Preparation and Friction Feature of TiAl-based Wear-resisting Self-lubricating Composite
In this paper,TiAl intermetallic compound superfine powder is prepared through mechanical alloying and heat treatment,of which the content of TiA1 intermetallic compound may reach 95%,and TiAl-based wear-resisting composite are obtained via hot-press sintering process and addition of solid lubricant,furthermore the preparation process,microstructure and friction and wear property of TiAl-based wear-resisting composite are studied.The experimental results show,the solid lubricant in the composite is stable and doesnt react with components of TiAl-based materials.The friction coefficient of the composite will gradually decrease with the increase of the amount of solid lubricant CaF2+BaF2,and the minimum value 0.386 will appear when amount of addition is 15%,where the adhesive wear of materials decreases.When the amount of the addition is 15%,the wear rate is up to the lowest,but itll increase instead in case that the amount of addition is more than 15%.
TiAl alloy high temperature self-lubricating mechanical properties friction and wear
Haoran Geng Min Wang He Wang Hua Guo
School of Materials Science and Engineering, University of Jinan,Jinan,Shandong Province,P.R.China Industrial Group of Shandong University, Shandong University, Jinan,Shandong Province,P.R.China
国际会议
重庆
英文
2316-2320
2010-12-11（万方平台首次上网日期，不代表论文的发表时间）