[G] Fundamentals of Mechanical Properties(1)

[191] Temperature dependence of deformation and fracture in Ti-17V and Ti-22V alloys

*Rei Yano¹, Tatsuya Morikawa², Shigeto Yamasaki², Tomohito Tsuru³, Masaki Tanaka² (1. Department of Materials, Graduate School of Engineering, Kyushu University, 2. Department of Materials Faculty of Engineering, Kyushu University, 3. Japan Atomic Energy Agency)

Keywords:β型チタン合金、すべり変形、熱活性化過程、脆性延性遷移挙動

β型チタン合金Ti-22V，Ti-17Vについて種々の温度で衝撃試験および引張試験を行い，変形・破壊挙動の温度依存性を明らかにし，塑性変形を支配する熱活性化過程について検討する．