Effects of Si on Microstructure and tensile strength of an in-situe Al/Mg_2Si composite

摘要

Al/Mg_2Si composites were in-situ fabricated by the usual die-casting technique and effects of the Si contents in the composites on microstructures and tensile strengths were investigated. Experimental results show that extra Si conents in Al/Mg_2Si composites induce a ductile matrix and a uniform distribution of in-situ particles. The refined microstructures lead to an obviously increase in both strength and ductility of the MMCs.