研究成果 Research Achievements

2021年8月23日 日刊工業新聞朝刊23面

金属3Dパズル構造体 力学特性の制御自在 生体内医療デバイス素材に応用

日刊工業新聞朝刊、2021年8月23日、23面 科学技術・大学面トップ記事

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令和2年度日本材料学会生体・医療材料部門研究奨励賞

松垣あいら
「骨機能化の生物学的機序解明とそれに基づく骨配向化誘導材料の開発」
令和2年度日本材料学会生体・医療材料部門研究奨励賞

Surface residual stress and phase stability in unstable β-type Ti-15Mo-5Zr-3Al alloy manufactured by laser and electron beam powder bed fusion technologies

Aya Takase*, Takuya Ishimoto, Ryoya Suganuma, Takayoshi Nakano*:
Surface residual stress and phase stability in unstable β-type Ti-15Mo-5Zr-3Al alloy manufactured by laser and electron beam powder bed fusion technologies,
Additive Manufacturing, 47, (2021), 102257; 1-14.
https://doi.org/10.1016/j.addma.2021.102257

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Reduction of spatter generation using atmospheric gas in laser powder bed fusion of Ti-6Al-4V

Hiroki Amano, Yusuke Yamaguchi, Takuya Ishimoto, Takayoshi Nakano*:
Reduction of Spatter Generation Using Atmospheric Gas in Laser Powder Bed Fusion of Ti–6Al–4V,
Materials Transactions, 62, (2021), 1225-1230.
https://doi.org/10.2320/matertrans.MT-M2021059

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Inverse columnar-equiaxed transition in 304 and 316L stainless steels melt by electron-beam for additive manufacturing

Yuichiro Miyata, Masayuki Okugawa*, Yuichiro Koizumi*, Takayoshi Nakano:
Inverse columnar-equiaxed transition in 304 and 316L stainless steels melt by electron-beam for additive manufacturing,
Crystals, 11 (8), (2021), 856: 1-13.
https://doi.org/10.3390/cryst11080856

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2021年7月15日 日刊工業新聞朝刊22面

高強度・高延性を確立

日刊工業新聞朝刊、2021年7月15日、22面 大学・産学連携面トップ記事

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Improving the tensile properties of additively manufactured β-containing TiAl alloys via microstructure control focusing on cellular precipitation reaction

Ken Cho, Hirotaka Odo, Keisuke Okamoto, Hiroyuki Y. Yasuda*, Hirotoyo Nakashima, Masao Takeyama, Takayoshi Nakano:
Improving the tensile properties of additively manufactured β-containing TiAl alloys via microstructure control focusing on cellular precipitation reaction,
Crystals, 11 (7), (2021), 809; 1-13.
https://doi.org/10.3390/cryst11070809 (registering DOI)

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Comparison of phase characteristics and residual stresses in Ti-6Al-4V alloy manufactured by laser powder bed fusion (L-PBF) and electron beam powder bed fusion (EB-PBF) techniques.

Aya Takase*, Takuya Ishimoto, Naotaka Morita, Naoko Ikeo, Takayoshi Nakano*
Comparison of phase characteristics and residual stresses in Ti-6Al-4V alloy manufactured by laser powder bed fusion (L-PBF) and electron beam powder bed fusion (EB-PBF) techniques.
Crystals, 11(7), (2021), 796; 1-17.
https://doi.org/10.3390/cryst11070796
*: Corresponding author

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Factor which governs the feature of texture developed during additive manufacturing; clarified from the study on hexagonal C40-NbSi2

Koji Hagihara#, Takuya Ishimoto#, Masahiro Suzuki, Ryosuke Ozasa, Aira Matsugaki, Pan Wang, Takayoshi Nakano∗
Factor which governs the feature of texture developed during additive manufacturing; clarified from the study on hexagonal C40-NbSi2,
Scripta Materialia, 203, (2021), 114111; 1-6.
DOI:https://doi.org/10.1016/j.scriptamat.2021.114111
#: The authors equally contributed to this study.
*: Corresponding author

Peculiar microstructural evolution and tensile properties of β-containing γ-TiAl alloys fabricated by electron beam melting

Ken Cho, Hajime Kawabata, Tatsuhiro Hayashi, Hiroyuki Y. Yasuda*, Hirotoyo Nakashima, Masao Takeyama, Takayoshi Nakano:
Peculiar microstructural evolution and tensile properties of β-containing γ-TiAl alloys fabricated by electron beam melting,
Additive Manufacturing, 46, (2021), 102091; 1-12.
https://doi.org/10.1016/j.addma.2021.102091

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DX時代の金属3Dプリンティングによるカスタムメイド骨インプラント

小笹良輔、石本卓也、松垣あいら、中野貴由:
DX時代の金属3Dプリンティングによるカスタムメイド骨インプラント、
BIO Clinica、7月号, 36 [7], (2021), PP674-680 (PP66-72).

