao, Huakang Bian, Leli Chen, Ching Tun Peng, Fuyang Cao, Lingxiao Ouyang, Yu Qiu, Yanjin Xu, Aikihiko Chiba, Xiaonong Cheng
Hot workability and dynamic recrystallization behavior of a spray formed 7055 aluminum alloy
Materials Characterization, 178 (2021) 111203.
doi:10.1016/j.matchar.2021.111203

Jiaxiang Li, Kenta Yamanaka, Akihiko Chiba
Calculation-driven design of off-equiatomic high-entropy alloys with enhanced solid-solution strengthening
Materials Science and Engineering A, 817 (2021) 141359.
doi:10.1016/j.msea.2021.141359

Seungkyun Yim, Huakang Bian, Kenta Aoyagi, Akihiko Chiba
Effect of multi-stage heat treatment on mechanical properties and microstructure transformation of Ti–48Al–2Cr–2Nb alloy
Materials Science and Engineering A, 816 (2021) 141321.
doi:10.1016/j.msea.2021.141321

Yujie Cui, Kenta Aoyagi, Huakang Bian, Yuichiro Hayasaka, Akihiko Chiba
Effects of the aluminum concentration on twin boundary motion in pre-strained magnesium alloys
Journal of Materials Science and Technology, 73 (2021) 116−127.
doi:10.1016/j.jmst.2020.07.027

Yuchao Lei, Kenta Aoyagi, Kinya Aota, Kosuke Kuwabara, Akihiko Chiba
Critical factor triggering grain boundary cracking in non-weldable superalloy Alloy713ELC fabricated with selective electron beam melting
Acta Materialia, 208 (2021) 116695.
doi:10.1016/j.actamat.2021.116695

山中謙太
塑性加工からAdditive Manufacturingへ ―加工プロセスに基づく組織・特性制御―
ぷらすとす, 4 (2021) 231-236. (Invited)
doi:10.32277/plastos.4.40_231

Yunwei Gui, Lingxiao Ouyanga, Yujie Cui, Huakang Bian, Quanan Li, Akihiko Chiba
Grain refinement and weak-textured structures based on the dynamic recrystallization of Mg–9.80Gd–3.78Y–1.12Sm–0.48Zr alloy
Journal of Magnesium and Alloys, 9 (2021) 456−466.
doi:10.1016/j.jma.2020.06.001

Yunwei Gui, Yujie Cui, Huakang Bian, Quanan Li, Lingxiao Ouyang, Akihiko Chiba
Deformation behavior of Mg–5Y–2Nd–0.5Zr alloys with different Sm additions
Journal of Alloys and Compounds, 856 (2021) 158201.
doi:10.1016/j.jallcom.2020.158201

Yujie Cui, Kenta Aoyagi, Yuichiro Koizumi, Cheng Yang, Huakang Bian, Yuichiro Hayasaka, Tadashi Fujieda, Akihiko Chiba
Effect of niobium addition on tensile properties and oxidation resistance of a titanium-based alloy
Corrosion Science, 180 (2021) 109198.
doi:10.1016/j.corsci.2020.109198

Yufan Zhao, Yuichiro Koizumi, Kenta Aoyagi, Kenta Yamanaka, Akihiko Chiba
Thermal properties of powder beds in energy absorption and heat transfer during additive manufacturing with electron beam
Powder Technology, 381 (2021) 44−54.
doi:10.1016/j.powtec.2020.11.082

祝迫ひとみ, 奥川将行, 齊藤賢士, 小泉雄一郎, 千葉晶彦, 立谷雄一, 大沼学, 操谷欽吾
塑性加工されたFe-Cr-Co磁石合金におけるスピノーダル分解
鉄と鋼, 107 (2021) 146−153.
doi:10.2355/tetsutohagane.TETSU-2020-047

Biaobiao Yang, Chenying Shi, Xianjue Ye, Jianwei Teng, Ruilin Lai, Yujie Cui, Dikai Guan, Hongwei Cui, Yunping Li, Akihiko Chiba
Underlying slip/twinning activities of Mg-xGd alloys investigated by modified lattice rotation analysis
Journal of Magnesium and Alloys, in press.
doi:10.1016/j.jma.2021.06.008

Qian Chen, Yunhao Zhao, Seth Strayera, Yufan Zhao, Kenta Aoyagi, Yuichiro Koizumi, Akihiko Chiba, Wei Xiong, Albert. C. To
Elucidating the Effect of Preheating Temperature on Melt Pool Morphology Variation in Inconel 718 Laser Powder Bed Fusion via Simulation and Experiment
Additive Manufacturing, 37 (2021) 101642.
doi:10.1016/j.addma.2020.101642

Biaobiao Yang, Chenying Shi, Siyu Zhang, Jingjing Hua, Jianwei Teng, Yujie Cui, Yunping Li, Akihiko Chiba
Quasi-in-situ study on {10-12} twinning-detwinning behavior of rolled Mg-Li alloy in two-step compression (RD)-compression (ND) process
Journal of Magnesium and Alloys, in press.
doi:10.1016/j.jma.2021.01.006

Qian Chen, Yunhao Zhao, Seth Strayera, Yufan Zhao, Kenta Aoyagi, Yuichiro Koizumi, Akihiko Chiba, Wei Xiong, Albert. C. To
Elucidating the Effect of Preheating Temperature on Melt Pool Morphology Variation in Inconel 718 Laser Powder Bed Fusion via Simulation and Experiment
Additive Manufacturing, 37 (2021) 101642.
doi:10.1016/j.addma.2020.101642

Kenta Yamanaka, Asumi Kuroda, Miyu Ito, Manami Mori, Huakang Bian, Takahisa Shobu, Shigeo Sato, Akihiko Chiba
Quantifying the dislocation structures of additively manufactured Ti−6Al−4V alloys using X-ray diffraction line profile analysis
Additive Manufacturing, 37 (2021) 101678.
doi:10.1016/j.addma.2020.101678

2020

千葉晶彦
電子ビーム積層造形技術を用いた姿勢制御用チタン合金製スラスタの製造と材料特性
精密工学会誌, 86 (2020) 925−929.
doi:10.2493/jjspe.86.925

上田恭介, 石本卓也, 堤祐介, 池尾直子, 趙研, 山中謙太, 小幡亜希子, 野山義裕
企画にあたって特集「バイオアダプティブマテリアル～生体の仕組みに根差した金属系生体材料の設計～」
まてりあ, 59(11) (2020) 587.
doi:10.2320/materia.59.587

Yufan Zhao, Yujie Cui, Haruko Numata, Huakang Bian, Kimio Wako, Kenta Yamanaka, Kenta Aoyagi, Akihiko Chiba
Centrifugal granulation behavior in metallic powder fabrication by plasma rotating electrode process
Scientific Reports, 10(1) (2020) 18446.
doi:10.1016/j.addma.2020.101678

Yufan Zhao, Kenta Aoyagi, Kenta Yamanaka, Akihiko Chiba
Role of operating and environmental conditions in determining molten pool dynamics during electron beam melting and selective laser melting
Additive Manufacturing, 36 (2020) 101559.
doi:10.1016/j.addma.2020.101559

Kenta Yamanaka, Hiroshi Shiratori, Manami Mori, Kazuyo Omura, Tadashi Fujieda, Kosuke Kuwabara, Akihiko Chiba
Corrosion mechanism of an equimolar AlCoCrFeNi high-entropy alloy additively manufactured by electron beam melting
npj Materials Degradation, 4 (2019) 24.
doi:10.1038/s41529-020-00127-4

Yujie Cui, Yufan Zhao, Haruko Numata, Huakang Bian, Kimio Wako, Kenta Yamanaka, Kenta Aoyagi, Akihiko Chiba
Effects of plasma rotating electrode process parameters on the particle size distribution and microstructure of Ti-6Al-4V alloy powder
Powder Technology, 376 (2020) 363−372.
doi:10.1016/j.powtec.2020.08.027

Yujie Cui, Kenta Aoyagi, Yufan Zhao, Kenta Yamanaka, Yuichiro Hayasaka, Yuichiro Koizumi, Tadashi Fujieda, Akihiko Chiba
Manufacturing of a nanosized TiB strengthened Ti-based alloy via electron beam powder bed fusion
Additive Manufacturing, 36 (2020) 101472.
doi:10.1016/j.addma.2020.101472

Tin Tin Kyaw, Phacharaphon Tunthawiroon, Kannachai Kanlayasiri, Kenta Yamanaka, Akihiko Chiba
A study on wettability and formation of intermetallic phase between Co-based alloy and Sn-solder used as a potential under bump metallization for flip-chip packages
Intermetallics, 125 (2020) 106875.
doi:10.1016/j.intermet.2020.106875

Lingxiao Ouyang, Rui Luo, Yunwei Gui, Yun Cao, Leli Chen, Yujie Cui, Huakang Bian, Kenta Aoyagi, Kenta Yamanaka, Akihiko Chiba
Hot deformation characteristics and dynamic recrystallization mechanisms of a Co–Ni-based superalloy
Materials Science and Engineering A, 788 (2020) 139638.
doi:10.1016/j.msea.2020.139638

Kenta Yamanaka, Manami Mori, Kazuo Yoshida, Sandra Balvay, Daniel Hartmann, Damien Fabrègue, Akihiko Chiba
Preparation of high-strength Co–Cr–Mo alloy rods via hot-caliber rolling
Materialia, 12 (2020) 100729.
doi:10.1016/j.mtla.2020.100729

Jiaxiang Li, Kenta Yamanaka, Akihiko Chiba
Influence of interatomic interactions on the mechanical properties of face-centered cubic multicomponent Co–Ni–Cr–Mo alloys
Materialia, 12 (2020) 100742.
doi:10.1016/j.mtla.2020.100742

Qiang Li, Chao Cheng, Junjie Li, Ke Zhang, Kai Zhou, Masaaki Nakai, Mitsuo Niinomi, Kenta Yamanaka, Daixiu Wei, Akihiko Chiba, Takayoshi Nakano
Low Young’s Modulus and High Strength Obtained in Ti-Nb-Zr-Cr Alloys by Optimizing Zr Content
Journal of Materials Engineering and Performance, 29(5) (2020) 2871–2878.
doi:10.1007/s11665-020-04826-6

Yuchao Lei, Kenta Aoyagi, Yujie Cui, Dong-Soo Kang, Kosuke Kuwabara, Kinya Aota, Akihiko Chiba
Process optimization and mechanical property investigation of non-weldable superalloy Alloy713ELC manufactured with selective electron beam melting
Materials Science and Engineering A, 787 (2020) 139485.
doi:10.1016/j.msea.2020.139485

Yufan Zhao, Kenta Aoyagi, Yohei Daino, Kenta Yamanaka, Akihiko Chiba
Significance of powder feedstock characteristics in defect suppression of additively manufactured Inconel 718
Additive Manufacturing, 34 (2020) 101277.
doi:10.1016/j.addma.2020.101277

Y. Zhao, Y. Koizumi, K. Aoyagi, K. Yamanaka, A. Chiba
Isothermal γ → ε phase transformation behavior in a Co-Cr-Mo alloy depending on thermal history during electron beam powder-bed additive manufacturing
Journal of Materials Science and Technology, 50 (2020) 162−170.
doi:10.1016/j.jmst.2019.11.040

T. Lee, H. Bian, K. Aoyagi, H. Ohnishi, T. Hino, Y. Nakatani, A. Chiba
Fabricating 9–12 Cr ferritic/martensitic steels using selective electron beam melting
Materials Letters, 271 (2020) 127747.
doi:10.1016/j.matlet.2020.127747

N. Gong, I. Montes, K.C. Nune, R.D.K. Misra, K. Yamanaka, M. Mori, A. Chiba
Favorable modulation of osteoblast cellular activity on Zr-modified Co–Cr–Mo alloy: The significant impact of zirconium on cell–substrate interactions
Journal of Biomedical Materials Research - Part B Applied Biomaterials, 108 (2020) 1518−1526.
doi:10.1002/jbm.b.34499

