The Research on Fabrication and Tribological Performance of Ti-Al Lubricate Films
(0) According to Ti-Al equilibrium diagram,microstructure and its influence on tribological performance of Ti-Al lubricate films were studied. Ti-Al lubricate films of different chemical composition were fabricated on substrates of stainless steel by double-targeted reactive magnetron sputtering during one sputtering process. Chemical composition of the films ranged from 43.20 to 67.89at％Al by changing the relative position of substrates to the targets.The influence of chemical composition of films on friction coefficient was studied by EDS,SEM and friction test in air without any lubricant. These results revealed that friction coefficient of the films ranged from 0.05 to 0.3 at various chemical composition. Ti-Al intermetallic compound film of Ti-45.59at％Al show the lowest friction coefficient (0.05) and in the range from 43.20 to 48.23at％ of Al, friction coefficient is also lower than 0.1.But friction coefficient of films outside the range increases gradually to 0.3.It is suggested that films ranging from 43.20～48.23 at％ of Al forms α2-Ti3Al+γ-TiAl phase which shows stratified structure effectively reducing the friction.
lubricate film magnetron sputtering friction coefficient lubricant mechanism
ZHANG Ye LI changsheng TIAN mingxia
Key Lab of Tribology,Jiangsu University,Zhengjiang,China,212013
国际会议
成都
英文
2007-11-19（万方平台首次上网日期，不代表论文的发表时间）