Effect of Heat Treatment Temperature on the Mechanical Property in Cast TiNi Shape Memory Alloy
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.
Young Won Chang, Nack J. Kim and Chong Soo Lee
K. Kitamura et al., "Effect of Heat Treatment Temperature on the Mechanical Property in Cast TiNi Shape Memory Alloy", Materials Science Forum, Vols. 561-565, pp. 1493-1496, 2007