Enhancement of athermal α″ martensitic transformation in Ti-10V-2Fe-3Al alloy due to high-speed hot deformation

Toshiyuki Akanuma; Hiroaki Matsumoto; Shigeo Sato; Akihiko Chiba; Ikuhiro Inagaki; Yoshihisa Shirai; Takashi Maeda

doi:10.1016/j.scriptamat.2012.03.011

Enhancement of athermal α″ martensitic transformation in Ti-10V-2Fe-3Al alloy due to high-speed hot deformation

Toshiyuki Akanuma, Hiroaki Matsumoto, Shigeo Sato, Akihiko Chiba, Ikuhiro Inagaki, Yoshihisa Shirai, Takashi Maeda

金属材料研究所・材料プロセス・評価研究部

研究成果: Article › 査読

27 被引用数 (Scopus)

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This work examines the origin of the athermal α″ martensitic transformation in Ti-10V-2Fe-3Al alloys arising from high-speed hot deformation on the basis of chemical thermodynamics and the change in stored energy introduced by deformation. The value of the martensitic transformation starting temperature (M _s) is strongly affected by various microstructural factors. This work reveals that a high accumulation of dislocation density, greater than 10 ¹⁵ m ^-2, arising from high-speed deformation, resulted in an enhancement of athermal α″ martensitic transformations.

本文言語	English
ページ（範囲）	21-24
ページ数	4
ジャーナル	Scripta Materialia
巻	67
号	1
DOI	https://doi.org/10.1016/j.scriptamat.2012.03.011
出版ステータス	Published - 2012 7月

ASJC Scopus subject areas

材料科学（全般）
凝縮系物理学
材料力学
機械工学
金属および合金

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10.1016/j.scriptamat.2012.03.011

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title = "Enhancement of athermal α″ martensitic transformation in Ti-10V-2Fe-3Al alloy due to high-speed hot deformation",

abstract = "This work examines the origin of the athermal α″ martensitic transformation in Ti-10V-2Fe-3Al alloys arising from high-speed hot deformation on the basis of chemical thermodynamics and the change in stored energy introduced by deformation. The value of the martensitic transformation starting temperature (M s) is strongly affected by various microstructural factors. This work reveals that a high accumulation of dislocation density, greater than 10 15 m -2, arising from high-speed deformation, resulted in an enhancement of athermal α″ martensitic transformations.",

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author = "Toshiyuki Akanuma and Hiroaki Matsumoto and Shigeo Sato and Akihiko Chiba and Ikuhiro Inagaki and Yoshihisa Shirai and Takashi Maeda",

note = "Funding Information: This work was partially supported by a Grant-in-Aid for the Encouragement of Young Scientists (B) (Grant #2276055 ), Ministry of Culture, Science and Education.",

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AU - Akanuma, Toshiyuki

AU - Matsumoto, Hiroaki

AU - Sato, Shigeo

AU - Chiba, Akihiko

AU - Inagaki, Ikuhiro

AU - Shirai, Yoshihisa

AU - Maeda, Takashi

N1 - Funding Information: This work was partially supported by a Grant-in-Aid for the Encouragement of Young Scientists (B) (Grant #2276055 ), Ministry of Culture, Science and Education.

PY - 2012/7

Y1 - 2012/7

N2 - This work examines the origin of the athermal α″ martensitic transformation in Ti-10V-2Fe-3Al alloys arising from high-speed hot deformation on the basis of chemical thermodynamics and the change in stored energy introduced by deformation. The value of the martensitic transformation starting temperature (M s) is strongly affected by various microstructural factors. This work reveals that a high accumulation of dislocation density, greater than 10 15 m -2, arising from high-speed deformation, resulted in an enhancement of athermal α″ martensitic transformations.

AB - This work examines the origin of the athermal α″ martensitic transformation in Ti-10V-2Fe-3Al alloys arising from high-speed hot deformation on the basis of chemical thermodynamics and the change in stored energy introduced by deformation. The value of the martensitic transformation starting temperature (M s) is strongly affected by various microstructural factors. This work reveals that a high accumulation of dislocation density, greater than 10 15 m -2, arising from high-speed deformation, resulted in an enhancement of athermal α″ martensitic transformations.

KW - Dislocation density

KW - Stored energy

KW - Titanium alloy

KW - α″ Martensitic transformation

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Enhancement of athermal α″ martensitic transformation in Ti-10V-2Fe-3Al alloy due to high-speed hot deformation

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