Simulation of evolution of precipitates of two carbonitride phases in Nb- and Ti-containing steels during isothermal annealing

A model for describing the evolution of carbonitride precipitates of several compositions in steels at the stages of growth, dissolution, and coalescence is proposed. The kinetics of the growth and dissolution of carbonitrides in the Fe-Nb-Ti-C-N system is calculated based on the numerical implementation of this model.