Mechanical and Microstructural Properties of Ti-V-Al High Temperature Shape Memory Alloy

The phase transformation, microstructural and mechanical properties of Ti-15V-2Al high temperature shape memory alloy produced with arc-melting method were investigated by DSC, XRD, SEM micro-indenter system. reverse martensitic transformation As starting Af finishing temperatures obtained to be 195 °C 285 °C, respectively. In microindentation analysis, the subjected indentation tests under 5000 mN load for three different (24 250 450 °C). hardness reduced elastic modulus values at room ), that is, martensite structure, found higher than austenite structure. effect on superelasticity was examined it value compared its 24 °C.