The microstructure evolution of AZ91D magnesium alloy semisolid slurry in the SIMA process was investigated,and the influencing factors on spherical microstructure evolution were analyzed.

• 研究了大体积AZ91D镁合金在SIMA法制备半固态浆料过程中组织的演变规律；并对半固态组织球状化演变的影响因素进行了分析.