Oxygen Solid Solution Strengthing in Ta-Stabilized β-Ti alloy

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[J11] Oxygen Solid Solution Strengthing in Ta-Stabilized β-Ti alloy

*YOKOTA Katsuya¹, Shitara Kazuki^2,3, Bahador Abdollah², Umeda Junko², Kondoh Katsuyoshi² (1. Osaka Univ., 2. JWRI, 3. NIMS)

Keywords:チタン合金、Ti-Ta-O合金、酸素固溶、急冷熱処理、β型合金

酸素固溶がβ単相チタン合金の力学特性へ与える影響の調査のため，Ti-Ta-O系混合粉末を焼結し熱処理を施し酸素固溶β単相合金を得た．引張試験より，延性を維持しつつ0.2%耐力値は約300 MPa増大することを確認した．

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