Katsuhisa Yamada, Hideki Sudo, Norimasa Iwasaki, Akihiko Chiba
Mechanical Analysis of Notch-Free Pre-Bent Rods for Spinal Deformity Surgery
Spine, 45 (2020) E312−E318.
doi:10.1097/BRS.0000000000003269

Y. Cui, H. Bian, Y. Li, Y. Zhao, K. Aoyagi, A. Chiba
Impacts of pre-strain on twin boundary mobility of magnesium
Journal of Alloys and Compounds, 816 (2020) 152496.
doi:10.1016/j.jallcom.2019.152496

B. Yang, Y. Hou, Q. Lei, Y. Li, A. Chiba
Influence of Cu addition on corrosion behavior and tensile performance of Ni−30Co−16Cr−15Mo−6Fe alloy
Materials Characterization, 161 (2020) 110140.
doi:10.1016/j.matchar.2020.110140

H. Bian, K. Aoyagi, Y. Zhao, C. Maeda, T. Mouri, A. Chiba
Microstructure refinement for superior ductility of Al–Si alloy by electron beam melting
Additive Manufacturing, 32 (2020) 100982.
doi:10.1016/j.addma.2019.100982

Y. Cui, K. Aoyagi, Y. Koizumi, T. Fujieda, A. Chiba
Enhanced oxidation resistance of a titanium–based alloy by the addition of boron and the application of electron beam melting
Additive Manufacturing, 31 (2020) 100971.
doi:10.1016/j.addma.2019.100971

C. Zhu, Y. Koizumi, A. Chiba, K. Yuge, K., Kishida, H. Inui
Pattern formation mechanism of directionally-solidified MoSi₂/Mo₅Si₃ eutectic by phase-field simulation
Intermetallics, 116 (2020) 106590.
doi:10.1016/j.intermet.2019.106590

K. Ueki, M. Kasamatsu, K. Ueda, Y. Koizumi, D. Wei, A. Chiba, T. Narushima
Precipitation during γ-ε phase transformation in biomedical Co−Cr−Mo alloys fabricated by electron beam melting
Metals, 10 (2020) 71.
doi:10.3390/met10010071

山中謙太, 張宸, 卞華康, 千葉晶彦
デアロイングを活用した炭化物強化マルテンサイト鋼の耐食性改善
機能材料, 40(2) (2020) 49−56.

2019

Chen Zhang, Kenta Yamanaka, Huakang Bian, Akihiko Chiba
Corrosion-resistant carbide-reinforced martensitic steel by Cu modification
npj Materials Degradation, 3 (2019) 30.
doi:10.1038/s41529-019-0092-3

D. Wei, X. Li, S. Schönecker, J. Jiang, W.-M. Choi, B.-J. Lee, H.S. Kim, A. Chiba, H. Kato
Development of strong and ductile metastable face-centered cubic single-phase high-entropy alloys
Acta Materialia, 181 (2019) 318−330.
doi:10.1016/j.actamat.2019.09.050

Y. Zhao, Y. Koizumi, K. Aoyagi, K. Yamanaka, A. Chiba
Manipulating local heat accumulation towards controlled quality and microstructure of a Co-Cr-Mo alloy in powder bed fusion with electron beam
Materials Letters, 254 (2019) 269−272.
doi:10.1016/j.matlet.2019.07.078

C. Yang, K. Aoyagi, H. Bian, A. Chiba
Microstructure evolution and mechanical property of a precipitation-strengthened refractory high-entropy alloy HfNbTaTiZr
Materials Letters, 254 (2019) 46−49.
doi:10.1016/j.matlet.2019.07.027

P. Tunthawiroon, A. Chiba
Characterization of intermetallic phase in as-cast Si-doped Co−Cr−Mo alloys
IOP Conference Series: Materials Science and Engineering, 635 (2019) 012007.
doi:10.1088/1757-899X/635/1/012007

P. Tunthawiroon, A. Chiba
Effects of Si concentrations on microstructure and mechanical properties of as-cast Co−Cr−Mo alloys
IOP Conference Series: Materials Science and Engineering, 635 (2019) 012006.
doi:10.1088/1757-899X/635/1/012006

M.K. Gouda, M.A.H. Gepreel, K. Yamanaka, H. Bian, K. Nakamura, A. Chiba
Cold-Workability and Microstructure Change with β-Phase Stability in High-Strength Ti-Mn Binary Alloys
JOM, 71 (2019) 3590−3599.
doi:10.1007/s11837-019-03690-7

D. Wei, Y. Koizumi, M. Nagasako, Y. Kubota, T. Aoyagi, Y. Nakagawa, M. Yoshino, A. Chiba, H. Kato
Introducing dislocations locally in Al-supersaturated α₂-Ti₃Al single crystal via nanoscale wedge indentation
Intermetallics, 113 (2019) 106557.
doi:10.1016/j.intermet.2019.106557

X. Ding, Y. Koizumi, K. Aoyagi, T. Kii, N. Sasaki, Y. Hayasaka, K. Yamanaka, A. Chiba
Microstructural control of alloy 718 fabricated by electron beam melting with expanded processing window by adaptive offset method
Materials Science and Engineering A, 764 (2019) 138058.
doi:10.1016/j.msea.2019.138058

Q. Li, P. Miao, J. Li, M. He, M. Nakai, M. Niinomi, A. Chiba, T. Nakano, X. Liu, K. Zhou, D. Pan
Effect of Nb Content on Microstructures and Mechanical Properties of Ti−xNb−2Fe Alloys
Journal of Materials Engineering and Performance, 28 (2019) 5501−5508.
doi:10.1007/s11665-019-04250-5

B. Gao, L. Wang, Y. Liu, X. Song, S.Y. Yang, A. Chiba
High temperature oxidation behaviour of γ′-strengthened Co-based superalloys with different Ni addition
Corrosion Science, 157 (2019) 109−115.
doi:10.1016/j.corsci.2019.05.036

Daixiu Wei, Ainiwaer Anniyaer, Yuichiro Koizumi, Kenta Aoyagi, Makoto Nagasako, Hidemi Kato, Akihiko Chiba
On microstructural homogenization and mechanical properties optimization of biomedical Co-Cr-Mo alloy additively manufactured by using electron beam melting
Additive Manufacturing, 28 (2019) 215–227.
doi:10.1016/j.addma.2019.05.010

J.A. Chafino, K. Yamanaka, F. Mercier, P. Rivory, S. Balvay, D.J. Hartmann, A. Chiba, D. Fabregue
The influence of temperature during water-quench rapid heat treatment on the microstructure, mechanical properties and biocompatibility of Ti-6Al-4V ELI alloy
Journal of the Mechanical Behavior of Biomedical Materials, 96 (2019) 144–151.
doi:10.1016/j.jmbbm.2019.04.024

Sally Elkatatny, Mohamed A. H. Gepreel, Atef Hamada, Koichi Nakamura, Kenta Yamanaka, Akihiko Chiba
Effect of Al content and cold rolling on the microstructure and mechanical properties of Al₅Cr₁₂Fe₃₅Mn₂₈Ni₂₀ high-entropy alloy
Materials Science and Engineering A, 759 (2019) 380–390.
doi:10.1016/j.msea.2019.05.056

Qiang Li, Guanghao Ma, Junjie Li, Mitsuo Niinomi, Masaaki Nakai, Yuichro Koizumi, Dai-Xiu Wei, Tomoyuki Kakeshita, Takayoshi Nakano, Akihiko Chiba, Xuyan Liu, Kai Zhou, Deng Pan
Development of low-Young's modulus Ti–Nb-based alloys with Cr addition
Journal of Materials Science, 54 (2019) 8675–8683.
doi:10.1007/s10853-019-03457-0

Yufan Zhao, Yuichiro Koizumi, Kenta Aoyagi, Daixiu Wei, Kenta Yamanaka, Akihiko Chiba
Comprehensive study on mechanisms for grain morphology evolution and texture development in powder bed fusion with electron beam of Co–Cr–Mo alloy
Materialia, 6 (2019) 100346.
doi:10.1016/j.mtla.2019.100346

Kenta Yamanaka, Wataru Saito, Manami Mori, Hiroaki Matsumoto, Shigeo Sato, Akihiko Chiba
Abnormal grain growth in commercially pure titanium during additive manufacturing with electron beam melting
Materialia, 6 (2019) 100281.
doi:10.1016/j.mtla.2019.100281

K. Aoyagi, H. Wang, H. Sudo, A. Chiba
Simple method to construct process maps for additive manufacturing using a support vector machine
Additive Manufacturing, 27 (2019) 353−362.
doi:10.1016/j.addma.2019.03.013

Daixiu Wei, Xiaoqing Li, Jing Jiang, Weicheng Heng, Yuichiro Koizumi, Won-Mi Choi, Byeong-Joo Lee, Hyoung Seop Kim, Hidemi Kato, Akihiko Chiba
Novel Co-rich high performance twinning-induced plasticity (TWIP) and transformation-induced plasticity (TRIP) high-entropy alloys
Scripta Materialia, 165 (2019) 39–43.
doi:10.1016/j.scriptamat.2019.02.018

Tadashi Fujieda, Yujie Cui, Kenta Aoyagi, Yuichiro Koizumi, Akihiko Chiba
Electron beam melting of boron-modified Ti-6Al-2Sn-4Zr-2Mo-0.1Si alloy with superior tensile strength and oxidation resistance at elevated temperatures
Materialia, 4 (2019) 367–372.
doi:10.1016/j.mtla.2018.10.013

X. Ding, Y. Koizumi, D. Wei, A. Chiba
Effect of process parameters on melt pool geometry and microstructure development for electron beam melting of IN718: A systematic single bead analysis study
Additive Manufacturing, 26 (2019) 215−226.
doi:10.1016/j.addma.2018.12.018

Yufan Zhao, Yuichiro Koizumi, Kenta Aoyagi, Daixiu Wei, Kenta Yamanaka, Akihiko Chiba
Molten Pool Behavior and Effect of Fluid Flow on Solidification Conditions in Selective Electron Beam Melting (SEBM) of a Biomedical Co-Cr-Mo Alloy
Additive Manufacturing, 26 (2019) 202–214.
doi:10.1016/j.addma.2018.12.002

Kenta Yamanaka, Manami Mori, Ika Kartika, Moch. Syaiful Anwar, Koji Kuramoto, Shigeo Sato, Akihiko Chiba
Effect of multipass thermomechanical processing on the corrosion behaviour of biomedical Co−Cr−Mo alloys
Corrosion Science, 148 (2019) 178–187.
doi:10.1016/j.corsci.2018.12.009

Kenta Yamanaka, Hiroaki Matsumoto, Akihiko Chiba
A constitutive model and processing maps describing the high-temperature deformation behavior of Ti-17 alloy in the β-phase field
Advanced Engineering Materials, 21 (2019) 1800775.
doi:10.1002/adem.201800775

Manami Mori, Kenta Yamanaka, Shigeo Sato, Shinki Tsubaki, Kozue Satoh, Masayoshi Kumagai, Muneyuki Imafuku, Takahisa Shobu, Akihiko Chiba
Tuning strain-induced γ-to-ε martensitic transformation of biomedical Co–Cr–Mo alloys by introducing parent phase lattice defects
Journal of the Mechanical Behavior of Biomedical Materials, 90 (2019) 523–529.
doi:10.1016/j.jmbbm.2018.10.038

D. Wei, X. Li, W. Heng, Y. Koizumi, F. He, W.-M. Choi, B.-J. Lee, H.S. Kim, H. Kato, A. Chiba
Novel Co-rich high entropy alloys with superior tensile properties
Materials Research Letters, 7 (2019) 82−88.
doi:10.1080/21663831.2018.1553803

Tadashi Fujieda, Meichuan Chen, 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 melting
Additive Manufacturing, 25 (2019) 412–420.
doi:10.1016/j.addma.2018.10.023

Q. Li, X. Yuan, J. Li, M. Nakai, M. Niinomi, T. Nakano, A. Chiba, X. Liu, D. Pan
Effects of Fe on microstructures and mechanical properties of Ti−15Nb−25Zr−(0,2,4,8)Fe alloys prepared by spark plasma sintering
Materials Transactions, 60 (2019) 1763−1768.
doi:10.2320/matertrans.ME201913

Q. Li, Q. Qi, J. Li, M. Nakai, M. Niinomi, Y. Koizumi, D. Wei, K. Yamanaka, T. Nakano, A. Chiba, X. Liu, D. Pan
Low springback and low Young’s modulus in Ti−29Nb−13Ta−4.6Zr alloy modified by Mo addition
Materials Transactions, 60 (2019) 1755−1762.
doi:10.2320/matertrans.ME201912

M. Niinomi, T. Akahori, M. Nakai, Y. Koizumi, A. Chiba, T. Nakano, T. Kakeshita, Y. Yamabe-Mitarai, S. Kuroda, N. Motohashi, Y. Itsumi, T. Choda
Quantitative and qualitative relationship between microstructural factors and fatigue lives under load- And strain-controlled conditions of Ti−5Al−2Sn−2Zr−4Cr−4Mo (Ti-17) fabricated using a 1500-ton forging simulator
Materials Transactions, 60 (2019) 1740−1748.
doi:10.2320/matertrans.ME201904

2018

小泉雄一郎, 山中謙太, 青柳健大, 千葉晶彦
金属付加製造の現状と粉末床溶融結合における組織制御
スマートプロセス学会誌. 7 (2018) 216–222.

