論文

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

論文はこちら

論文

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

論文はこちら

論文

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

プレリリースはこちら
論文はこちら
PDFはこちら

論文

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

論文

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

論文はこちら
PDFはこちら

論文

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

論文はこちら
PDFはこちら

論文

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

論文はこちら
PDFはこちら

論文

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

論文はこちら
PDFはこちら

論文

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

論文はこちら
PDFはこちら

論文

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

論文はこちら
PDFはこちら