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L-PBF で造形した準安定β型Ti合金におけるヤング率の変化

宮澤啓太郎、小笹良輔、内芝旭祥、清水佑太、中野貴由：L-PBF で造形した準安定β型Ti合金におけるヤング率の変化、スマートプロセス学会誌、14[5], (2025), pp.258-263.

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金属3Dプリンタ用レーザ照射による非等量Ti-Nb-Mo-Ta-W系ハイエントロピー合金の組織形成挙動

小笹良輔、Kim Yong Seong、朝倉光平、堀尾尚平、鰐渕良祐、中野貴由：金属3Dプリンタ用レーザ照射による非等量Ti-Nb-Mo-Ta-W系ハイエントロピー合金の組織形成挙動、スマートプロセス学会誌、14[5], (2025), pp.253-257.

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生体用AMインプラント材料の抗菌特性評価のためのin vitro 共培養モデルの構築

松坂匡晃、小坂朋生、山野大陸、船奥和真、劉甜、松垣あいら、中野貴由：生体用AMインプラント材料の抗菌特性評価のためのin vitro 共培養モデルの構築、スマートプロセス学会誌、14[5], (2025), pp.249-252.

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NiTi coating formation on Ti for enhanced wear resistance utilizing electron-beam additive manufacturing technique

Lei Wang, Masayuki Okugawa, Yuheng Liu , Ken Cho, Hiroyuki Y. Yasuda, Takayoshi Nakano, Yuichiro Koizumi:
NiTi coating formation on Ti for enhanced wear resistance utilizing electron-beam additive manufacturing technique,
Surfaces and Interfaces, 72, (2025), 107024; 1-14.
DOI: https://doi.org/10.1016/j.surfin.2025.107024

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Comparison and Evolution of Ti6Al4V Bioalloy Fabricated by Laser and Electron beam Additive Manufacturing: Mechanical Features and Anisotropic Electrochemical Properties

Parinaz Mofazali, Masoud Atapour*, Ozkan Gokcekaya, Sung-Hyun. Park, Batur Ercan, Takayoshi Nakano: Comparison and Evolution of Ti6Al4V Bioalloy Fabricated by Laser and Electron beam Additive Manufacturing: Mechanical Features and Anisotropic Electrochemical Properties,
Materials Today Communications, (2025), 113124: 1-14.
DOI: https://doi.org/10.1016/j.mtcomm.2025.113124

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Remarkable Strengthening Effects of Cells in Laser Powder Bed Fusion Processed Inconel 718

Taichi Kikukawa, Takuya Ishimoto*, Hyoung Seop Kim, Takayoshi Nakano*:
Remarkable Strengthening Effects of Cells in Laser Powder Bed Fusion Processed Inconel 718,
Materials Research Letters, (2025).
DOI: https://doi.org/10.1080/21663831.2025.2522801

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Impacts of excess vacancies on order-domain growth in D03 Fe3Al intermetallic phase

Masayuki Okugawa, Madoka Watanabe, Satoshi Ichikawa, Kazuhisa Sato, Yuheng Liu, Hiroyuki Y. Yasuda, Yuichiro Koizumi:

Impacts of excess vacancies on order-domain growth in D03 Fe3Al intermetallic phase,

Scripta Materialia, Vol.267, 1 October 2025, 116812

DOI:https://doi.org/10.1016/j.scriptamat.2025.116812

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Layered Na₂Ti₃O₇-supported Ru catalyst for ambient CO₂ methanation

Hyo-Jin Kim, Kohsuke Mori*, Satoshi Ichikawa, Takayoshi Nakano, Hiromi Yamashita:
Layered Na₂Ti₃O₇-supported Ru catalyst for ambient CO₂ methanation,
Nature Communications, 16, (2025), 2697; 1-9.
DOI: https://doi.org/10.1038/s41467-025-57954-9

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On the enhanced creep performance in Ti6246 achieved through Laser Powder Bed Fusion (LPBF) processing

Prince Valentine Cobbinah*, Sae Matsunaga, Yoshiaki Toda, Ryosuke Ozasa, Takuya Ishimoto, Takayoshi Nakano, Tsutomu Ito, Yoko Yamabe-Mitarai:*
On the enhanced creep performance in Ti6246 achieved through Laser Powder Bed Fusion (LPBF) processing,
Metallurgical and Materials Transactions A, (2025), in press.
DOI: https://doi.org/10.1007/s11661-025-07759-8

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Raking and Fusing Behaviors during Fabrication of Multiple-layers in Powder Bed Fusion: An integrated discrete Element and computational thermal fluid Dynamics Study

Shuhei Mino, Masayuki Okugawa, Takayoshi Nakano, Yuichiro Koizumi:
Raking and Fusing Behaviors during Fabrication of Multiple-layers in Powder Bed Fusion: An integrated discrete Element and computational thermal fluid Dynamics Study
Journal of the Japan Society of Powder and Powder Metallurgy, 72, (2025), 16P-T6-11; S1465-S1469.
https://doi.org/10.2497/jjspm.16P-T6-11

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In-situ alloying of nonequiatomic TiNbMoTaW refractory bio-high entropy alloy via laser powder bed fusion: Achieving suppressed microsegregation and texture formation

Yong Seong Kim, Ozkan Gokcekaya*, Kazuhisa Sato, Ryosuke Ozasa, Aira Matsugaki, Takayoshi Nakano*:
In-situ alloying of nonequiatomic TiNbMoTaW refractory bio-high entropy alloy via laser powder bed fusion: Achieving suppressed microsegregation and texture formation,
Materials & Design, 252, (2025), 113824; 1-18.
https://doi.org/10.1016/j.matdes.2025.113824

