J Mater Sci Technol ›› 1994, Vol. 10 ›› Issue (1): 59-66.

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Development of Fundamental Research of SiC_w / Al Composites in HIT Part Ⅱ: Mechanical Behaviour of Squeeze-cast SiC_w / Al Composites

Jun LIU; Dezun WANG and Congkai YAO(Dept. of Metals and Technology, Harbin Institute of Technology, Harbin, 150001, China)   

  • Received:1994-01-28 Revised:1994-01-28 Online:1994-01-28 Published:2009-10-10

Abstract: Studies on the mechanical behaviour of squeeze-cast SiCw / Al composites have been revjewed. The results show that SiCw / Al composites exhibit improved mechan ical properties and cyclic hard ening. The reasons leading to the above results are discussed. Localized deformation near SiC whiskers plays an important role in the initiation of microcracks in the composites, and the fracture of the composites is caused by the abrupt linking of microcracks