Tai-I Hsu, Chia-Min Wei, Lu-Dien Wu, Yun-Ping Li, Akihiko Chiba, Meng-Hsiu Tsai
Nitinol powders generate from Plasma Rotation Electrode Process provide clean powder for biomedical devices used with suitable size, spheroid surface and pure composition
Scientific Reports, 8 (2018) 13776.
doi:10.1038/s41598-018-32101-1

Daixiu Wei, Yuichiro Koizumi, Akihiko Chiba, Kosuke Ueki, Kyosuke Ueda, Takayuki Narushima, Yusuke Tsutsumi, Takao Hanawa
Heterogeneous microstructures and corrosion resistance of biomedical Co-Cr-Mo alloy fabricated by electron beam melting (EBM)
Additive Manufacturing, 24 (2018) 103–114.
doi:10.1016/j.addma.2018.09.006

Shi-Hai Sun, Yuichiro Koizumi, Tsuyoshi Saito, Kenta Yamanaka, Yun-Ping Li, Yujie Cui, Akihiko Chiba
Electron beam additive manufacturing of Inconel 718 alloy rods: Impact of build direction on microstructure and high-temperature tensile properties
Additive Manufacturing, 23 (2018) 457–470.
doi:10.1016/j.addma.2018.08.017

Kosuke Kuwabara, Hiroshi Shiratori, Tadashi Fujieda, Kenta Yamanaka, Yuichiro Koizumi, Akihiko Chiba
Mechanical and corrosion properties of AlCoCrFeNi high-entropy alloy fabricated with selective electron beam melting
Additive Manufacturing, 23 (2018) 264–271.
doi:10.1016/j.addma.2018.06.006

Huakang Bian, Yujie Cui, Yunping Li, Akihiko Chiba, Yan Nie
The influence of Mo on Suzuki-segregation-related microstructure evolution and mechanical properties of Co−Ni-based superalloy
Journal of Alloys and Compounds, 768 (2018) 136–142.
doi:10.1016/j.jallcom.2018.07.154

Fenglin Wang, Yunping Li, Akihiko Chiba, Yan Nie
Effects of carbon content and size on Ti-C reaction behavior and resultant properties of Cu-Ti-C alloy system
Materials Characterization, 141 (2018) 186–192.
doi:10.1016/j.matchar.2018.05.001

Xianjue Ye, Bohua Yu, Xiaojuan Gong, Biaobiao Yang, Yan Nie, Yunping Li, Akihiko Chiba
Microstructure refining of Co-29Cr-6Mo-0.16N alloy in rapid hot-forging process
Materials Science and Engineering A, 729 (2018) 48–52.
doi:10.1016/j.msea.2018.05.051

Kenta Yamanaka, Manami Mori, Yasuhiro Torita, Akihiko Chiba
Impact of minor alloying with C and Si on the precipitation behavior and mechanical properties of N-doped Co–Cr alloy dental castings
Materials Science and Engineering C, 92 (2018) 112–120.
doi:10.1016/j.msec.2018.06.035

Kosuke Kuwabara, Hiroshi Shiratori, Tadashi Fujieda, Kenta Yamanaka, Yuichiro Koizumi, Akihiko Chiba
Mechanical and Corrosion Properties of AlCoCrFeNi High-Entropy Alloy Fabricated with Selective Electron Beam Melting
Additive Manufacturing, 23 (2018) 264–271.
doi: 10.1016/j.addma.2018.06.006

Daixiu Wei, Yuichiro Koizumi, Taiyo Takashima, Makoto Nagasako, Akihiko Chiba
Fatigue improvement of electron beam melting-fabricated biomedical Co–Cr–Mo alloy by accessible heat treatment
Materials Research Letters, 6 (2018) 93–99.
doi: 10.1080/21663831.2017.1396506

藤枝正, 白鳥浩史, 千葉晶彦
電子ビーム積層造形法によるハイエントロピー合金の創生
日本機械学会誌, 121 (2018) 20–23.
doi:10.1299/jsmemag.121.1192_20

Yusuke Onuki, Shigeo Sato, Maiko Nakagawa, Kenta Yamanaka, Manami Mori, Akinori Hoshikawa, Toru Ishigaki, Akihiko Chiba
Strain-induced martensitic transformation and texture evolution in cold-rolled Co−Cr alloys
Quantum Beam Science, 2 (2018) 11.
doi:10.3390/qubs2020011

Dong Soo Kang, Yuichiro Koizumi, Kenta Yamanaka, Kenta Aoyagi , Huakang Bian, Akihiko Chiba
Significant impact of yttrium microaddition on high temperature tensile properties of Inconel 713C superalloy
Materials Letters, 227 (2018) 40–43.
doi:10.1016/j.matlet.2018.03.106

Furqan A. Shah, Edvin Jergéus, Akihiko Chiba, Anders Palmquist
Osseointegration of 3D printed microalloyed CoCr implants—Addition of 0.04% Zr to CoCr does not alter bone material properties
Journal of Biomedical Materials Research, Part A, 106 (2018) 1655–1663.
doi:10.1002/jbm.a.36366

Qiang Li, Dong Ma, Junjie Li, Mitsuo Niinomi, Masaaki Nakai, Yuichiro Koizumi, Daixiu Wei, Tomoyuki Kakeshita, Takayoshi Nakano, Akihiko Chiba, Kai Zhou, Deng Pan
Low Young’s Modulus TiNbO with High Strength and Good Plasticity
Materials Transactions, 59 (2018) 858–860.
doi:10.2320/matertrans.M2018021

千葉晶彦
電子ビーム積層造形によるCo-Cr-Mo合金製人工関節の可能性
まてりあ, 57 (2018) 150–154.
doi:10.2320/materia.57.150

Daixiu Wei, Yuichiro Koizumi, Akihiko Chiba
Porous surface structures in biomedical Co-Cr-Mo alloy prepared by local dealloying in a metallic melt
Materials Letters, 219 (2018) 256–259.
doi: 10.1016/j.matlet.2018.02.072

Saad Ebied, Atef Hamada, Wojciech Borek, Mohamed Gepreel, Akihiko Chiba
High-temperature deformation behavior and microstructural characterization of high-Mn bearing titanium-based alloy
Materials Characterization, 139 (2018) 176–185.
doi: 10.1016/j.matchar.2018.03.004

Kenta Yamanaka, Manami Mori, Yasuhiro Torita, Akihiko Chiba
Effect of nitrogen on the microstructure and mechanical properties of Co–33Cr–9W alloys prepared by dental casting
Journal of the Mechanical Behavior of Biomedical Materials, 77 (2018) 693–700.
doi: 10.1016/j.jmbbm.2017.10.017

Qiang Li, Dong Ma, Junjie Li, Mitsuo Niinomi, Masaaki Nakai, Yuichiro Koizumi, Daixiu Wei, Tomoyuki Kakeshita, Takayoshi Nakano, Akihiko Chiba, Kai Zhou, Deng Pan
Low Young’s Modulus Ti–Nb–O with High Strength and Good Plasticity
Materials Transactions, 59 (2018) 858–860.
doi:10.2320/matertrans.M2018021

2017

小泉雄一郎, 青柳健大, 山中謙太, 千葉晶彦
革新接合技術開発への道しるべ - 電子ビーム積層造形
溶接学会誌, 86(8) (2017) 570–578.
doi: 10.2207/jjws.86.570

小泉雄一郎, 千葉晶彦, 野村直之, 中野貴由
金属系材料の3次元積層造形技術の基礎
まてりあ, 56(12) (2017) 686–690.
doi: 10.2320/materia.56.686

佐藤成男, 小貫祐介, 星川晃範, 中川真惟子, 山中謙太, 富田俊郎
TOF型パルス中性子回折を用いた金属ミクロ組織解析
金属, 87(11) (2017) 57–64.

Daixiu Wei, Yuichiro Koizumi, Taiyo Takashima, Makoto Nagasako, Akihiko Chiba
Fatigue improvement of electron beam melting- fabricated biomedical Co–Cr–Mo alloy by accessible heat treatment
Materials Research Letters, 6 (2017) 93–99.
doi: 10.1080/21663831.2017.1396506

Akihiro Takezawa, Yuichiro Koizumi, Makoto Kobashi
High-stiffness and strength porous maraging steel via topology optimization and selective laser melting
Additive Manufacturing, 18 (2017) 194–202.
doi: 10.1016/j.addma.2017.10.004

Yujie Cui, Jiaxiang Li, Yunping Li, Yuichiro Koizumi, Akihiko Chiba
Damping capacity of pre-compressed magnesium alloys after annealing
Materials Science and Engineering A, 708 (2017) 104–109.
doi: 10.1016/j.msea.2017.09.096

Hiroaki Matsumoto, Daiki Naito, Kento Miyoshi, Kenta Yamanaka, Akihiko Chiba, Yoko Yamabe-Mitarai
Forging property, processing map, and mesoscale microstructural evolution modeling of a Ti-17 alloy with a lamellar (α+β) starting microstructure
Science and Technology of Advanced Materials, 18 (2017) 893–904.
doi: 10.1080/14686996.2017.1386530

Kenta Yamanaka, Manami Mori, Shigeo Sato, Akihiko Chiba
Stacking-fault strengthening of biomedical Co–Cr–Mo alloy via multipass thermomechanical processing
Scientific Reports, 7 (2017) 10808.
doi: 10.1038/s41598-017-10305-1

Yujie Cui, Yunping Li, Zhongchang Wang, Qian Lei, Yuichiro Koizumi, Akihiko Chiba
Regulating twin boundary mobility by annealing in magnesium and its alloys
Internaitional Journal of Plasiticity, 99 (2017) 1–18
doi: 10.1016/j.ijplas.2017.08.002

Phacharaphon Tunthawiroon, Yunping Li, Yuichiro Koizumi, Akihiko Chiba
Strain-controlled iso-thermal fatigue behavior of Co–29Cr–6Mo used for tooling materials in Al die casting
Materials Science and Engineering A, 703 (2017) 27–36.
doi: 10.1016/j.msea.2017.07.047

Fenglin Wang, Kimio Wakoh, Yunping Li, Shun Ito, Kenta Yamanaka, Yuichiro Koizumi, Akihiko Chiba
Study of microstructure evolution and properties of Cu-Fe microcomposites produced by a pre-alloyed powder method
Materials & Design, 126 (2017) 64–72.
doi: 10.1016/j.matdes.2017.04.017

Yan Chen, Yunping Li, Yuichiro Koizumi, Hani Haider, Akihiko Chiba
Effects of carbon addition on wear mechanisms of CoCrMo metal-on-metal hip joint bearings
Materials Science and Engineering C, 76 (2017) 997–1004.
doi: 10.1016/j.msec.2017.03.211

Yunping Li, Xianjuan Ye, Jiaxiang Li, Yi Zhang, Yuichiro Koizumi, Akihiko Chiba
Influence of cobalt addition on microstructure and hot workability of IN713C superalloy
Materials & Design, 122 (2017) 340-346.
doi: 10.1016/j.matdes.2017.03.014

