論文 Paper

  1. 2026年 (18)
  2. 2025年 (27)
  3. 2024年 (26)
  4. 2023年 (28)
  5. 2022年 (16)
  6. 2021年 (36)
  7. 2020年 (15)
  8. 2019年 (27)
  9. 2018年 (20)
  10. 2017年 (30)
  11. 2016年 (36)
  12. 2015年 (12)

論文

Development of a single-crystalline-like texture in 316L stainless steel using a novel brick scan strategy in laser-powder bed fusion

Ryosuke Ozasa, Ryota Watanabe, Shogo Hirata, Takuya Ishimoto, Takayoshi Nakano*:
Development of a single-crystalline-like texture in 316L stainless steel using a novel brick scan strategy in laser-powder bed fusion,
ISIJ International, 66 [9], (2026), in press.

論文

Hot isostatic pressing temperature-driven microstructure-tribology relationships in laser powder bed fused pure chromium

Ozkan Gokcekaya,Asli Gunay Bulutsuz,Buse Gulec,Ali Gunen,Hakan Yilmazer,Takayoshi Nakano:
Hot isostatic pressing temperature-driven microstructure-tribology relationships in laser powder bed fused pure chromium,
Journal of Materials Research and Technology,(2026),in press.

DOI: https://doi.org/10.1016/j.jmrt.2026.06.191

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論文

Machine learning-assisted grain boundary segmentation reveals nanoscale heat treatment behavior of additively manufactured 316L stainless steel

Shiro Ihara, Shunsuke Sato, Ryosuke Ozasa, Takayoshi Nakano, Mitsuhiro Murayama:
Machine learning-assisted grain boundary segmentation reveals nanoscale heat treatment behavior of additively manufactured 316L stainless steel,
Materials & Design, (2026), in press.

DOI:10.1016/j.matdes.2026.116450

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論文

Design-process-property characterization of Ti-6Al-4V wave springs manufactured via the electron beam powder bed fusion process

Niyonkuru Benjamin, Kashif Azher, Muhammad Rizwan ul Haq, Ozkan Gokcekaya, Takayoshi Nakano, Aamer Nazir:
Design-process-property characterization of Ti-6Al-4V wave springs manufactured via the electron beam powder bed fusion process,
International Journal of Lightweight Materials and Manufacture, (2026)

DOI: https://doi.org/10.1016/j.ijlmm.2026.05.004

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論文

Systematic study of rapid solidification in laser powder-bed fusion of stainless steels to verify applicability of columnar equiaxed Transition

Kishin Fukushima, Masayuki Okugawa, Yuichiro Miyata, Rei Miyawaki, Yuheng Liu, Yuichiro Koizumi, Takayoshi Nakano:
Systematic study of rapid solidification in laser powder-bed fusion of stainless steels to verify applicability of columnar equiaxed Transition,
ISIJ International, (2026), in press.

DOI:https://doi.org/10.2355/isijinternational.ISIJINT-2026-038

論文

Design of a novel scanning strategy for formation of extremely strong textures in hexagonal materials through laser powder bed fusion

Ryosuke Ozasa, Yuta Kizawa, Kakeru Okawa, Koji Hagihara, Kazuhisa Sato, Toshiharu Matsumoto, Toko Tokunaga, Naoko Ikeo, Viritpon Srimaneepong, Pan Wang, Dorte Juul Jensen, Takayoshi Nakano*:
Design of a novel scanning strategy for formation of extremely strong textures in hexagonal materials through laser powder bed fusion,
Materials & Design, (2026), in press.

DOI:10.1016/j.matdes.2026.116307

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論文

Fully single-crystallization of IN738LC Ni-based superalloy fabricated by laser powder-bed fusion through optimal thermal annealing

Masayuki Okugawa, Kazufumi Nose, Sei Hirooka, Sukeharu Nomoto, Yuheng Liu, Makoto Watanabe, Yuichiro Koizumi, Takayoshi Nakano:
Fully single-crystallization of IN738LC Ni-based superalloy fabricated by laser powder-bed fusion through optimal thermal annealing,
Materials & Design, 266, (2026), 116222: 1-11.

