Tribological Properties of TiAl-Ti_3SiC_2 Composites  

作　　者：薛冰 XU Zengshi ZHANG Qiaoxin SHI Xiaoliang WANG Mang ZHAI Wenzheng YAO Jie SONG Siyuan 

机构地区：[1]School of Mechanical and Electronic Engineering, Wuhan University of Technology [2]Department of Mechanical and Electronic Engineering,Yellow River Conservancy Technical Institute

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2014年第2期256-263,共8页武汉理工大学学报（材料科学英文版）

基　　金：Funded by the Natural Science Foundation of Hubei Province(No.2012FFB05104);the National Natural Science Foundation of China(No.51275370);the Fundamental Research Funds for the Central Universities(No.2010-II-020);the Project for Science and Technology Plan of Wuhan City(No.2013010501010139);the Academic Leader Program of Wuhan City(No.201150530146);the Project for Teaching and Research project of Wuhan University of Technology(No.2012016)

摘　　要：The tribological properties of TiAl-Ti_3SiC_2 composites （TMC） against Si_3N_4 ceramic ball pair at room temperature were investigated through the determination of friction coefficients and wear rates, and the morphologies and compositions of wear debris, worn surfaces of TMC and Si_3N_4 ceramic ball were analyzed. The experimental results showed that TMC with 15wt% Ti_3SiC_2 exhibited relatively excellent tribological properties. The solid-phase self-lubricating tribo-layers formed on the worn surfaces of both TMC with 15wt% Ti, SiC, and Si,NA ceramic ball, which was beneficial to the lower friction coefficient and wear rate.The tribological properties of TiAl-Ti_3SiC_2 composites （TMC） against Si_3N_4 ceramic ball pair at room temperature were investigated through the determination of friction coefficients and wear rates, and the morphologies and compositions of wear debris, worn surfaces of TMC and Si_3N_4 ceramic ball were analyzed. The experimental results showed that TMC with 15wt% Ti_3SiC_2 exhibited relatively excellent tribological properties. The solid-phase self-lubricating tribo-layers formed on the worn surfaces of both TMC with 15wt% Ti, SiC, and Si,NA ceramic ball, which was beneficial to the lower friction coefficient and wear rate.

关 键 词：TiAI-Ti_3SiC_2 composites spark plasma sintering in situ technique tribological properties 

分 类 号：TB333[一般工业技术—材料科学与工程]