The tensile behavior of Ti{sub 36}Ni{sub 49}Hf{sub 15} high temperature shape memory alloy
Recently, ternary Ti-Ni-Hf alloys have attracted great interest in the field of high temperature shape memory materials research and development. Extensive studies have been made on its manufacture process, constitutional phases, phase transformation behavior, the structure, substructure and interface structure of martensite and the precipitation behavior during ageing. Yet up to date there is no report about the fundamental mechanical properties of Ti-Ni-Hf alloys, such as the stress-strain data, the variation laws of the yield strength and elongation with the temperature. In the present study, tensile tests at various temperatures are employed to investigate the mechanical behavior of Ti-Ni-Hf alloy with different matrix structures, from full martensite to full parent phase structure, with the corresponding deformation mechanism discussed.
- Research Organization:
- Harbin Inst. of Tech. (CN)
- OSTI ID:
- 20023092
- Journal Information:
- Scripta Materialia, Vol. 40, Issue 12; Other Information: PBD: 21 May 1999; ISSN 1359-6462
- Country of Publication:
- United States
- Language:
- English
Similar Records
Effect of aging on the phase transformation and mechanical behavior of Ti{sub 36}Ni{sub 49}Hf{sub 15} high temperature shape memory alloy
Damping characteristics of Ti{sub 50}Ni{sub 49.5}Fe{sub 0.5} and Ti{sub 50}Ni{sub 40}Cu{sub 10} ternary shape memory alloys