采用挤压铸造制备碳纤维增强ZL109复合材料,SEM观察预处理前后的碳纤维以及碳纤维预制件的形貌,金相显微镜观察纤维在复合材料中的分布。结果表明:预处理使碳纤维长径比满足制备合格预制件的要求,并有利于纤维在预制件中的均匀分散及预制件的成型;模压预制件纤维分布均匀,表面无团聚,碳纤维无氧化;挤压铸造制备的CF/ZL109复合材料中纤维在基体中分布均匀,并具有方向性。 Carbon fiber reinforced ZL109 composites were prepared by extrusion casting. The morphology of carbon fiber and carbon fiber preform before and after pretreatment were observed by SEM. The distribution of fiber in the composite was observed by optical microscope. The results show that pretreatment can make the aspect ratio of carbon fiber meet the requirement of preparing prefabricated prefabricated parts and contribute to the uniform dispersion of the fibers in the prefabricated parts and the preform molding. The prefabricated prefabricated fibers have uniform distribution, no agglomeration on the surface and no oxidation of carbon fibers. Compression casting prepared CF / ZL109 composite fiber distribution in the matrix uniform, and with the directionality.