钛合金的表面渗碳工艺及其耐磨性能  

Carburizing Technology and Wear Resistance of Titanium Alloy

作　　者：魏超[1] 罗勇[1] 强颖怀[1] 葛长路[1] 

机构地区：[1]中国矿业大学材料科学与工程学院,江苏徐州221008

出　　处：《机械工程材料》2008年第1期34-36,共3页Materials For Mechanical Engineering

摘　　要：利用真空加热技术对Ti6Al4V合金表面进行渗碳处理;用X射线衍射仪分析了表面渗碳层的成分;用多功能微观摩擦试验机考察渗碳层的耐磨性能;用扫描电子显微镜观察了磨损表面形貌。结果表明:真空渗碳处理后在合金表面形成了TiC;真空气体渗碳后钛合金渗碳层硬度最高可达876 HV;渗碳后试样的耐磨性能有了显著的提高;在血浆润滑条件下,钛合金以塑性变形和犁沟磨损为主。The surface of titanium alloy was carburized by vacuo-heating technology.The constituents and phase structure of the carburized surface were determined by X-ray diffraction.The wear resistance of the carburized surface was tested using a CETR UMT22 multifunction wear tester.The morphology of worn surface was observed by SEM.The experimental results showe that TiC phase is formed in the surface of alloy and the maximum hardness of surface is 876 HV.The wear resistance of carburized layer is improved obviousl...

关 键 词：真空 渗碳 钛合金 摩擦磨损性能 

分 类 号：TG166.5[金属学及工艺—热处理]