Cr_2AlC颗粒增强Cu基复合材料的制备及力学性能研究  

Preparation and mechanical properties of Cr_2AlC particulate reinforced Cu matrix composites

作　　者：雷宇[1] 刘锦云[1] 王敏[1] 金应荣[1] 鲁云[2] 付正鸿[1] 安旭光[1] 

机构地区：[1]西华大学材料科学与工程学院,成都610039 [2]日本千叶大学工学部

出　　处：《粉末冶金技术》2013年第5期340-343,共4页Powder Metallurgy Technology

基　　金：教育部春晖计划资助项目(Z2010096);西华大学创新基金资助项目(ycjj201259)

摘　　要：用粉末冶金方法制备了Cr_2AlC颗粒增强Cu基复合材料,研究了Cr_2AlC颗粒加入量对Cu基复合材料显微组织、密度、力学性能的影响。结果表明:Cr_2AlC颗粒弥散分布于Cu基体中,对Cu/Cr_2AlC复合材料的致密化和晶粒长大有一定阻碍作用;随着Cr_2AlC质量分数的增加,材料的密度呈下降趋势,硬度明显提高,而压缩率降低。The Cr2AlC particle reinforced Cu/Cr2AIC composites was produced by powder metallurgy method. The influence of Cr2AlC; content on the microstructure, density and mechanical properties of Cu/Cr2AlC composite were studied. The results show that Cr2 AlC particles dispersed in copper matrix can prevent the copper grains from growing and densifying during sintering. With the increase of Cr2 AlC content,the density of the composite are reduced, whereas the hardness of the composite increased, the compression ratio of the composite reduced.

关 键 词：粉末冶金 CU复合材料 Cr2AlC 

分 类 号：TG146.21[一般工业技术—材料科学与工程]