Yujie Cui, Yunping Li, Zhongchang Wang, Xiao Ding, Yuichiro Koizumi, Huakang Bian, Liyang Lin, Akihiko Chiba
Impact of solute elements on detwinning in magnesium and its alloys
International Journal of Plasticity, 703 (2017) 27–36.
doi: 10.1016/j.ijplas.2016.09.014

Mahsa Keyvani, Thomas Garcin, Damien Fabrègue, Matthias Militzer, Kenta Yamanaka, Akihiko Chiba
Continuous Measurements of Recrystallization and Grain Growth in Cobalt Super Alloys
Metallurgical and Materials Transactions A, 48 (2017) 2363–2374.
doi: 10.1007/s11661-017-4027-8

Tadashi Fujieda, Hiroshi Shiratori, Kosuke Kuwabara, Mamoru Hirota, Takahiko Kato, Kenta Yamanaka, Yuichiro Koizumi, Akihiko Chiba, Seiichi Watanabe
CoCrFeNiTi-based high-entropy alloy with superior tensile strength and corrosion resistance achieved by a combination of additive manufacturing using selective electron beam melting and solution treatment
Materials Letters, 189 (2017) 148–151.
doi: 10.1016/j.matlet.2016.11.026

Dai-Xiu Wei, Yuichiro Koizumi, Makoto Nagasako, Akihiko Chiba
Refinement of lamellar structures in Ti-Al alloy
Acta Materialia, 125 (2017) 81–97.
doi: 10.1016/j.actamat.2016.11.045

Xiaoli Shui, Kenta Yamanaka, Manami Mori, Yoshihiko Nagata, Kenya Kurita, Akihiko Chiba
Effects of post-processing on cyclic fatigue response of a titanium alloy additively manufactured by electron beam melting
Materials Science and Engineering A, 680 (2017) 239–248.
doi: 10.1016/j.msea.2016.10.059

Dai-Xiu Wei, Yuichiro Koizumi, Akihiko Chiba
Discontinuous yielding and microstructural evolution of Ti-40 at.% Al alloy compressed in single α-hcp phase region
Journal of Alloys and Compounds, 693 (2017) 1261–1276.
doi: 10.1016/j.jallcom.2016.10.080

Akihiro Takezawa, Makoto Kobashi, Yuichiro Koizumi, Mitsuru Kitamura
Porous metal produced by selective laser melting with effective isotropic thermal conductivity close to the Hashin–Shtrikman bound
International Journal of Heat and Mass Transferm 105 (2017) 564–572.
doi: 10.1016/j.ijheatmasstransfer.2016.10.006

2016

Yonosuke Murakami, Erdnechuluun Enkhjavkhlan, Akihiko Chiba
Phase Stability and Mechanical Properties of Ti-Cr-Sn-Zr Alloys Containing a Large Amount of Zr
Materials Science Forum, 879 (2016) 1344–1349.
doi: 10.4028/www.scientific.net/MSF.879.1344

Taiyo Takashima, Yuichiro Koizumi, Yunping Li, Kenta Yamanaka, Tsuyoshi Saito, Akihiko Chiba
Effect of Building Position on Phase Distribution in Co-Cr-Mo Alloy Additive Manufactured by Electron-Beam Melting
Materials Transactions, 57 (2016) 2041–2047.
doi: 10.2320/matertrans.Y-M2016826

Huakang Bian, Yunping Li, Daixiu Wei, Yujie Cui, Shihai Sun, Kenta Yamanaka, Yuichiro Koizumi, Akihiko Chiba
Precipitation behavior of a novel cobalt-based superalloy subjected to prior plastic deformations
Materials & Design, 112 (2016) 1–10.
doi: 10.1016/j.matdes.2016.09.004

Kozue Satoh, Shigeo Sato, Kenta Yamanaka, Shigeru Suzuki, Akihiko Chiba, Kazuaki Wagatsuma
Line profile analysis combined with texture analysis for characterizing dislocation distribution in texture components of cold rolled copper sheets
High Temperature Materials and Processes, 35 (2016) 705–714.
doi: 10.1515/htmp-2015-0039

Manami Mori, Nanae Sato, Kenta Yamanaka, Kazuo Yoshida, Koji Kuramoto, Akihiko Chiba
Development of microstructure and mechanical properties during annealing of a cold-swaged Co–Cr–Mo alloy rod
Journal of the Mechanical Behavior of Biomedical Materials, 64 (2016) 187–198.
doi: 10.1016/j.jmbbm.2016.07.009

Yuichiro Koizumi, Arata Okazaki, Akihiko Chiba, Takahiko Kato, Akihiro Takezawa
Cellular Lattices of Biomedical Co-Cr-Mo-Alloy Fabricated by Electron Beam Melting with the Aid of Shape Optimization
Additive Manufacturing, 12, Part B (2016) 305–313.
doi: 10.1016/j.addma.2016.06.001

Clémence Petit, Eric Maire, Sylvain Meille, Jérôme Adrien, Shingo Kurosu, Akihiko Chiba
CoCrMo cellular structures made by Electron Beam Melting studied by local tomography and finite element modelling
Materials Characterization, 116 (2016) 48–54.
doi: 10.1016/j.matchar.2016.04.006

Yunping Li, Yuichiro Koizumi, Akihiko Chiba
Dynamic recrystallization in biomedical Co-29Cr-6Mo-0.16N alloy with low stacking fault energy
Materials Science and Engineering A, 668 (2016) 86–96.
doi: 10.1016/j.msea.2016.05.045

Fenglin Wang, Yunping Li, Guoqiang Xie, Kimio Wakoh, Kenta Yamanaka, Yuichiro Koizumi, Akihiko Chiba
Investigation on hot deformation behavior of nanoscale TiC-strengthened Cu alloys fabricated by mechanical milling
Materials Science and Engineering A, 668 (2016) 1–12.
doi: 10.1016/j.msea.2016.05.042

Yunping Li, Jiaxiang Li, Yuichiro Koizumi, Akihiko Chiba
Dynamic recrystallization behavior of biomedical Co-29Cr-6Mo-0.16N alloy
Materials Characterization, 118 (2016) 50–56.
doi: 10.1016/j.matchar.2016.05.004

Xiaoyu Wang, Yunping Li, Yuhang Hou, Huakang Bian, Yuichiro Koizumi, Akihiko Chiba
Effects of surface friction treatment on the in vitro release of constituent metals from the biomedical Co–29Cr–6Mo–0.16N alloy
Materials Science and Engineering C, 64 (2016) 260–268.
doi: 10.1016/j.msec.2016.03.050

V. Velay, H. Matsumoto, V. Vidal, A. Chiba
Behavior modeling and microstructural evolutions of Ti–6Al–4V alloy under hot forming conditions
International Journal of Mechanical Sciences, 108–109 (2016) 1–13.
doi: 10.1016/j.ijmecsci.2016.01.024

Hiroaki Matsumoto, Takuro Nishihara, Yohei Iwagaki, Tohru Shiraishi, Yoshiki Ono, Akihiko Chiba
Microstructural evolution and deformation mode under high-temperature-tensile-deformation of the Ti-6Al-4V alloy with the metastable α' martensite starting microstructure
Materials Science and Engineering A, 661 (2016) 68–78.
doi: 10.1016/j.msea.2016.02.089

Dai-Xiu Wei, Yuichiro Koizumi, Yunping Li, Kenta Yamanaka, Akihiko Chiba
Submicron lamellar porous structure formed by selective dissolution of Ti-Al alloy
Materials & Design, 98 (2016) 1–11.
doi: 10.1016/j.matdes.2016.02.096

Kenta Yamanaka, Manami Mori, Kazuhisa Sato, Akihiko Chiba
Characterisation of nanoscale carbide precipitation in as-cast Co−Cr−W-based dental alloys
Journal of Materials Chemistry B, 4 (2016) 1778-1786.
doi: 10.1039/C6TB00040A

Kazuaki Sonofuchi, Yoshihiro Hagiwara, Yuichiro Koizumi, Akihiko Chiba, Mitsuko Kawano, Masafumi Nakayama, Kouetsu Ogasawara, Yutaka Yabe, Eiji Itoi
Quantitative in vivo biocompatibility of new ultralow-nickel cobalt–chromium–molybdenum alloys
Journal of Orthopaedic Research, 39 (2016) 1505–1513.
doi: 10.1002/jor.23150

Hiroshi Shiratori, Tadashi Fujieda, Kenta Yamanaka, Yuichiro Koizumi, Kosuke Kuwabara, Takahiko Kato, Akihiko Chiba
Relationship between the microstructure and mechanical properties of an equiatomic AlCoCrFeNi high-entropy alloy fabricated by selective electron beam melting
Materials Science and Engineering A, 656 (2016) 39–46.
doi: 10.1016/j.msea.2016.01.019

Yuichiro Koizumi, Yan Chan, Yun-Ping Li, Kenta Yamanaka, Shun-Ichiro Tanaka, Yoshihiro Hagiwara, Akihiko Chiba
Uneven damage on head and liner contact surfaces of a retrieved Co-Cr-based metal-on-metal hip joint bearing: an important reason for the high failure rate
Materials Science and Engineering C, (2016) in press.
doi: 10.1016/j.msec.2016.01.006

Kenta Yamanaka, Manami Mori, Kazuo Yoshida, Koji Kuramoto, Akihiko Chiba
Manufacturing of high-strength Ni-free Co–Cr–Mo alloy rods via cold swaging
Journal of the Mechanical Behavior of Biomedical Materials, 60 (2016) 38–47.
doi: 10.1016/j.jmbbm.2015.12.032

Kenta Yamanaka, Manami Mori, Akihiko Chiba
Developing high strength and ductility in biomedical Co–Cr cast alloys by simultaneous doping with nitrogen and carbon
Acta Biomaterialia, 31 (2016) 435–447.
doi: 10.1016/j.actbio.2015.12.011

Kenta Yamanaka, Manami Mori, Kazuyo Ohmura, Akihiko Chiba
Preventing high-temperature oxidation of Co–Cr-based dental alloys by boron doping
Journal of Materials Chemistry B, 4 (2016) 309–317.
doi: 10.1039/C5TB01944C

Julien Favre, Damien Fabrégue, Kenta Yamanaka, Akihiko Chiba
Modeling dynamic recrystallization of L-605 cobalt superalloy
Materials Science and Engineering A, 653 (2016) 84–92.
doi: 10.1016/j.msea.2015.12.003

高島大洋, 小泉雄一郎, 李云平, 山中謙太, 齋藤毅, 千葉晶彦
電子ビーム溶融(EBM)積層造形により作製されたCo-Cr-Mo合金の造形位置が及ぼす組織への影響
粉体および粉末冶金, 63 (2016) 10–16.

Fenglin Wang, Yunping Li, Xiaoyu Wang, Yuichiro Koizumi, Kenta Yamanaka, Akihiko Chiba
In-situ Fabrication and Characterization of Ultrafine Structured Cu-TiC Composites with High Strength and High Conductivity by Mechanical Milling
Juornal of Alloys and Compounds, 657 (2016) 122–132.
doi: 10.1016/j.jallcom.2015.10.061

2015

千葉晶彦
電子ビーム積層造形技術による金属組織の特徴
計測と制御, 54 (2015) 399–404.

