Modeling Microstructural Evolution during Recrystallization in Hot Rolled Structure

Understanding and predicting how microstructure evolves has become tremendously important to enable optimization of processing for improved properties. It has been demonstrated that nucleation of recrystallization is a highly heterogeneous process which typically occurs at deformation irregularities such as grain boundaries, shear bands, and in particle deformation zones of the rolled structure. In this research, the location of the potential particles stimulated of nucleation (PSN) in the microstructure was considered. It was assumed that particles situated on grain boundaries are more likely to nucleate recrystallized grains than others. The Monte Carlo Potts model has been used to model PSN in hot rolled structure taking into account that the stored energy due to deformation heterogeneities that exist around coarse particles on grain boundaries preferentially leads to nucleation.