Mitra M.Shirazi - Department of Materials Science and Engineering, Sharif University of Technology,Azadi St., Tehran, Iran.

This paper describes a method for estimation of the theoretical transformation strain by means of the Clausius-Clapeyron equation. We determined the phase transformationtemperatures in a equiatomic NiTi alloy with Differential Scanning Calorimetry(DSC). The constitutive behavior of samples was investigated using tensile tests. The theoreticalaxial transformation strain has been calculated applying the Calausius-Clapeyron equation.

Shape memory alloy; NiTi; Austenite; Martensite; Superelasticity;Transformation