The Microstructures of Al-silicate short fibber/ZL109 composites by liquid infiltration method were well distributed and had no casting defects,the crystalline grains were fined.

• 用压力浸渗法制备的硅酸铝短纤维／ZL109复合材料组织均匀，无铸造缺陷；基体晶粒明显细化。