Modeling Steal Heat Treatment

Steel heat treatments are very important industrial processes which involve microsctructural transformations. In the shop practice the design of these processes is conducted on empirical basis using the so called Bain curves, which cannot describe the phenomenon in its globality. Here, a model is proposed in which the first law of the thermodynamics as well as the dynamic equilibrium equation are taken into account. The internal energy allows description of the phase transformations whose evolution is followed by the Cahn-Hilliard equation.