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Phase-separation induced dislocation-network cellular structures in Ti-Zr-Nb-Mo-Ta high-entropy alloy processed by laser powder bed fusion

Han Chen, Daisuke Egusa*, Zehao Li, Taisuke Sasaki, Ryosuke Ozasa , Takuya Ishimoto, Masayuki Okugawa, Yuichiro Koizumi, Takayoshi Nakano, Eiji Abe*
Phase-separation induced dislocation-network cellular structures in Ti-Zr-Nb-Mo-Ta high-entropy alloy processed by laser powder bed fusion,
Additive manufacturing, 102, (2025), 104737; 1-14.
https://doi.org/10.1016/j.addma.2025.104737

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Low Young’s modulus in laser powder bed fusion processed Ti-15Mo-5Zr-3Al alloys achieved by the control of crystallographic texture combined with the retention of low-stability bcc structure

Shota Higashino, Daisuke Miyashita , Takuya Ishimoto, Eisuke Miyoshi, Takayoshi Nakano, Masakazu Tane*:
Low Young’s modulus in laser powder bed fusion processed Ti-15Mo-5Zr-3Al alloys achieved by the control of crystallographic texture combined with the retention of low-stability bcc structure,
Additive Manufacturing, 102 (2025), 104720; 1-13.
https://doi.org/10.1016/j.addma.2025.104720

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Ultra-precision surface treatment of beta-Titanium alloy printed using laser and electron beam melting sources

Jibin Boban*, Afzaal Ahmed, Ozkan Gokcekaya , Takayoshi Nakano:
Ultra-precision surface treatment of beta-Titanium alloy printed using laser and electron beam melting sources,
CIRP Journal of Manufacturing Science and Technology, 58, (2025), 01.006; 1-19.
https://doi.org/10.1016/j.cirpj.2025.01.006

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Superimpositional design of crystallographic textures and macroscopic shapes via metal additive manufacturing–Game-change in component design

Takuya Ishimoto, Naotaka Morita, Ryosuke Ozasa, Aira Matsugaki, Ozkan Gokcekaya, Shota Higashino, Masakazu Tane, Tsuyoshi Mayama, Ken Cho, Hiroyuki Y. Yasuda, Masayuki Okugawa, Yuichiro Koizumi, Masato Yoshiya, Daisuke Egusa, Taisuke Sasaki, Eiji Abe, Hajime Kimizuka, Naoko Ikeo, Takayoshi Nakano*:
Superimpositional design of crystallographic textures and macroscopic shapes via metal additive manufacturing–Game-change in component design, Acta Materialia, (2025), 1-12.
DOI: https://doi.org/10.1016/j.actamat.2025.120709

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Rational design of stainless steel self-catalytic reactors for CO2 methanation: Extending from metal powder to 3D-printed reactor

Hyo-Jin Kim, Kohsuke Mori*, Takayoshi Nakano, Hiromi Yamashita:
Rational design of stainless steel self-catalytic reactors for CO2 methanation: Extending from metal powder to 3D-printed reactor,
Catalysis Science & Technology, (2025), in press.

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The effect of energy density on microstructural, mechanical, and corrosion characteristics of Ti6Al-4V alloy fabricated via selective laser melting (SLM) and electron beam melting (EBM) techniques

H. Yilmazer, Y. A. Sadikoglu, S. Kucuk, O. Gokcekaya, I. C. Turu, T. Nakano, B. Dikici*:
The effect of energy density on microstructural, mechanical, and corrosion characteristics of Ti6Al-4V alloy fabricated via selective laser melting (SLM) and electron beam melting (EBM) techniques,
Journal of Materials Engineering and Performance, (2024), in press.
https://doi.org/10.1007/s11665-024-10512-8

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Effects of heat accumulation strategies on defects and microstructure of pure chromium fabricated by laser powder bed fusion: An experimental and numerical study

Sung-Hyun Park, Ozkan Gokcekaya*, Tatsuya Nitomakida, Takayoshi Nakano*:
Effects of heat accumulation strategies on defects and microstructure of pure chromium fabricated by laser powder bed fusion: An experimental and numerical study,
Journal of Materials Research and Technology, (2024): 1-12.
https://doi.org/10.1016/j.jmrt.2024.11.049

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Quantitative revealing the solute segregation behavior at melt pool boundary in additively manufactured stainless steel using a novel processing method for precise positioning by HAADF-STEM

Fei Sun*, Yoshitaka Adachi, Kazuhisa Sato, Takuya Ishimoto, Takayoshi Nakano, Yuichiro Koizumi:
Quantitative revealing the solute segregation behavior at melt pool boundary in additively manufactured stainless steel using a novel processing method for precise positioning by HAADF-STEM,
Materials Characterization, Materials Characterization, 217, (2024), 114435: 1-6.
https://doi.org/10.1016/j.matchar.2024.114435

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Laser energy-dependent processability of non-equiatomic TiNbMoTaW high-entropy alloy through in-situ alloying of elemental feedstock powders by laser powder bed fusion

Yong Seong Kim, Ozkan Gokcekaya, Aira Matsugaki, Ryosuke Ozasa, Takayoshi Nakano*: Laser energy-dependent processability of non-equiatomic TiNbMoTaW high-entropy alloy through in-situ alloying of elemental feedstock powders by laser powder bed fusion, Materialia, 38, (2024), 102241: 1-10.
https://doi.org/10.1016/j.mtla.2024.102241

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