Shape Memory Behavior of Ti-50.9at%Ni Alloy after ECAE Processes
The initial coarse grains of Ti-50.9at%Ni were obviously refined after eight ECAE processes. Effects of pressing number on the transformation behavior have been investigated in detail. Comparing with the initial solution-treated Ti-50.9at%Ni, the R-phase transformation was stimulated and the martensitic temperature Ms decreased with ECAE processes at 773K. The shape memory properties of Ti-50.9at%Ni alloy before and after ECAE processes at 773K have been measured. Good one way shape memory and superelasticity were obtained for the submicron-grained Ti-50.9at%Ni alloy.
Young Won Chang, Nack J. Kim and Chong Soo Lee
Z. G. Fan and C. Y. Xie, "Shape Memory Behavior of Ti-50.9at%Ni Alloy after ECAE Processes", Materials Science Forum, Vols. 561-565, pp. 2313-2316, 2007