Fenglin Wang, Yunping Li, Xiaodong Xu, Yuichiro Koizumi, Kenta Yamanaka, Huakang Bian, Akihiko Chiba
Superthermostability of Nanoscale TiC-reinforced Copper Alloys Manufactured by a Two-step Ball-milling Process
Philosophical Magazine, 95 (2015) 4035–4053.
doi: 10.1080/14786435.2015.1112442

Manami Mori, Kenta Yamanaka, Akihiko Chiba
Cold-rolling behavior of biomedical Ni-free Co−Cr−Mo alloys: Role of strain-induced ε martensite and its intersecting phenomena
Journal of the Mechanical Behavior of Biomedical Materials, 55 (2015) 201–214.
doi: 10.1016/j.jmbbm.2015.10.021

Kenta Yamanaka, Wataru Saito, Manami Mori, Hiroaki Matsumoto, Akihiko Chiba
Preparation of weak-textured commercially pure titanium by electron beam melting
Additive Manufacturing, 8 (2015) 105–109.
doi: 10.1016/j.addma.2015.09.007

Manami Mori, Kenta Yamanaka, Shigeo Sato, Shinki Tsubaki, Kozue Satoh, Masayoshi Kumagai, Muneyuki Imafuku, Takahisa Shobu, Akihiko Chiba
Strengthening of biomedical Ni-free Co–Cr–Mo alloy by multipass “low-strain-per-pass” thermomechanical processing
Acta Biomaterialia, 28 (2015) 215–224.
doi: 10.1016/j.actbio.2015.09.016

Huakang Bian, Xiandong Xu, Yunping Li, Yuichiro Koizumi, Zhongchang Wang, Mingwei Chen, Kenta Yamanaka, Akihiko Chiba
Regulating the coarsening of the γ' phase in superalloys
NPG Asia Materials, 7 (2015) e212.
doi: 10.1038/am.2015.96

Phacharaphon Tunthawiroon, Yunping Li, Akihiko Chiba
Influences of alloyed Si on the corrosion resistance of Co-Cr-Mo alloy to molten Al by iso-thermal oxidation in air
Corrosion Science, 100 (2015) 428–434.
doi: 10.1016/j.corsci.2015.08.014

Yuhang Hou, Yunping Li, Chen Zhang, 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
Corrosion Science, 99 (2015) 185–193.
doi: 10.1016/j.corsci.2015.07.004

Manami Mori, Kenta Yamanaka, Shigeo Sato, Akihiko Chiba
Texture evolution and mechanical anisotropy of biomedical hot-rolled Co–Cr–Mo alloy
Journal of the Mechanical Behavior of Biomedical Materials, 51 (2015) 205–214.
doi: 10.1016/j.jmbbm.2015.06.034

Kenta Yamanaka, Manami Mori, Akihiko Chiba
Assessment of precipitation behavior in dental castings of a Co–Cr–Mo alloy
Journal of the Mechanical Behavior of Biomedical Materials, 50 (2015) 268–276.
doi: 10.1016/j.jmbbm.2015.06.020

Tadashi Fujieda, Hiroshi Shiratori, Kosuke Kuwabara, Takahiko Kato, Kenta Yamanaka, Yuichiro Koizumi, Akihiko Chiba
First demonstration of promising selective electron beam melting method for utilizing high-entropy alloys as engineering materials
Materials Letters, 159 (2015) 12–15.
doi: 10.1016/j.matlet.2015.06.046

Manami Mori, Kenta Yamanaka, Koji Kuramoto, Kazuyo Ohmura, Tetsuya Ashino, Akihiko Chiba
Effects of carbon on microstructure, mechanical properties and metal ion release of Ni-free Co–Cr–Mo alloys containing nitrogen
Materials Sciecne and Engineering C, 55 (2015) 145-154.
doi: 10.1016/j.msec.2015.05.058

Dai-Xiu Wei, Yuichiro Koizumi, Akinori Yamanaka, Masahiko Yoshino, Yungping Li, Akihiko Chiba
Control of γ lamella precipitation in Ti-39 at.% Al single crystals by nanogroove-induced dislocation bands
Acta Materialia, 96 (2015) 352–365.
doi: 10.1016/j.actamat.2015.05.016

Yunping Li, Xiandong Xu, Chen Zhang, Yuhang Hou, Fenglin Wang, Kazuyo Omura, Yuichiro Koizumi, Akihiko Chiba
Regulating the Passive Film of NiCoCrMo Alloy in Hydrofluoric Acid Solution by Small Addition of Cu
Corrosion Science, 98 (2015) 119–127.
doi: 10.1016/j.corsci.2015.05.024

Yan Chen, Yunping Li, Shingo Kurosu, Qingen Meng, Ning Tang, Yuichiro Koizumi, Akihiko Chiba
Analysis of Run-in-Stage Wear Behavior and Contact Mechanics of Metal-on-Metal Hip Joint Bearings with Different Radial Clearances
Materials Transactions, 56 (2015) 826-834.
doi: 10.2320/matertrans.M2014440

Toshihiro Yamazaki, Yuichiro Koizumi, Akihiko Chiba, Koji Hagihara, Takayoshi Nakano, Koretaka Yuge, Kyosuke Kishida, Haruyuki Inui
Mechanisms of lamellar structure formation and Cr interfacial segregation in C11_b-MoSi₂/C40-NbSi₂ dual phase silicide verified by a phase-field simulation incorporating elastic inhomogeneity
Computational Materials Science, 108 (2015) 358–366.
doi: 10.1016/j.commatsci.2015.04.018

Kenta Yamanaka, Manami Mori, Ken Yamazaki, Ruriko Kumagai, Minoru Doita, Akihiko Chiba
Analysis of the fracture mechanism of Ti-6Al-4V alloy rods that failed clinically after spinal instrumentation surgery
Spine (Phila Pa), 40 (2015) E767–E773.
doi: 10.1097/BRS.0000000000000881

Phacharaphon Tunthawiroon, Yunping Li, Ning Tang, Yuichiro Koizumi, Akihiko Chiba
Effects of alloyed Si on the oxidation behaviour of Co-29Cr-6Mo alloy for solid-state fuel cell interconnects
Corrosion Science, 95 (2015) 88-99.
doi: 10.1016/j.corsci.2015.02.036

Osamu Takakuwa, Akihiko Chiba, Hitoshi Soyama
Movement of dislocations in the sub-surface of a polycrystalline metal by cavitation peeing observed by transmission electron microscopy
Materials Science and Applications, 6 (2015) 140-144.
doi: 10.4236/msa.2015.62017

Kenta Yamanaka, Manami Mori, Akihiko Chiba
Surface characterisation of Ni-free Co-Cr-W-based dental alloys exposed to high temperatures and effects of adding silicon
Corrosion Science, 94 (2015) 411-419.
doi: 10.1016/j.corsci.2015.02.030

Patrik Stenlund, Shingo Kurosu, Yuichiro Koizumi, Felicia Suska, Hiroaki Matsumoto, Akihiko Chiba, Anders Palmquist
Low amount of Zr in electron beam melted CCM implants improves osseointegration
Additive Manufacturing, 6 (2015) 6–15.
doi: 10.1016/j.addma.2015.02.002

Yujie Cui, Yunping Li, Shihai Sun, Huakang Bian, Hua Huang, Zhongchang Wang, Yuichiro Koizumi, Akihiko Chiba
Enhanced damping capacity of magnesium alloys by tensile twin boundaries
Scripta Materialia, 101 (2015) 8-11.
doi: 10.1016/j.scriptamat.2015.01.002

Dai-Xiu Wei, Yuichiro Koizumi, Huakang Bian, Yunping Li, Akihiko Chiba
Nano-lamellar/nano-tubular hierarchical porous structure produced by selective dissolution and anodization of lamellar Ti-40 at.% Al alloy
Materials Letters, 145 (2015) 15-18.
doi: 10.1016/j.matlet.2014.11.059

Shi-Hai Sun, Yuichiro Koizumi, Shingo Kurosu, Yun-Ping Li, Akihiko Chiba
Phase and grain size inhomogeneity and their influences on creep behavior of Co-Cr-Mo alloy additive manufactured by electron-beam melting (EBM)
Acta Materialia, 86 (2015) 305-318.
doi: 10.1016/j.actamat.2014.11.012

Yuhang Hou, Yunping Li, Chen Zhang, Yuichiro Koizumi, Akihiko Chiba
Ex-situ Observation on the Dissolution Behavior of Ni-16Cr-15Mo and Ni-30Co-16Cr-15Mo Alloys in Aqueous Hydrofluoric Acid Solution
Corrosion Science, 90 (2015) 133–139.
doi: 10.1016/j.corsci.2014.10.003

2014

Yuhang Hou, Yunping Li, Chen Zhang, Yuichiro Koizumi, Akihiko Chiba
Effects of Cold Working on Corrosion Resistance of Co-Modified Ni-16Cr-15Mo Alloy in Hydrofluoric Acid Solution
Corrosion Science, 89 (2014) 258-267.
doi: 10.1016/j.corsci.2014.09.004

Takuya Mitsunobu, Yuichiro Koizumi, Byoung-Soo Lee, Kenta Yamanaka, Hiroaki Matsumoto, Yunping Li, Akihiko Chiba
Role of strain-induced martensitic transformation in the formation of extrusion and intrusion during fatigue deformation of biomedical Co-Cr-Mo-N alloys
Acta Materialia, 81 (2014) 377-385.
doi: 10.1016/j.actamat.2014.08.039

Fenglin Wang, Yunping Li, Kenta Yamanaka, Kimio Wakoh, Koichi Harata, Akihiko Chiba
Influence of two-step ball-milling condition on electrical and mechanical properties of TiC-dispersion-strengthened Cu alloys
Materials & Design, 64 (2014) 441-449.
doi: 10.1016/j.matdes.2014.08.027

Chen Zhang, Yunping Li, Yuhang Hou, Ning Tang, Kazuyo Omura, Yuichiro Koizumi, Akihiko Chiba
Corrosion Resistance of Cu- and Fe-modified Ni-30Co-16Cr-15Mo Alloy in Aqueous Hydrofluoric Acid
Corrosion Science, 89 (2014) 81-92.
doi: 10.1016/j.corsci.2014.08.010

Ning Tang, Yunping Li, Phacharaphon Tunthawiroon, Yuichiro Koizumi, Akihiko Chiba
Thermo-mechanical fatigue test of a wrought Co-based alloy as potential tooling material for die casting
Materials Science and Engineering A, 615 (2014) 164-168.
doi: 10.1016/j.msea.2014.07.073

Yan Chen, Yunping Li, Shingo Kurosu, Kenta Yamanaka, Ning Tang, Akihiko Chiba
Effects of microstructures on the sliding behavior of hot-pressed CoCrMo alloys
Wear, 319 (2014) 200-210. . doi: 10.1016/j.wear.2014.07.022

Kenta Yamanaka, Manami Mori, Akihiko Chiba
Influence of carbon addition on mechanical properties and microstructures of Ni-free Co-28Cr-9W-1Si-C alloys subjected to thermomechanical processing
Journal of the Mechanical Behavior of Biomedical Materials, 37 (2014) 274-285.
doi: 10.1016/j.jmbbm.2014.05.025

Toshihiro Yamazaki, Yuichiro Koizumi, Koretaka Yuge, Akihiko Chiba, Koji Hagihara, Takayoshi Nakano, Kyosuke Kishida, Haruyuki Inui
Mechanisms of Cr segregation to C11_b/C40 lamellar interface in (Mo,Nb)Si₂ duplex silicide: a phase-field study to bridge experimental and first-principles investigations
Intermetallics, 54 (2014) 232-241.
doi: 10.1016/j.intermet.2014.05.019

Hiroaki Matsumoto, Vincent Velay, Akihiko Chiba
Flow behavior and microstructure in Ti-6Al-4V alloy with an ultrafine-grained α-single phase microstructure during low-temperature-high-strain-rate superplasticity
Materials & Design, 66, Part B (2014) 611-617.
doi: 10.1016/j.matdes.2014.05.045

千葉晶彦
電子ビーム積層造形技術とそれにより形成される金属組織
スマートプロセス学会誌, 3 (2014) 152-157.

Hiroaki Matsumoto, Masami Kitamura, Yunping Li, Yuichiro Koizumi, Akihiko Chiba
Hot forging characteristic of Ti-5Al-5V-5Mo-3Cr alloy with single metastable β microstructure
Materials Science and Engineering A, 611 (2014) 337-344.
doi: 10.1016/j.msea.2014.05.071

Byoung-Soo Lee, Yuichiro Koizumi, Hiroaki Matsumoto, Akihiko Chiba
Collective behavior of strain-induced martensitic transformation (SIMT) in biomedical Co-Cr-Mo-N alloy polycrystal: an ex-situ electron backscattering diffraction study
Materials Science and Engineering A, 611 (2014) 263-273.
doi: 10.1016/j.msea.2014.05.071

Manami Mori, Kenta Yamanaka, Akihiko Chiba
Effect of cold rolling on phase decomposition in biomedical Co-29Cr-6Mo-0.2N alloy during isothermal heat treatment at 1073 K
Journal of Alloys and Compounds, 612 (2014) 273-279.
doi: 10.1016/j.jallcom.2014.05.175

小泉雄一郎，孫世海，齋藤毅，黒須信吾, 千葉晶彦
電子ビーム積層造形によるCo-Cr-Mo合金製ゼンマイばねの試作
粉体および粉末冶金, 61 (2014) 243-249.

