Norimasa Nishiyama (Research Center for Materials Nanoarchitectonics (MANA)/Nanomaterials Field/High-Pressure Structural Controls Group, National Institute for Materials Science) ; Yoshinori Tange (Sumitomo Electric Industries) ; Takashi Sawahata (Laboratory for Materials and Structures, a research laboratory in Institute of Innovative Research, Tokyo Institute of Technology) ; Masafumi Matsushita (Ehime University) ; Kazuya Tokuda (Sumitomo Electric Industries) ; Kosuke Tominaga (Sumitomo Electric Industries) ; Takashi Sekiya (Sumitomo Electric Industries) ; Koji Kuramochi (Sumitomo Electric Industries) ; Keita Sasaki (Sumitomo Electric Industries) ; Fumihiro Wakai (Laboratory for Materials and Structures, a research laboratory in Institute of Innovative Research, Tokyo Institute of Technology) ; Zenji Horita (Kyushu Institute of Technolofy) ; Yutaka Kobayashi (Sumitomo Electric Industries) ; Akio Fujimura (Sumitomo Electric Industries)

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Norimasa Nishiyama, Yoshinori Tange, Takashi Sawahata, Masafumi Matsushita, Kazuya Tokuda, Kosuke Tominaga, Takashi Sekiya, Koji Kuramochi, Keita Sasaki, Fumihiro Wakai, Zenji Horita, Yutaka Kobayashi, Akio Fujimura. High tensile strength and transformation-induced plasticity in bulk polycrystalline omega titanium. Scientific Reports. 2026, 16 (), . https://doi.org/10.1038/s41598-025-33037-z

(BibTeX)

説明:

(abstract)

純チタン組成のアルファ相を原料として、オメガ相バルク体を合成し、引張試験を実施した。その結果、この物質が高強度と高延性を示すことを明らかにした。さらに、引張試験下におけるその場X線回折測定および引張試験後の破断試料のEBSD分析によって、応力誘起マルテンサイト変態が生じていることを見出し、それが変態誘起塑性を発現させていることを明らかにした。

権利情報:

• Creative Commons BY-NC-ND Attribution-NonCommercial-NoDerivs 4.0 International
  

  The version of record of this article, first published in Scientific Reports, is available online at Publisher’s website: https://doi.org/10.1038/s41598-025-33037-z

キーワード: ω phase, High-pressure and temperature, Tensile strength, Martensitic transformation, Transformation-induced plasticity, Titanium

刊行年月日: 2026-02-03

出版者: Springer Science and Business Media LLC

掲載誌:

• Scientific Reports (ISSN: 20452322) vol. 16

研究助成金:

• Japan Society for the Promotion of Science

原稿種別: 著者最終稿 (Accepted manuscript)

MDR DOI: https://doi.org/10.48505/nims.6211

公開URL: https://doi.org/10.1038/s41598-025-33037-z

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更新時刻: 2026-03-10 09:20:25 +0900

MDRでの公開時刻: 2026-03-10 13:44:48 +0900

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