Investigation of the Thermal Properties of Cu-based Shape Memory Alloy

This study aims to investigate the thermal properties of the phase transformation that may occur with the effect of temperature in Cu-14.70wt.%Al-4.72wt.%Ni shape memory alloy. The sample was annealed at 1203 K for 30 min in an argon atmosphere and then cooled rapidly in salt-ice water. By using Differential Scanning Calorimetry (DSC), the martensitic phase transformation parameters of the sample were found. The activation energy required for these transformations was calculated using the Kissinger, Augis-Bennett, and Takhor methods. Thermogravimetric Analysis (TGA) measurements investigated the mass changes that may occur with the effect of temperature. Surface morphology was analyzed using an optical micrograph.