Calculation method for beta-to-alpha phase change heat of titanium alloy

The invention belongs to the field of titanium alloy material technology and alloy thermodynamics, and particularly relates to a titanium alloy beta-to-alpha phase change heat calculation method. According to the method, the ratio of the phase change latent heat to the phase change absorption heat is calculated by combining the method of measuring the beta phase change latent heat through a DSC technology with the method of calculating the heat absorbed from the outside during phase change through a formula. The method comprises the following specific steps: 1) obtaining the heat Q released during beta phase change of a sample by using a differential scanning calorimetry (DSC); 2) calculating a C value to obtain a C-T curve; (3) Origin software is used for calculating a C-T curve integral, namely Q suction; and 4) calculating Q discharge/Q suction. According to the method, the difference between the beta phase change latent heat and the actual absorbed heat is simply, conveniently and accurately calculated, s