Abstract: The stress-strain curves and texture characteristics of dynamic recrystallization of magnesium alloy are introduced. The influences of deformation temperature，strain rate，strain and original texture on nucleation and grain size of dynamic recrystallization of magnesium alloy are discussed. Within a certain range，grain size becomes small as deformation temperature declines and strain rate rises. The nucleation mechanisms of DRX are reviewed.

摘要： 介绍了镁合金动态再结晶的应力应变曲线和组织特点,分析了变形温度、变形速度、变形程度以及原始晶粒组织等因素对镁合金的动态再结晶的形核及晶粒大小的影响。在一定范围内，降低变形温度提高变形速度可使动态再结晶晶粒尺寸减小，随变形程度增大，晶粒变得细小。同时也论述了镁合金动态再结晶的形核机制。