[G] Phase Stability and Phase Transformations

11:25 AM - 11:40 AM JST(2:25 AM - 2:40 AM UTC)

[143] Electrical Resistivity Changes during Successive Transformations in Ti-Ni Alloy under Tensile Stress Loading

○Yohei Soejima¹, Hidemasa Torihara^1,2, Hiroki Cho², Sumio Kise¹, Minoru Nishida^1,3 (1. Furukawa Techno Material Co., Ltd., 2. The University of Kitakyushu, 3. Kyushu University)

Keywords:

Martensitic transformation,Shape memory alloy,Ti-Ni alloy,Electrical resistivity,Successive transformations

Ti-Ni合金ワイヤに0~400 MPaの引張応力を負荷し，冷却・加熱過程の電気抵抗率を測定した．100 MPa以上の引張応力を負荷させた場合，逆変態過程においてB19'-R変態が抑制されることが示唆された．