钛合金表面离子渗钼及耐磨性研究  

Ion Molybdenumizing and Wear Resistance of Titanium Alloy

作　　者：安月平[1] 于东升[1] 王从曾[1] 马捷[1] 

机构地区：[1]北京工业大学材料科学与工程学院,北京100124

出　　处：《热处理》2011年第1期50-53,共4页Heat Treatment

基　　金：国家自然科学基金项目(50374003);北京市自然科学基金项目(2032003)

摘　　要：采用离子渗金属技术对Ti6Al4V(TC4)钛合金进行了离子渗钼,并用扫描电镜、X射线衍射、能谱分析、显微硬度和磨损试验等对渗层的组织、相组成、成分、显微硬度和磨损性能进行了研究。结果表明,TC4合金经离子渗Mo后,表面可形成MoTi相合金层,使材料的硬度有较大的提高,表面常温干摩擦的摩擦因数比基体的低,磨痕比基体的窄,表现出较好的耐磨性能。Ti6Al4V（TC4） titanium alloy was ion molybdenumized by a plasma surface alloying technology.The microstructure,phase structure,composition,microhardness and wear behavior of molybdeniumized case were investigated through the agency of SEM,XRD,EDS,hardness and wear tests.The results show that the alloyed case of MoTi phase will develop on the surface of ion-molybdeniumized TC4 alloy,and consequently the surface hardness will be appreciably increased,the dry fraction coefficient of the surface will be lower than that of the matrix at normal temperature and the abrasion marks on the surface will be more narrow than that on the matrix;and so the ion-molybdenumized TC4 alloy will show good wear resistance.

关 键 词：离子渗钼 钛合金 耐磨性 

分 类 号：TG174.445[金属学及工艺—金属表面处理]