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2021年6月8日 日刊工業新聞朝刊21面

ハイエントロピー合金 高い強度・生体親和性 レーザー積層活用 阪大
日刊工業新聞、2021年6月8日、21面(科学技術・大学)

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Effect of precursor deficiency induced Ca/P ratio on antibacterial and osteoblast adhesion properties of Ag-incorporated hydroxyapatite: Reducing Ag toxicity

Ozkan Gokcekaya, Celaletdin Ergun*, Thomas J. Webster, Abdurrahman Bahadir, Kyosuke Ueda, Takayuki Narushima, Takayoshi Nakano:
Effect of precursor deficiency induced Ca/P ratio on antibacterial and osteoblast adhesion properties of Ag-incorporated hydroxyapatite: Reducing Ag toxicity,
Materials, 14, (2021), 3158; 1-18.
https://doi.org/10.3390/ma14123158
*: Corresponding author

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(一社)紛体粉末冶金協会研究功績賞

2021年6月3日
中野貴由
金属三次元積層造形をはじめとする粉体粉末冶金学を基軸にした異方性材料組織制御に関する研究開発、
(一社)紛体粉末冶金協会研究功績賞、(一社)紛体粉末冶金協会

Crystallographic texture- and grain boundary density-independent improvement of corrosion resistance in austenitic 316L stainless steel fabricated via laser powder bed fusion

Yusuke Tsutumi*, Takuya Ishimoto, Tastuya Oishi, Tomoyo Manaka, Peng Chen, Maki Ashida, Kotaro Doi, Hideki Katayama, Takao Hanawa, Takayoshi Nakano*:
Crystallographic texture- and grain boundary density-independent improvement of corrosion resistance in austenitic 316L stainless steel fabricated via laser powder bed fusion,
Additive manufacturing, (2021), 102066; 1-9.
https://doi.org/10.1016/j.addma.2021.102066
*: Corresponding author

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第18回本多フロンティア賞

2021年5月28日
中野貴由
金属材料工学を駆使した骨基質配向化機構解明と制御法の確立、
第18回本多フロンティア賞、(公社)本多記念会

Stability of crystallographic texture in laser powder bed fusion: Understanding the competition of crystal growth using a single crystalline seed

Takuya Ishimotoǂ, Koji Hagiharaǂ, Kenta Hisamoto, Takayoshi Nakano*:
Stability of crystallographic texture in laser powder bed fusion: Understanding the competition of crystal growth using a single crystalline seed,
Additive Manufacturing, (2021), 102004.
https://doi.org/10.1016/j.addma.2021.102004
ǂ These authors contributed equally to this work.

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Lattice distortion in selective laser melting (SLM)-manufactured unstable β-type Ti-15Mo-5Zr-3Al alloy analyzed by high-precision X-ray diffractometry

Aya Takase*, Takuya Ishimoto, Ryoya Suganuma, Takayoshi Nakano*:
Lattice distortion in selective laser melting (SLM)-manufactured unstable β-type Ti-15Mo-5Zr-3Al alloy analyzed by high-precision X-ray diffractometry,
Scripta Materialia, 201, (2021), 113953; 1-6.
https://doi.org/10.1016/j.scriptamat.2021.113953

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2021年5月4日 日刊工業新聞朝刊 1面

ニッケル基合金を高強度化 阪大 耐熱素材で脱酸素貢献 金属3Dプリンター活用

日刊工業新聞朝刊、2021年5月4日、1面トップ記事

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Direct numerical analyses of nanoscale thermal transport near MgO edge dislocations

Wataru Sekimoto, Susumu Fujii, Masato Yoshiya*:

“Direct numerical analyses of nanoscale thermal transport near MgO edge dislocations”,

Scripta Materialia, 202 (2021) 113991.

DOI: https://doi.org/10.1016/j.scriptamat.2021.113991

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