增强体含量对TiC/316L复合材料性能的影响  

Effect of reinforcing particles content on properties of TiC/316L composites

作　　者：蔺绍江[1] 熊惟皓[2] 王赛玉[1] 石其年[1] 

机构地区：[1]湖北理工学院机电工程学院,黄石435003 [2]华中科技大学材料成形与模具技术国家重点实验室,武汉430074

出　　处：《粉末冶金材料科学与工程》2013年第3期373-378,共6页Materials Science and Engineering of Powder Metallurgy

基　　金：湖北省教育厅科研计划资助项目(B20123002);湖北省重点学科"机械工程"资助项目

摘　　要：采用粉末冶金法制备增强体颗粒含量为0%、2%、5%、10%和15%的TiC/316L不锈钢复合材料。利用Zwick Roell Z202拉伸试验机测试复合材料的拉伸性能,利用MM-200型环块磨损试验机测试复合材料在干摩擦条件下的摩擦磨损性能,研究TiC颗粒含量对复合材料性能的影响。结果表明:随TiC颗粒的引入,复合材料的强度得到提高,但TiC含量过高,TiC颗粒容易在晶界聚集,导致孔隙的产生和界面连接性的恶化,使复合材料的性能下降。当TiC含量为5%时,复合材料的耐磨性能最好;当TiC含量为10%时,复合材料表现出最高的抗拉强度(655.3 MPa)。TiC/316L stainless steel composites with various TiC content（0%,2%,5%,10% and 15%） were prepared by powder metallurgy technology.The tensile properties of the composites were characterized by tensile testing machine（Zwick Roell Z202）,and the friction wear behaviors of the composites were measured using a block-on-ring wear test machine（MM-200） under dry-sliding condition;the effect of reinforcing particles content on properties of the composites was also studied.The results show that,the mechanical properties of the composites can be improved by adding TiC particles,however,when TiC particle content is too high there will be too many TiC particles together in grain boundary,which can reduce the mechanical properties of the composites;the best wear resistance of the composites is obtained when TiC particles content is 5%.The TiC/316L composites with particles content of 10% can demonstrate the highest tensile strength of 655.3 MPa.

关 键 词：TIC颗粒 增强 TIC 316L复合材料 性能 

分 类 号：TB331[一般工业技术—材料科学与工程]