Effect of Heat Treatment Temperature on the Mechanical Property in Cast TiNi Shape Memory Alloy

Abstract:

The heat treatment effect of a cast shape memory alloy (SMA) from self-propagating high temperature synthesis (SHS) ingot was investigated. The composition of SHS ingot was Ti-50.8at%Ni. DSC and Tensile test specimens were cast by lost-wax process from SHS ingot. The heat treatment conditions were 400°C-60min., 500°C-60min. and 600°C-60min. for DSC and 400°C-60min. and 500°C-60min. for tensile test. Transformation temperatures were measured by differential scanning calorimetry (DSC). Mechanical properties were measured by a tensile test at several temperatures. The effects of heat treatment temperatures were same as a general TiNi wire material.

• Periodical: Materials Science Forum (Volumes 561-565)
• Pages: 1493-1496
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.561-565.1493
• Online since: October 2007
• Authors: Kazuhiro Kitamura, Yutaka Sawada, Toshio Kuchida, Tadashi Inaba, Masataka Tokuda, Yukiharu Yoshimi
• Keywords: Casting Alloy, Self-Propagation High-Temperature Synthesis (SHS), SMA, TiNi

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