Shi-Hai Sun, Yuichiro Koizumi, Shingo Kurosu, Yun-Ping Li, Akihiko Chiba
Effect of phase transformation on tensile behavior of Co-Cr-Mo fabricated by electron–beam melting
Journal of Japanese Society of Powder Metallurgy, 61 (2014) 234-242.

Dai-Xiu Wei, Yuichiro Koizumi, Hiroaki Nishiyama, Akinori Yamanaka, Masahiko Yoshino, Shinpei Miyamoto, Kyosuke Yoshimi, Akihiko Chiba
Nanoplastic deformation on Ti-39 at.% Al single crystals for manipulation of every single gamma lamella
Acta Materialia, 76 (2014) 331-341.
doi: 10.1016/j.actamat.2014.05.031

Yunping Li, Yujie Cui, Huakang Bian, Shihai Sun, Ning Tang, Yan Chen, Bin Liu, Yuichiro Koizumi, Akihiko Chiba
Detwining in Mg alloy with a high density of twin boundaries
Science and Technology of Advanced Materials, 15 (2014) 035003.
doi: 10.1088/1468-6996/15/3/035003

Fenglin Wang, Yunping Li, Kimio Wako, Yuichiro Koizumi, Akihiko Chiba
Cu-Ti-C Alloy with High Strength and High Electrical Conductivity prepared by Two-step Ball-milling Processes
Materials and Design, 61 (2014) 70-74.
doi: 10.1016/j.matdes.2014.04.034

Julien Favre, Damien Fabrègue, Akihiko Chiba, Yves Bréchet
Grain growth and static recrystallization kinetics in Co-20Cr-15W-10Ni (L-605) cobalt-base superalloy
Philosophical Magazine, 94 (2014) 1992-2008.
doi: 10.1080/14786435.2014.903342

Kenta Yamanaka, Manami Mori, Akihiko Chiba
Effects of carbon concentration on microstructure and mechanical properties of as-cast nickel-free Co-28Cr-9W-based dental alloys
Materials Science and Engineering C, 40 (2014) 127-134.
doi: 10.1016/j.msec.2014.03.053

Kazuhisa Sato, Hiroaki Matsumoto, Akihiko Chiba, Toyohiko J. Konno
Aging Effect on Microstructure of Cold Groove-Rolled α'-Type Ti-12 mass%-2 mass%Al Alloys Studied by Transmission Electron Microscopy
Materials Transactions, 55 (2014) 763-767.
doi: 10.2320/matertrans.M2013463

Yunping Li, Phacharaphon Tunthawiroon, Ning Tang, Huakang Bian, Fenglin Wang, Shihai Sun, Yan Chen, Kazuyo Omura, Yuichiro Koizumi, Akihiko Chiba
Effects of Al, Ti, and Zr doping on oxide film formation in Co-29Cr-6Mo alloy used as mould material for Al die-casting
Corrosion Science, 84 (2014) 147-158.
doi: 10.1016/j.corsci.2014.03.020

Yunping Li, Peng Li, Huakang Bian, Ning Tang, Yuichiro Koizumi, Akihiko Chiba
Hot Forging Behaviour and its Effects on Oxidation Behavior of W-Cr alloy
Corrosion Science, 83 (2014) 367-374.
doi: 10.1016/j.corsci.2014.03.005

Ning Tang, Yunping Li, Yuichiro Koizumi, Shingo Kurosu, Akihiko Chiba
Surface nitriding of a Co-Cr-Mo alloy in nitrogen
Materials Chemistry and Physics, (2014) in press.
doi: 10.1016/j.matchemphys.2014.02.023

Xiaoqing Zhang, Yunping Li, Ning Tang, Emi Onodera, Akihiko Chiba
Corrosion behavior of CoCrMo alloys in 2 wt% sulfuric acid solution
Electrochimica Acta, 125 (2014) 543-555.
doi: 10.1016/j.electacta.2014.01.143

Kenta Yamanaka, Manami Mori, Akihiko Chiba
Effects of nitrogen on microstructural evolution of biomedical Co-Cr-W alloys during hot deformation and subsequent cooling
Materials and Design, 57 (2014) 421-425.
doi: 10.1016/j.matdes.2013.12.080

Kenta Yamanaka, Manami Mori, Yuichiro Koizumi, Akihiko Chiba
Local strain evolution due to athermal γ → ε martensitic transformation in biomedical Co-Cr-Mo alloys
Journal of the Mechanical Behavior of Biomedical Materials, 32 (2014) 52-61.
doi: 10.1016/j.jmbbm.2013.12.019

M. Mori, K. Yamanaka, A. Chiba
Phase decomposition in biomedical Co-29Cr-6Mo-0.2N alloy during isothermal heat treatment at 1073 K
Journal of Alloys and Compounds, 590 (2014) 411-416.
doi: 10.1016/j.jallcom.2013.12.126

Yan Chen, Yunping Li, Shingo Kurosu, Kenta Yamanaka, Ning Tang, Yuichiro Koizumi, Akihiko Chiba
Effects of Sigma Phase and Carbide on the Wear Behavior of Biomedical CoCrMo Alloys in Hanks' Solution
Wear, 310 (2014) 51-62.
doi: 10.1016/j.wear.2013.12.010

Shi-Hai Sun, Yuichiro Koizumi, Shingo Kurosu, Yun-Ping Li, Hiroaki Matsumoto, Akihiko Chiba
Build-direction dependence of microstructure and high-temperature tensile property of Co-Cr-Mo alloy fabricated by electron-beam melting (EBM)
Acta Materialia, 64 (2014) 154-168.
doi: 10.1016/j.actamat.2013.10.017

Kenta Yamanaka, Manami Mori, Akihiko Chiba
Nitrogen-enhanced nanostructural evolution and its effect on phase stability in biomedical Co-Cr-Mo alloys
Advanced Materials Research, 922 (2014) 826-831.
doi: 10.4028/www.scientific.net/AMR.922.826

T. Yamazaki, Y. Koizumi, A. Chiba, K. Hagihara, T. Nakano, K. Yuge, K. Kishida, H. Inui
Interface Migration with Segregation in MoSi₂-Based Lamellar Alloy Simulated by Phase-Field Method
Advanced Materials Research, 922 (2014) 832-837.
doi: 10.4028/www.scientific.net/AMR.922.832

J.Y. Song, S. Sato, Y. Koizumi, A. Chiba
Effect of cobalt addition on the deformation and recrystallization textures of polycrystalline IN713C nickel based superalloy
Advanced Materials Research, 922 (2014) 711-715.
doi: 10.4028/www.scientific.net/AMR.922.711

Takuya Mitsunobu, Yuichiro Koizumi, Byoung-Soo Lee, Akihiko Chiba
Asymmetric slip trace formation in tension/compression cyclic deformation of biomedical Co-Cr-Mo-N alloy with negative stacking fault energy
Scripta Materialia, 74 (2014) 52-55.
doi: 10.1016/j.scriptamat.2013.10.015

Hiroaki Matsumoto, Yuichiro Koizumi, Tetsuya Ohashi, Byoung Soo Lee, Yunping Li, Akihiko Chiba
Microscopic mechanism of plastic deformation in a polycrystalline Co-Cr-Mo alloy with a single hcp phase
Acta Materialia, 64 (2014) 1-11.
doi: 10.1016/j.actamat.2013.11.005

Ning Tang, Yunping Li, Yichiro Koizumi, Akihiko Chiba
Effect of nitriding treatment on corrosion behaviour of Co-Cr-Mo alloy in liquid Al
Corrosion Science, 78 (2014) 244-250.
doi: 10.1016/j.corsci.2013.10.0041

Kenta Yamanaka, Manami Mori, Akihiko Chiba
Dynamic recrystallization of a biomedical Co-Cr-W-based alloy under hot deformation
Materials Science and Engineering A, 592 (2014) 173-181.
doi: 10.1016/j.msea.2013.11.002

Kenta Yamanaka, Manami Mori, Akihiko Chiba
Refinement of solidification microstructures by carbon addition in biomedical Co-28Cr-9W-1Si alloys
Materials Letters, 116 (2014) 82-85.
doi: 10.1016/j.matlet.2013.10.109

Kenta Yamanaka, Manami Mori, Koji Kuramoto, Akihiko Chiba
Development of new Co-Cr-W-based alloys for biomedical applications: Effects of microalloying and thermomechanical processing on microstructures and mechanical properties
Materials and Design, 55 (2014) 987-998.
doi: 10.1016/j.matdes.2013.10.052

Kenta Yamanaka, Manami Mori, Akihiko Chiba
Effects of nitrogen addition on microstructure and mechanical behavior of biomedical Co-Cr-Mo alloys
Journal of the Mechanical Behavior of Biomedical Materials, 29 (2014) 417-426.
doi: 10.1016/j.jmbbm.2013.10.006

Yunping Li, Xiuru Fan, Ning Tang, Huakang Bian, Yuhang Hou, Yuichiro Koizumi, Akihiko Chiba
Effects of partially substituting cobalt for nickel on the corrosion resistance of a Ni-16Cr-15Mo alloy to aqueous hydrofluoric acid
Corrosion Science, 78 (2014)101-110.
doi: 10.1016/j.corsci.2013.09.004

2013

Koretaka Yuge, Kyosuke Kishida, Haruyuki Inui, Yuichiro Koizumi, Koji Hagihara, Takayoshi Nakano, "Cr segregation at C11_b/C40 interface in MoSi2-based alloys: A first-principles study", Intermetallics, 42 (2013) 165-169.
doi: 10.1016/j.intermet.2013.06.009

Y. R. Wen, Y. P. Li, A. Hirata, Y. Zhang, T. Fujita, T. Furuhara, C. T. Liu, A. Chiba, M. W. Chen, "Synergistic alloying effect on microstructural evolution and mechanical properties of Cu precipitation strengthened ferritic alloys", Acta Materialia, 61 (2013) 7726-7740.
doi: 10.1016/j.actamat.2013.09.011

Shu Yu, Fuqing Zhang, Xiang Xiong, Yunping Li, Ning Tang, Yuichiro Koizumi, Akihiko Chiba, "Tribological properties of carbon/carbon composites with various pyrolytic carbon microstructures", Wear, 304 (2013) 103-108.
doi: 10.1016/j.wear.2013.04.031

Julien Favre, Damien Fabrègue, David Piot, Ning Tang, Yuichiro Koizumi, Eric Maire, Akihiko Chiba, "Modeling Grain Boundary Motion and Dynamic Recrystallization in Pure Metals",Metallurgical and Materials Transactions A, 44 (2013) 5861-5875.
"http://dx.doi.org/10.1007/s11661-013-1914-5

Julien Favre, Damien Fabrègue, Akihiko Chiba, Yves Bréchet, "Nucleation of recrystallization in fine-grained materials: an extension of the Bailey-Hirsch criterion", Philosophical Magazine Letters, 93 (2013) 631-639.
doi: 10.1080/09500839.2013.833352

Phacharaphon Tunthawiroon, Yunping Li, Ning Tang, Yuichiro Koizumi, Akihiko Chiba, "Enhancement of Corrosion Resistance of Fe-Cr-Mo alloy to Molten Al by Thermal Oxidation in Air", Corrosion Science, 304 (2013) 103-108.
doi: 10.1016/j.corsci.2013.07.031

Yunping Li,Teppei Suzuki, Ning Tang, Yuichiro Koizumi, Akihiko Chiba "Microstructure Evolution of SUS303 Free-cutting Steel during Hot Forging Process", Materials Science & Engineering A, 581 (2013) 161-168.
doi: 10.1016/j.msea.2013.06.069

