J0404-6-4 Influence of Loading Rate on Deformation Characteristic of Shape Memory Alloy

Abstract

Uniaxial tensile deformation properties of the TiNi shape memory alloy were investigated for the subloop loading under the stress-controlled condition. The results obtained are summarized as follows. (1) The stress-induced martensitic transformation on the surface of the material can be observed by using the microscope and the thermography. (2) In the subloop loading of the stress-controlled condition, the martensitic transformation progresses and strain increases in the initial stage of the unloading process since the temperature of the material decreases during unloading.