结合金属热加工过程的冶金学原理,基于非均匀分布的位错密度场,建立了动态再结晶二维元胞自动机模型(Cellular Automaton),并对不同应变速率和不同变形温度条件下的动态再结晶过程进行了模拟。结果表明:动态再结晶存在明显的孕育期;再结晶晶核优先在晶界处产生;提高变形温度或者降低应变速率均能促进动态再结晶的进行。 Based on the metallurgical principle of metal thermal processing, a two-dimensional dynamic recrystallization Cellular Automaton model was established based on the heterogeneous dislocation density field, and the dynamic response under different strain rates and different deformation temperatures The recrystallization process was simulated. The results show that dynamic recrystallization has a significant period of gestation, and recrystallized nuclei preferentially occur at grain boundaries. Increasing the deformation temperature or decreasing the strain rate can promote the dynamic recrystallization.