DOI: https://doi.org/10.1016/j.matdes.2026.116222

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論文

Introducing a novel fabrication route for metastable β-type Ti-Cr-Sn alloys with ultra-high Sn content using pure elemental mixed powders via laser powder bed fusion, Additive Manufacturing

Naoki Nohira*, Cheng Chen, Yilin Jin, Wan-Ting Chiu, Akira Umise, Takeshi Teramoto, Masaki Tahara*, Ryosuke Ozasa, Takuya Ishimoto, Yuichiro Koizumi, Takayoshi Nakano, Hideki Hosoda:
Introducing a novel fabrication route for metastable β-type Ti-Cr-Sn alloys with ultra-high Sn content using pure elemental mixed powders via laser powder bed fusion,
Additive Manufacturing, (2026), in press.

DOI:10.1016/j.addma.2026.105213

論文

Formation of a bi-directional α₂/γ lamellar microstructure through crystallographic texture control in a γ-TiAl alloy fabricated by laser powder bed fusion, Journal of Materials Research and Technology

Sung-Hyun Park, Ozkan Gokcekaya, Kazuhisa Sato, Ji-Sung Park, Chae-Won Kim, Myung-Hoon Oh, Seong-Woong Kim*, Takayoshi Nakano*:
Formation of a bi-directional α₂/γ lamellar microstructure through crystallographic texture control in a γ-TiAl alloy fabricated by laser powder bed fusion,
Journal of Materials Research and Technology, 42 (2026) 2625-2637.

DOI: https://doi.org/10.1016/j.jmrt.2026.03.273

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論文

PdAg Nanoparticles Supported on Na₂Ti₃O₇ for CO₂ Hydrogenation into Formic Acid: Expanding Catalyst Design from Powder to Metal 3D-printed Self-Catalytic Reactor, ACS Applied Energy Materials

Naoyuki Hayashida, Hyo-Jin Kim, Kazuki Shun, Hideto Yoshida, Takayoshi Nakano, Kohsuke Mori*:
PdAg Nanoparticles Supported on Na₂Ti₃O₇ for CO₂ Hydrogenation into Formic Acid: Expanding Catalyst Design from Powder to a Metal 3D-Printed Self-Catalytic Reactor,
ACS Applied Energy Materials, (2026)

DOI: https://doi.org/10.1021/acsaem.6c00086

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論文

Integrated Computational and Experimental Study on Rapid Heating and Cooling Conditions in Powder-Bed Fusion of Al-Si Hypoeutectic Alloys

Masayuki Okugawa, Yuya Furushiro, Seori Motoyama, Yuheng Liu, Takayoshi Nakano, Yuichiro Koizumi :
Integrated Computational and Experimental Study on Rapid Heating and Cooling Conditions in Powder-Bed Fusion of Al-Si Hypoeutectic Alloys, Vol. 67, No. 4 (2026) pp. 535 to 542

DOI: http://doi.org/10.2320/matertrans.MT-M2025132

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論文

Porphyrin-Embedded Organosilica Photocatalysts for Efficient Hydrogen Peroxide Production,

Yoshifumi Kondo,Shiori Mizutani,Yasutaka Kuwahara,Kohsuke Mori,Tohru Sekino,Ting Zhang,Zhenfeng Bian,Hexing Li, Hiromi Yamashita：
Porphyrin-Embedded Organosilica Photocatalysts for Efficient Hydrogen Peroxide Production,
Chemistry – A European Journal, (2026) e00026

DOI:https://doi.org/10.1002/chem.202600026

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論文

Data-Selective Machine Learning Framework (DSML) for Defect-Aware, Interpretable Yield-Strength Prediction for LPBF Fabricated AlSi10Mg Alloys

Jeong Ah Lee, Yeon Woo Kim, Takayoshi Nakano, Hyomoon Joo, Jeong Min Park*, Hyoung Seop Kim*:
Data-Selective Machine Learning Framework (DSML) for Defect-Aware, Interpretable Yield-Strength Prediction for LPBF Fabricated AlSi10Mg Alloys, Acta Materialia, 309 (2026) 122101.

