Fatigue life of TiNiCu shape memory alloy under thermo-mechanical conditions

摘要

In this paper, the fatigue lives of Ti-41.7atpercentNi-8.5atpercentCu alloy are investigated experimentally. Experiments are carried out by repeating the combination of the thermal cycles and the loading-unloading cycles under various heating temperatures and the constant cooling temperature. Result shows that the fatigue lives are related to the dispersion strain energy obtained by the amount of decrease of recovery strain energy per cycle.