Numéro
J. Phys. Colloques
Volume 43, Numéro C4, Décembre 1982
ICOMAT-82
International Conference on Martensitic Transformations
Page(s) C4-261 - C4-266
DOI https://doi.org/10.1051/jphyscol:1982435
ICOMAT-82
International Conference on Martensitic Transformations

J. Phys. Colloques 43 (1982) C4-261-C4-266

DOI: 10.1051/jphyscol:1982435

EFFECTS OF HEAT TREATMENT ON MECHANICAL BEHAVIOR OF Ti-Ni ALLOYS

T. Saburi, T. Tatsumi et S. Nenno

Department of Materials Science and Engineering, Osaka University, Suita, Osaka, Japan


Abstract
Aging effects on the transformation temperatures and the deformation behavior of Ti-Ni alloys have been studied by electrical resistivity measurement, tensile test and transmission electron microscopy. Main interest was in the influence of alloy composition and aging treatment on the pseudo-elasticity and the shape memory effect. It was found that Ms temperature and mechanical behavior of nickel-rich off-stoichiometric (>50.7at%Ni) Ti-Ni alloys were sensitive to heat-treatment, while those of a near-stoichiometric (50.4at%Ni) alloy were not. Precipitates were observed in the off-stoichiometric alloys after aging.