On the thermodynamic conditions at moving phase-transition fronts in thermoelastic solids

The main goal of the paper is to establish possible thermodynamic conditions at a phase boundary to describe a propagation of phasetransition fronts in crystalline solids. Classical equilibrium conditions are not valid in the case of fast propagation of sharp phase interfaces through the material during a stressinduced martensitic phase transformation. We propose to extend the equilibrium conditions to the nonequilibrium case in the framework of the thermodynamics of discrete systems. To provide the description of nonequilibrium states, the thermodynamic state space includes socalled contact quantities in addition to usual local equilibrium variables.