Ning Tang, Yunping Li, Yuichiro Koizumi, Shingo Kurosu, Akihiko Chiba, "Interfacial reaction between Co-Cr-Mo alloy and liquid Al", Corrosion Science, 75(2013) 262-268.
doi: 10.1016/j.corsci.2013.06.009

Hua Huang, Chunlin Chen, Zhongchang Wang, Yunping Li, Guangyin Yuan "Effect of pretreatment and annealing on microstructure and mechanical properties of Mg-1.5Zn-0.25Gd(at. %) alloys reinforced with quasicrystal", Materials Science and Engineering A, 581(2013) 73-82.
doi: 10.1016/j.msea.2013.06.003

Yuichiro Koizumi, Takeshi Otsuka, Yoritoshi Minamino, Takemori Takayama, Masanori Ueyama, Takeshi Daio, Satoshi Hata, "Microstructures Developed by Super-Rapid Induction Heating-and-Quenching (SRIHQ) of Fe-1.4%Cr-1%C Pearlitic Steel", Materials Science and Engineering A, 577 (2013) 29-35.
doi: 10.1016/j.msea.2013.04.024

Yunping Li, Ning Tang, Phacharaphon Tunthawiroon, Yuichiro Koizumi, Akihiko Chiba, "Characterisation of Oxide films Formed on Co-29Cr-6Mo Alloy Used in Die-casting Moulds for Aluminium", Corrosion Science, 73 (2013) 72–79.
doi: 10.1016/j.corsci.2013.03.026

Ning Tang, Yunping Li, Yuichiro Koizumi,Shingo Kurosu, Akihiko Chiba, "Experimental and theoretical study on interfacial reaction of solid Co with liquid Al", Corrosion Science, 73 (2013) 54–61;
doi: 10.1016/j.corsci.2013.03.024

Hiroaki Matsumoto, Liu Bin, Sang-Hak Lee, Yunping Li, Yoshiki Ono, Akihiko Chiba, "Frequent Occurrence of Discontinuous Dynamic Recrystallization in Ti-6Al-4V Alloy with α′ Martensite Starting Microstructure", Metallurgical and Materials Transactions A, 44 (2013) 3245-3260.
doi: 10.1007/s11661-013-1655-5

Julien Favre, Yuichiro Koizumi, Akihiko Chiba, Damien Fabregue, Eric Maire, "Deformation Behavior and Dynamic Recrystallization of Biomedical Co-Cr-W-Ni (L-605) Alloy", Metallurgical and Materials Transactions A, 44 (2013) 2819-2830.
doi: 10.1007/s11661-012-1602-x

Hiroaki Matsumoto, Kazuki Yoshida, San-Hak Lee, Yoshiki Ono, Akihiko Chiba, "Ti-6Al-4V alloy with an ultrafine-grained microstructure exhibiting low-temperature–high-strain-rate superplasticity" Materials Letters, 98 (2013) 209–212.
doi: 10.1016/j.matlet.2013.02.033

Atsushi Takaichi, Suyalatu, Takayuki Nakamoto, Natsuka Joko, Naoyuki Nomura, Yusuke Tsutsumi, Satoshi Migita, Hisashi Doi, Shingo Kurosu, Akihiko Chiba, Noriyuki Wakabayashi, Yoshimasa Igarashi, Takao Hanawa, "Microstructures and mechanical properties of Co-29Cr-6Mo alloy fabricated by selective laser melting process for dental applications", Journal of the Mechanical Behavior of Biomedical Materials, 21 (2013) 67–76.
doi: 10.1016/j.jmbbm.2013.01.021

Kenta Yamanaka, Manami Mori, Akihiko Chiba, "Nanoarchitectured Co–Cr–Mo orthopedic implant alloys: Nitrogen-enhanced nanostructural evolution and its effect on phase stability", Acta Biomaterialia, 9 (2013) 6259–6267.
doi: 10.1016/j.actbio.2012.12.013

Yuichiro Koizumi, Sho Suzuki, Kenta Yamanaka, Byoung-Soo Lee, Kazuhisa Sato, Yunping Li, Shingo Kurosu, Hiroaki Matsumoto, Akihiko Chiba, "Strain-induced martensitic transformation near twin boundaries in a biomedical Co—Cr—Mo alloy with negative stacking fault energy", Acta Materialia, 61 (2013) 1648-1661.
doi: 10.1016/j.actamat.2012.11.041

Hiroaki Tsuchiya, Toshifumi Akakia, Yuichiro Koizumi, Yoritoshi Minamino, Shinji Fujimoto, Selective pore growth on lamellar Ti–41 at.%Al alloy", Electrochemistry Communications, 26 (2013) 117–120.
doi: 10.1016/j.elecom.2012.08.025

Teppei Suzuki, Yunping Li, Yuichiro Koizumi, Akihiko Chiba "Quantitative Evaluation in Hot Workability of SUS303 Free-cutting Steel" Materials Science and Engineering A, 563 (2013) 117–124.
doi: 10.1016/j.msea.2012.11.041

Yunping Li, Shuo Wu, Huakang Bian, Ning Tang, Bin Liu, Yuichiro Koizumi, Akihiko Chiba, "Grain Refinement due to Complex Twin Formations in Rapid Hot Forging of Magnesium Alloy", Scripta Materialia, 68 (2013) 171-174.
doi: 10.1016/j.scriptamat.2012.10.007

Menghan Wang, Yufeng Li, Wenhao Wang, Jie Zhou, Akihiko Chiba, "Quantitative Analysis of Work Hardening and Dynamic Softening Behavior of low carbon alloy Steel Based on the Flow Stress", Materials and Design, 45 (2013) 384–392.
doi: 10.1016/j.matdes.2012.08.041

2012

Menghan Wang, Wenhao Wang, Jingjing Dong, Linhui Zhang, Yunping Li, Akihiko Chiba, "Quantitative analysis of work hardening and dynamic softening behaviors of Cu-6 wt pct Ag binary alloy based on true stress vs strain curves", Acta Metallurgica Sinica (English Letters) 25 (2012) 420–434.
http://www.amse.org.cn/EN/abstract/abstract20900.shtml

Kenta Yamanaka, Manami Mori, Akihiko Chiba, "Enhanced Mechanical Properties of As-forged Co-Cr-Mo-N Alloys with Ultrafine-Grained Structures", Metallurgical and Materials Transactions A, 43A (2012) 5243-5257.
doi: 10.1007/s11661-012-1288-0

Kenta Yamanaka, Manami Mori, Akihiko Chiba, "Origin of Significant Grain Refinement of Biomedical Co-29Cr-6Mo Alloy without Severe Plastic Deformation", Metallurgical and Materials Transactions A, 43A (2012) 4875-4887.
doi: 10.1007/s11661-012-1303-5

Yuichiro Koizumi, S. M. Allen, Masayuki Ouchi and Y. Minamino, "Evaluation of Ordering Mobility from Antiphase Boundary Mobility in Fe3Al using Phase-Field Simulation", ISIJ International, 52 (2012) 1678–1682.
doi: 10.2355/isijinternational.52.1678

Bin Liu, Yunping Li, Hiroaki Matsumoto, Yuichiro Koizumi, Yong Liu, Akihiko Chiba, "Enhanced grain refinement through deformation induced alpha precipitation in hot working of alpha+beta titanium alloy", Advanced Engineering Materials, 14 (2012) 785–789.
doi: 10.1002/adem.201200044

Yunping Li, Yui Yamashita, Ning Tang, Bin Liu, Shingo Kurosu, Hiroaki Matsumoto,Yuichiro Koizumi, Akihiko Chiba, "Influence of Carbon and Nitrogen Addition on Microstructure and Hot Deformation Behavior of Biomedical Co-Cr-Mo Alloy", Materials Chemistry and Physics, 135 (2012) 849-854.
doi: 10.1016/j.matchemphys.2012.05.069

Manami Mori, Kenta Yamanaka, Shigeo Sato, Kazuaki Wagatsuma, Akihiko Chiba, "Microstructures and Mechanical Properties of Biomedical Co-29Cr-6Mo-0.14N Alloys Processed by Hot Rolling", Metallurgical and Materials Transactions A, 43A (2012) 3108–3119.
doi: 10.1007/s11661-012-1156-y

Kenta Yamanaka, Manami Mori, Akihiko Chiba, "Nitrogen-induced dynamic strain aging in a biomedical-grade Co-Cr-Mo alloy", Materials Science and Engineering A 552 (2012) 69–75.
doi: 10.1016/j.msea.2012.05.003

千葉晶彦, 黒須信吾, "生体用コバルトクロム合金の制御造形 –逆変態/微細化プロセスによる高強度化–", 化学工業 63 (2012) 555–564.

Keita Yoda, Suyalatu, Atsushi Takaichi, Naoyuki Nomura, Yusuke Tsutsumi, Hisashi Doi, Shingo Kurosu, Akihiko Chiba, Yoshimasa Igarashi, Takao Hanawa, "Effects of chromium and nitrogen content on the microstructures and mechanical properties of as-cast Co–Cr–Mo alloys for dental applications", Acta Biomaterialia 8 (2012) 2856–2862.
doi: 10.1016/j.actbio.2012.03.024

Ning Tang, Yunping Li, Shingo Kurosu, Yuichiro Koizumi, H. Matsumoto, Akihiko Chiba, "Interfacial reactions of solid Co and solid Fe with liquid Al", Corrosion Science 60 (2012) 32-37.
doi: 10.1016/j.corsci.2012.04.015

Toshiyuki Akanuma, Hiroaki Matsumoto, Shigeo Sato, Akihiko Chiba, Ikuhiro Inagaki, Yoshihisa Shirai, Takashi Maeda, "Enhancement of athermal α″ martensitic transformation in Ti–10V–2Fe–3Al alloy due to high-speed hot deformation", Scripta Materialia 67 (2012) 21-24.
doi: 10.1016/j.scriptamat.2012.03.011

Bin Liu, Hiroaki Matsumoto, Yunping Li, Yuichiro Koizumi, Yong Liu, Akihiko Chiba, "Dynamic Phase Transformation during Hot-Forging Process of a Powder Metallurgy α+β Titanium Alloy", Materials Transactions 53 (2012) 1007-1010.
doi: 10.2320/matertrans.M2012042

Koretaka Yuge, Yuichiro Koizumi, Koji Hagihara, Takayoshi Nakano, Kyosuke Kishida, and Haruyuki Inui, "First-principles study on phase stability of MoSi₂-NbSi₂ pseudobinary alloys", PHYSICAL REVIEW B 85 (2012) 134106
http://link.aps.org/doi/10.1103/PhysRevB.85.134106

Yuichiro Koizumi, Takeshi Nukaya, Shou Suzuki, Shingo Kurosu, Yunping Li, Hiroaki Matsumoto, Kazuhisa Sato, Yuji Tanaka and Akihiko Chiba, "Suzuki Segregation in Co–Ni-based Superalloy at 973 K: an experimental and computational study by phase-field simulation", Acta Materialia 60 (2012) 2901-2915.
doi: 10.1016/j.actamat.2012.01.054

Julien Favre, Akihiko Chiba, Yuichiro Koizumi, Damien Fabregue, Eric Maire, "Dynamic Recrystallization of Biomedical Co-Cr-W-Ni (L-605) Alloy", Materials Science Forum 706-709 (2012) 472–477.
http://www.scientific.net/MSF.706-709.472

Kenta Yamanaka, Manami Mori, Yunping Li, Yuichiro Koizumi, Akihiko Chiba, "Dynamic strain aging in biomedical Co–Cr–Mo-based alloys with nitrogen doping", Key Engineering Materials 508 (2012) 141-145.
http://www.scientific.net/KEM.508.141

Yunping Li, Jinshan Yu, Shingo Kurosu, Yuichiro Koizumi, Hiroaki Matsumoto, Akihiko Chiba, "Role of Nitrogen Addition in Stabilizing the γ Phase of Co-29Cr-6Mo Alloy", Materials Chemistry and Physics 133 (2012) 29–32.
doi: 10.1016/j.matchemphys.2011.12.081

