晶须取向对SiCw/Al复合材料力学性能的影响  

INFLUENCE OF WHISKER ORIENTATION ON THE TENSILE PROPERTIES OF THE SiCw/Al COMPOSITES

作　　者：姜传海[1] 王德尊[2] 吴建生[1] 

机构地区：[1]上海交通大学教育部高温材料及高温测试重点实验室,上海200030 [2]哈尔滨工业大学材料科学与工程学院,哈尔滨150001

出　　处：《理化检验（物理分册）》2001年第9期373-375,405,共4页Physical Testing and Chemical Analysis(Part A:Physical Testing)

摘　　要：研究了压铸态及挤压态 2 0 % (体积分数 )SiCw/ 60 61Al复合材料中晶须取向及其拉伸力学性能。结果表明 ,压铸态复合材料中晶须取向趋于混乱分布状态 ,因而其力学性能具有较高的各向均匀性。复合材料经过挤压变形后晶须呈定向排列 ,沿挤压方向的各项力学性能均有所提高 。The whisker orientation and tensile properties of the 20% (volume fraction) as cast and extruded SiCw/6061Al composites were investigated. The results showed that the whisker orientation of the as cast composite was nearly in the random state, so there was a good homogeneity of mechanical properties in various directions for this material. Because the whiskers of the composite were aligned directionally after extrusion, all of the material properties in the extrusion direction were increased, especially the elongation rate.

关 键 词：铝复合材料 晶须取向 力学性能 SiCw/601Al 拉伸 

分 类 号：TB331.23[一般工业技术—材料科学与工程]