[J] 共同セッション：チタン・チタン合金

[J9] Grain refinement in Ti prevents low temperature oxygen embrittlement

*Yan Chong^1,2,3, Reza Gholizadeh¹, Tomohito Tsuru^2,4, Andrew Minor³, Nobuhiro Tsuji^1,2 (1. Department of Materials Science & Engineering, Kyoto University, Kyoto, Japan、2. Elements Strategy Initiative for Structural Materials (ESISM), Kyoto University, Kyoto, Japan、3. Department of Materials Science and Engineering, UC Berkley, CA, USA、4. Nuclear Science and Engineering Center, Japan Atomic Energy Agency, Tokai-mura, Ibaraki, Japan)

キーワード：Titanium、oxygen、grain size、fracture mode

Grain refinement will greatly increase the tensile ductility of Ti-O alloys at low temperatures.