Yunping Li, Manabu Enoki, "Twinning Behavior of Pure Magnesium Quantitatively Investigated by Acoustic Emission", Materials Science and Engineering A 536 (2012) 8-13.
doi: 10.1016/j.msea.2011.10.010

2011

Yui Yamashita, Yunping Li, Hiroaki Matsumoto, Yuichiro Koizumi and Akihiko Chiba, "Construction of Processing Map for Biomedical Co-29Cr-6Mo-0.23C-0.14N Alloy by Using Compression Tests", Materials Transactions 52 (2011) 780-786.
doi: 10.2320/matertrans.M2010388

Yunping Li, Manabu Enoki, "Anelastic recovery of pure magnesium quantitatively eveluated by acoustic emission", Journal of Materials Research 26 (2011) 3098-3106.
doi: 10.1557/jmr.2011.369

Yunping Li, Emi Onodera, Hiroaki Matsumoto, Yuichiro Koizumi, Shu Yu, Akihiko Chiba, "Development of Novel Methods for Compensation of Stress-strain Curves", ISIJ International 51 (2011) 782-787.
doi: 10.2355/isijinternational.51.782

Yuichiro Koizumi, Samuel M. Allen, Masayuki Ouchi, Yoritoshi Minamino, Akihiko Chiba, "Phase-field Simulation of D03-type Antiphase Boundary Migration in Fe3Al with Vacancy and Solute Segregation", Solid State Phenomena 172-174 (2011) 1313-1319.
http://www.scientific.net/SSP.172-174.1313

Ning Tang, Yunping Li, Shingo Kurosu, Hiroaki Matsumoto, Yichiro Koizumi, Akihiko Chiba, "Interfacial reactions between molten Al and a Co–Cr–Mo alloy with and without oxidation treatment", Corrosion Science 53 (2011) 4324-4326.
doi: 10.1016/j.corsci.2011.08.015

Bin Liu, Yong Liu, Yunping Li, Wei Zhang, Akihiko Chiba, "Thermomechanical characterization of beta-stabilized Ti-45Al-7Nb-0.4W-0.15B alloy", Intermetallics 19 (2011) 1184-1190.
doi: 10.1016/j.intermet.2011.03.021

Kenta Yamanaka, Manami Mori, Akihiko Chiba, "Mechanical properties of as-forged Ni-free Co-29Cr-6Mo alloys with ultrafine-grained microstructure" Materials Science and Engineering A 528 (2011) 5961-5966.
doi: 10.1016/j.msea.2011.04.027

Yuichiro Koizumi, Masato Yoshiya, Atsushi Sugihara, Yoritoshi Minamino, "Effects of impurity atoms on α2/γ lamellar interfacial misfit in Ti-Al alloy: a systematic first principles study", Philosophical Magazine 91 (2011) 3685-3704.
doi: 10.1080/14786435.2011.588971

Bin Liu, Yunping Li, Hiroaki Matsumoto, Yanbin Liu, Yong Liu, Akihiko Chiba, "Thermomechanical characterization of P/M Ti-Fe-Mo-Y alloy with a fine lamellar microstructure", Materials Science and Engineering A 528 (2011) 2345-2352.
doi: 10.1016/j.msea.2010.12.055

B.S. Lee, H. Matsumoto, A. Chiba, "Fractures in tensile deformation of biomedical Co-Cr-Mo-N alloys", Materials Letters 65 (2011) 843-846.
doi: 10.1016/j.matlet.2010.12.007

S. Kurosu, H. Matsumoto, A. Chiba, C. Landron, D. Fabregue, E. Maire, "The damage process in a biomedical Co-29Cr-6Mo-0.14N alloy analyzed by X-ray tomography and electron backscattered diffraction", Scripta Materialia 64 (2011) 367-370.
doi: 10.1016/j.scriptamat.2010.07.032

Hiroaki Matsumoto, Hiroshi Yoneda, Damien Fabregue, Eric Maire, Akihiko Chiba, Fumihiko Gejima, "Mechanical behaviors of Ti-V-(Al, Sn) alloys with α' martensite microstructure", Journal of Alloys and Compounds 509 (2011) 2684-2692.
doi: 10.1016/j.jallcom.2010.11.089

H. Matsumoto, S.H. Lee, Y. Ono, Y. Li, A. Chiba, "Formation of refined grain microstructure of Ti-6Al-4V alloy by hot deformation of α' martensite starting microstructure", Advanced Engineering Materials 13 (2011) 470–474.
doi: 10.1002/adem.201000317

Hiroaki Matsumoto, Hiroshi Yoneda, Kazuhisa Sato, Shingo Kurosu, Eric Maire, Damien Fabregue, Toyohiko J. Konno, Akihiko Chiba, "Room-temperature ductility of Ti-6Al-4V alloy with alpha ' martensite microstructure", Materials Science and Engineering A 528 (2011) 1512-1520.
doi: 10.1016/j.msea.2010.10.070

中村英文, 豊島寿隆, 大津秀則, 千葉晶彦, 阿部孝悦 "水噴霧Zrプレアロイ粉末を用いた2mass%-Ni-Fe焼結部品製造の検討", 粉体および粉末冶金 58 (2011) 38－44.
doi: 10.2497/jjspm.58.38

中村英文, 豊島寿隆, 大津秀則, 千葉晶彦, 阿部孝悦 "Zr添加316L粉末の焼結特性に及ぼすSi含有量の影響", 粉体および粉末冶金 58 (2011) 27-32.
doi: 10.2497/jjspm.58.27

2010

Y.P. Li, E. Onodera, A. Chiba, "Evaluation of friction coefficient by simulation in bulk metal forming process", Metallurgical and Materials Transactions A 41 (2010) 224-232.
doi: 10.1007/s11661-009-0066-0

李云平, 小野寺恵美, 松本洋明, 山中謙太, 千葉晶彦, "生体用Co-29Cr-6Mo-0.16N合金の高温圧縮試験における摩擦/加工発熱補正と高精度 Processing Map の構築", 塑性と加工 51 (2010) 221-226.

小野寺恵美, 黒須信吾, 李云平, 松本洋明, 千葉晶彦, "インテリジェント鍛造法によるNiフリーCo-Cr-Mo合金製人工股関節ステムの成形加工プロセスの検討", 塑性と加工 51 (2010) 227-232.

小田原忠良, 前川雄二, 松本洋明, 千葉晶彦, "生体用 Co-Cr-Mo 合金の熱間型鍛造加工時に形成される温間加工組織の静的再結晶挙動と機械的性質の変化", 塑性と加工 51 (2010) 233-239.

Manami Mori, Kenta Yamanaka, Hiroaki Matsumoto, Akihiko Chiba, "Evolution of cold-rolled microstructures of biomedical Co-Cr-Mo alloys with and without N doping" Materials Science and Engineering A 528 (2010) 614-621.
doi: 10.1016/j.msea.2010.09.002

Shingo Kurosu, Hiroaki Matsumoto, Akihiko Chiba, "Grain reﬁnement of biomedical Co–27Cr–5Mo–0.16N alloy by reverse transformation", Materials Letters 64 (2010) 49–52.
doi: 10.1016/j.matlet.2009.10.001

H. Nakamura, H. Toyoshima, A. Chiba, K. Abe, "Effect of addition of a small amount of Zr on the sintering behavior of water atomized 316L stainless steel powder", 粉体および粉末冶金 57 (2011) 126-133.
doi: 10.2497/jjspm.57.126

H. Nakamura, Y. Sato, A. Chiba, M. Murakami, N. Nomura, T. Hanawa, K. Abe, "Mechanical properties of Zr added cocrmo alloy sintered compact produced by MIM process", 粉体および粉末冶金 57 (2010) 118-125.
doi: 10.2497/jjspm.57.118

Y. Murayama, S. Sasaki, H. Kimura, A. Chiba, "Mechanical properties of Ti-Cr-Sn-Zr alloys", Materials Science Forum 638-642 (2010) 635-640.
doi: 10.4028/www.scientific.net/MSF.638-642.635

T. Otomo, H. Matsumoto, N. Nomura, A. Chiba, "Influence of cold-working and subsequent heat-treatment on young's modulus and strength of Co-Ni-Cr-Mo Alloy", Materials Transactions 51 (2010) 434-441.
doi: 10.2320/matertrans.M2009327

H. Yamagishi, M. Fukuhara, A. Chiba, "Residual stress behavior of rolled aluminum alloy A2024T3 in a thin plate during cyclic-tension fatigue studied using ultrasonic horizontally polarized shear waves", Materials Transactions 51 (2010) 962-968.
doi: 10.2320/matertrans.M2009356

Y. Li, E. Onodera, A. Chiba, "Friction coefficient in hot compression of cylindrical sample", Materials Transactions 51 (2010) 1210-1215.
doi: 10.2320/matertrans.M2010056

Liu, B., Li, Y.P., Matsumoto, H., Liu, Y.B., Liu, Y., Tang, H.P., Chiba, A., "Thermomechanical response of particulate-reinforced powder metallurgy titanium matrix composites-A study using processing map", Materials Science and Engineering A 527 (2010) 4733-4741.

Yamagishi, H., Fukuhara, M., Chiba, A., "Determination of the cyclic-tension fatigue of extruded pure magnesium using multiple ultrasonic waves", Materials Transactions 51 (2010) 1255-1263.

Murakami, M., Nomural, N., Doi, H., Tsutsumi, Y., Nakamura, H., Chiba, A., Hanawa, T., "Microstructures of Zr-added Co-Cr-Mo alloy compacts fabricated with a metal injection molding processand their metal release in 1 mass % lactic acid", Materials Transactions 51 (2010) 1281-1287.

Yamagishi, H., Fukuhara, M., Matsumoto, H., Chiba, A., "Cyclic-tension fatigue behavior in a rolled AZ31B magnesium alloy studied using ultrasonic shear waves", Metallurgical and Materials Transactions A 41 (2010) 2151-2161.

Murayama, Y., Sasaki, S., Kimura, H., Chiba, A., "Phase stability and mechanical properties of Ti-Cr based alloys with low Young's modulus", Materials Science Forum 654-656 (2010) 2114-2117.

Li, Y., Kurosu, S., Onodera, E., Matsumoto, H., Chiba, A., "Dynamic recrystallization behavior of biomedical CCM alloys in hot compression process", Materials Science Forum 654-656 (2010) 1275-1278.

Kurosu, S., Li, Y., Matsumoto, H., Chiba, A., "Grain refining technique and mechanical properties of the biomedical Co-Cr-Mo alloy", Materials Science Forum 654-656 (2010) 2184-2187.

Matsumoto, H., Yoneda, H., Sato, K., Konno, T.J., Kurosu, S., Fabregue, D., Maire, E., Chiba, A., "Microstructure and mechanical properties of α′ martensite type Ti-V-Al alloy after cold- or hot working process", Key Engineering Materials 436 (2010) 171-177.

Yamashita, Y., Li, Y., Onodera, E., Matsumoto, H., Chiba, A., "Dynamic recrystallization behavior of biomedical CCM alloy with additions of C and N", Materials Transactions 51 (2010) 1633-1639.

Sato, K., Matsumoto, H., Kodaira, K., Konno, T.J., Chiba, A., "Phase transformation and age-hardening of hexagonal α′ martensite in Ti-12 mass%V-2 mass%Al alloys studied by transmission electron microscopy", Journal of Alloys and Compounds 506 (2010) 607-614.

Kurosu, S., Matsumoto, H., Chiba, A., "Isothermal phase transformation in biomedical Co-29Cr-6Mo alloy without addition of carbon or nitrogen", Metallurgical and Materials Transactions A 41 (2010) 2613-2625.

Yamagishi, H., Fukuhara, M., Chiba, A., "Determination of the mechanical properties of extruded pure magnesium during tension-tension low-cycle fatigue using ultrasonic testing", Materials Transactions 51 (2010) 2025-2032.

Matsumoto, H., Kurosu, S., Lee, B.-S., Li, Y., Chiba, A., "Deformation mode in biomedical Co-27% Cr-5% Mo alloy consisting of a single hexagonal close-packed structure", Scripta Materialia 63 (2010) 1092-1095.