Effect of particle size on mechanical properties of SiCp/5210 Al metal matrix composite

摘要：

SiCp/5210 Al metal matrix composites with a high volume fraction (50％) of SiC particles were fabricated by squeeze casting method.The effect of particle size on the mechanical properties of the composites was studied.The results show that with the decreasing of particle size,the bending strength of the composites increases,while the fracture toughness of the composites decreases.The bending strength and fracture toughness of 10 μm SiCp/5210 Al metal matrix composite are 825 MPa,10.0 MPa·m1/2,and the fracture toughness of 63 μm SiCp/5210 Al metal matrix composite reaches 12.8 MPa·m1/2.The main fracture mechanism changes from particle crack to particle/matrix interface de-bonding with the decreasing of particle size.

关键词： metal matrix composite SiCp/5210 composite squeeze casting mechanical properties

作者: YU Xiao-dong WANG Yang-wei WANG Fu-chi

作者单位: School of Materials Science and Engineering,Beijing Institute of Technology,Beijing 100081,China

会议类型: 国际会议

会议名称: 2007年国际有色金属大会(International Conference of Nonfereous Materials 2007)(ICNFM)

会议地点: 长沙

会议语种:英文

在线出版日期: 2007-11-28（万方平台首次上网日期，不代表论文的发表时间）