A new topology-related individual grain growth rate equation was derived under the assumption of the statistical grain model.

• 基于三维个体晶粒表面积的变化率与晶粒拓扑性质之间的定量关系和晶粒尺寸-面数关系的假设,推导了一个拓扑相关的个体晶粒长大速率方程。