Improvement in the superelasticity of Ti–19Zr–11Nb–4Ta shape memory alloy caused by aging treatments
- Resource Type
- article
- Authors
- Qiquan Li; Xiaolong Ma; Xiaoyun Song; Chengyang Xiong; Wentao Qu; Yan Li
- Source
- Journal of Materials Research and Technology, Vol 19, Iss , Pp 1293-1297 (2022)
- Subject
- Ti–Zr–Nb–Ta
Aging
Superelasticity
Microstructure
Shape memory materials
Mining engineering. Metallurgy
TN1-997
- Language
- English
- ISSN
- 2238-7854
The superelasticity behaviors of Ti–19Zr–11Nb–4Ta shape memory alloy subjected to aging treatments were investigated in this study. As the aging temperature increased, the precipitation of isothermal ω phase was found to suppress the formations of stress-induced αʺ-martensite. The superelastic recovery of the sample first increased and then deteriorated with the increasing of aging temperature from 423 K to 523 K. A maximum superelastic recovery strain of 3.9% was obtained for Ti–19Zr–11Nb–4Ta alloy aged at 473 K.