TiC_P/3Cr13复合材料显微组织及耐磨性的研究  

A Study on Microstructure and Wear resisting Properties of Casting in Situ TiC P/3Cr13 Composites

作　　者：孙建荣[1] 孙扬善[1] 闵学刚[1] 

机构地区：[1]东南大学材料科学与工程系,江苏南京210096

出　　处：《铸造》2001年第1期25-28,共4页Foundry

摘　　要：研究了TiC颗粒增强 3Cr13钢基复合材料的显微组织和摩擦磨损特性 ,探讨了TiC颗粒增强 3Cr13钢基复合材料的摩擦磨损机理。结果表明 ,当TiCP 颗粒的体积分数小于 8%时 ,显微组织中TiCP 颗粒分布均匀 ,没有出现颗粒的团聚及由于引入TiCP 颗粒而形成的组织缺陷。随着TiC颗粒体积分数的增加 ,复合材料的耐磨性增加 ,达到一定的体积分数时 。The microstructure and wear resisting properties of TiC P/3Cr13 composites are investigated in this paper.The friction and wear mechanism are also discussed.The results show that when the volume fraction of TiC was lower than 8%,the distribution of TiC particle in the microstructure is uniform and no apparent particles segregation and microdefects are observed.The wear resisting properties of compo sites increases with the increasing of TiC P volume percent,and when it is up to a constant volume percent,it will not increase.

关 键 词：铸造复合材料 颗粒增强复合材料 碳化钛 铸钢 耐磨性 原位反应 

分 类 号：TB33[一般工业技术—材料科学与工程]