DOI: https://doi.org/10.1016/j.actamat.2026.122101

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論文

Dual-linker incorporating hydrophobic metal–organic frameworks for photosynthesis of hydrogen peroxide

Yoshifumi Kondo,Kotaro Honda,Shiori Mizutani,Yasutaka Kuwahara,Kohsuke Mori,Tohru Sekino,Hiromi Yamashita:
Dual-linker incorporating hydrophobic metal–organic frameworks for photosynthesis of hydrogen peroxide,
Applied Catalysis B: Environment and Energy, Volume 391, (2026), 126632.

DOI:https://doi.org/10.1016/j.apcatb.2026.126632

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論文

Single-track investigation of rapid solidification conditions of Hastelloy-X Ni-based superalloy in laser powder-bed fusion and applicability of columnar equiaxed transition criteria

Masayuki Okugawa, Haruki Yoshima, Yuheng Liu, Pan Wang, Yuichiro Koizumi, Takayoshi Nakano:
Single-track investigation of rapid solidification conditions of Hastelloy-X Ni-based superalloy in laser powder-bed fusion and applicability of columnar equiaxed transition criteria, Virtual and Physical Prototyping, 21 (2026) e2639906.

DOI: https://doi.org/10.1080/17452759.2026.2639906

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論文

Microstructural evolution and wear resistance enhancement of electron-beam-fabricated nickel titanium coatings on titanium by heat treatment

Lei Wang, Masayuki Okugawa*, Yuheng Liu, Ken Cho, Yuichiro Koizumi*, Hiroyuki Y. Yasuda and Takayoshi Nakano:
Microstructural Evolution and Wear Resistance Enhancement of Electron-Beam-Fabricated Nickel Titanium Coatings on Titanium by Heat Treatment,
Materials Transactions, 67 (2026) 771-782.

DOI: https://doi.org/10.2320/matertrans.MT-M2025170

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論文

In situ Alloyed Refractory High Entropy Alloy by Laser Powder Bed Fusion

Yong Seong Kim, Ozkan Gokcekaya, Ryosuke Ozasa, Takayoshi Nakano:
In situ Alloyed Refractory High Entropy Alloy by Laser Powder Bed Fusion, Materials Science Forum, 1175 (2026) 105-110.

DOI: 10.4028/p-0OnKo3

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論文

Influence of Hierarchical Structure on Mechanical Properties of Additive Manufactured IN718 Alloys

Kippei Yamashita, Ken Cho, Takuma Saito, Taisuke Sasaki, Katsuhiko Sawaizumi, Masayuki Okugawa, Yuichiro Koizumi, Takayoshi Nakano, Hiroyuki Y. Yasuda:
Influence of Hierarchical Structure on Mechanical Properties of Additive Manufactured IN718 Alloys, Materials Science Forum, 1175 (2026) 129-134.

DOI: 10.4028/p-1DlHhB

論文

Manuscript number Integrated computational and experimental study on rapid heating and cooling in powder-bed fusion of Al-Si hypoeutectic alloys

Masayuki Okugawa*, Yuya Furushiro, Seori Motoyama, Yuheng Liu, Takayoshi Nakano, Yuichiro Koizumi: Manuscript number Integrated computational and experimental study on rapid heating and cooling in powder-bed fusion of Al-Si hypoeutectic alloys, Materials Transactions, (2026), in press.

DOI:https://doi.org/10.2320/matertrans.MT-M2025132

 

論文

Identification of lattice defects in laser powder bed fusion-fabricated 316L stainless steel by positron annihilation spectroscopy

Masataka Mizuno*, Masaki Otsuka, Kazuhisa Sato, Takuya Ishimoto, Takayoshi Nakano, Hideki Araki: Identification of lattice defects in laser powder bed fusion-fabricated 316L stainless steel by positron annihilation spectroscopy, Journal of Materials Research and Technology, in press, 40, (2026), 188-193.

DOI: https://doi.org/10.1016/j.jmrt.2025.12.147

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