塑性变形对15% SiC_p/2009 Al复合材料的性能改善  

Improvement of Mechanical Properties of 15% SiC_p/2009 Al Composites by Plastic Deformation

作　　者：肖伯律[1] 樊建中[1] 左涛[1] 张维玉[1] 徐骏[1] 石力开[1] 

机构地区：[1]北京有色金属研究总院复合材料工程技术研究中心,北京100088

出　　处：《稀有金属》2004年第1期13-15,共3页Chinese Journal of Rare Metals

摘　　要：采用粉末冶金法制备的 15 %SiCp/2 0 0 9Al复合材料挤压棒材具有良好的塑性与较高的拉伸强度 ,再进行压缩变形后发现 ,复合材料的强度得到较大幅度提高 ,而塑性值基本保持稳定。同时 ,不同锻压温度和变形量对复合材料的性能影响较小。通过金相观察发现 ,复合材料经过锻压后 ,SiC颗粒分布较挤压态更为均匀 。Extrusion bars of 15% SiC p/2009 Al composites were fabricated by powder metallurgy technique with high values of elongation and tensile strength. Compression tests were performed on bars. The strength is improved largely after compression, while value of elongation is constant. Varied deformation temperature and deformation magnitude have no obvious effect on mechanical properties. Furthermore, distribution of SiC particle is uniformly and strip of particle formed by extrusion disappeares after compression.

关 键 词：铝基复合材料 塑性变形 粉末冶金 

分 类 号：TB333[一般工业技术—材料科学与工程] TG113.25[金属学及工艺—物理冶金]