WC-Co热喷涂中温烧结涂层的显微组织和磨损性能研究  

Microstructure and Wear Characteristic of Thermal-Sprayed WC-Co Mid-Temperature Sintered Coating

作　　者：李学兵[1] 邱长军[1] 王少力 陈从桂[1] 樊湘芳[1] 何彬[1] 

机构地区：[1]南华大学机械工程学院,湖南衡阳421001 [2]桂林航空工业高等专科学校机械系,广西桂林541004

出　　处：《南华大学学报（自然科学版）》2006年第1期5-7,共3页Journal of University of South China：Science and Technology

基　　金：湖南省自然科学基金资助项目(98JJY202803JJY3132);湖南省教育厅青年项目资助项目(02B037)

摘　　要：在室温干摩擦条件下,对WC-Co热喷涂中温烧结涂层/GCr15摩擦副作了滑动摩擦试验,观察分析了磨痕显微组织,并对WC-Co热喷涂中温烧结涂层的磨损机理进行了分析.结果表明:在干摩擦情况下,WC-Co热喷涂中温烧结涂层有一个比较稳定的磨损过程.WC涂层具有与GCr15相当的硬度和耐磨性.WC-Co热喷涂中温烧结涂层的磨损机理为脆性微剥落和磨粒磨损.Under the normal temperature and dry friction condition, the rolling friction experiments of the friction pairs between WC -Co Mid -Temperature Sintered Coating/GCr15 were carried out,and the worn trace＇ s microstmcture of WC -Co Mid- Temperature Sintered Coating was observed and analyzed, and the wear mechanics of WC - Co Mid - Temperature Sintered Coating were analyzed. The results showed that,there was a steady process for WC- Co Mid- Temperature Sintered Coating. WC- CO Mid- Temperature Sintered Coating and GCr15 were near in hardness and wear resistance. The wear mechanics of WC - CO Mid -Temperature Sintered Coating were brittle spalling and abrasive wear.

关 键 词：WC-Co热喷涂中温烧结涂层 显微组织 摩擦系数 

分 类 号：TF125[冶金工程—粉末冶金] TF805.1[冶金工程—冶金物理化学]