[J] JIM-ISIJ Joint Session Materials science of martensitic and bainitic transformations and its applications(2)

[J39] Giant elastocaloric effect with wide temperature window in nanocrystalline Ti-44Ni-5Cu-1Al shape memory alloy

*Xiao Fei^1,2, Fukuda Takashi¹ (1. Department of Materials Science and Engineering, Graduate School of Engineering, Osaka University、2. School of Materials Science and Engineering, Shanghai Jiao Tong University)

Keywords:martensitic transformation、elastocaloric effect、Ti-Ni shape memory alloy

Here, we report that stable and giant eCE is obtained in nanocrystalline Ti-44Ni-5Cu-1Al (at%) alloy, which shows successive B2-B19-B19’ martensitic transformation.