ABSTRACT
As shown by numerous experimental data, deformation causes phase transitions to take place in a situation where they do not spontaneously occur. There are two approaches to explaining the role of deformation in the development of phase transitions. According to the first approach, deformation accelerates the kinetics of phase transitions and reduces the hysteresis. According to the second, the effect of deformation can be thermodynamic in nature: in the case of transformations involving changes in the shape of the material, external stresses applied to the material during its deformation perform work on the path defined by the intrinsic deformation of the transformation which gives an additional contribution to the thermodynamic stimulus of the transformation. The change of the kinetics of the transformation is the result of the increase of the thermodynamic stimulus.
