喷射成形SiC颗粒增强Al-Mg基复合材料的性能与组织研究

INVESTIGATION ON PROPERTIES AND MICROSTRUCTURE OF SiC PARTICLE REINFORCED Al-Mg MATRIX COMPOSITE PRODUCED BY SPRAY FORMING

采用多种实验方法，对喷射成形SiC颗粒（SiCp）增强Al-Mg基复合材料的性能与组织进行了研究。结果表明，实验用材料中，SiCp分布不均匀，大部分集中于晶界上；并存在较严重的缩孔，它们是导致材料性能降低的主要原因。

The properties and microstructure of SiC particle reinforced Al-Mg matrix composite (Al-Mg/SiCp)produced by spray forming were investigated by using several kinds of experimental methods.The results showed that the distri butions of SiCp, mostly concentrating on the grain boundaries, were heterogeneous and considerable pores were observed in AlMg/SiCp, these are the two main causes of decreasing in the properties of material.