在离心铸造粒子增强金属基复合材料中，增强体颗粒会发生偏析。对于ＳｉＣＰ－Ａｌ基复合材料，在横截面上，越靠近铸件外测周边，粒子的体积百分数越高；随着向内侧推移，增强体颗粒的含量有所降低，在距铸件外侧周边一定距离处，粒子含量急剧下降，很快便进入宽度最大而无增强体颗粒区域；在靠近铸件内侧周边处，在基体金属中分布着少量团聚的增强体颗粒 In centrifugal casting of particle reinforced metal matrix composites, reinforcement particles segregate. For SiCP-Al-based composites, the cross-section closer to the outer periphery of the castings, the higher the volume percentage of the particles; with the inner side, the content of reinforcing particles is reduced, at a distance from the outer periphery of the castings , The content of the particles drops sharply, and then enters the area with the largest width without reinforcing body particles. In the vicinity of the inner periphery of the casting, a small amount of agglomerated reinforcing particles are distributed in the base metal