摘要
采用SEM和电子拉伸机对挤压态SiC/AZ91镁基复合材料的显微组织进行了观察分析,并对其拉伸性能进行了测试。结果表明:挤压态复合材料中SIC晶须沿挤压方向分布,SiC晶须的长径比降低;挤压态复合材料的拉伸强度均较压铸态有提高。
Microstructures and tensile properties have been examined by SEM and electronic tensile machine in an as-extruded SiC_w/AZ91 magnesium matrix composite. The results show that silicon carbide whiskers distribute along the extrusion direction and the aspect ratio (L/D) of whisker is reduced in the as-extruded composite. The strength of as-extruded SiC_w/AZ91 magnesium matrix composite is higher than that of the as-casted one.
出处
《兵器材料科学与工程》
CAS
CSCD
北大核心
1993年第2期3-6,共4页
Ordnance Material Science and Engineering
关键词
金属复合材料
显微组织
挤压
镁
metal matrix composite, SiC whisker, magnesium, as-extruded, microstrueture, tension
