Cellular Automaton Simulation for the Effects of Uneven Distribution of Dislocation Density and Small-Sized Precipitated Particles on Dynamic Recrystallization

Abstract

Based on the fundamental metallurgical principles, a modified cellular automaton model which considers the influences of uneven distribution of dislocation density and small-sized precipitated particles was proposed to simulate the dynamic recrystallization (DRX) performances of steels with the three kinds of equivalent particle’s size. The results show that the model can truly simulate the nucleation order and multi-round feature of DRX as well as the law of small-sized precipitated particle’s retarding DRX; The finer are the particles, the stronger gets the action of their pinning grain boundary.