含Ti/W过共晶高铬铸铁高温磨料磨损性能研究  

Research on the Abrasive Wear of Hypereutectic High Chromium Cast Iron Containing Titanium and Tungsten at High Temperature

作　　者：王海艳[1] 郑开宏[1] 喻石亚 

机构地区：[1]广东省工业技术研究院(广州有色金属研究院),广东广州510650 [2]中国南方航空工业(集团)有限公司,湖南株洲412002

出　　处：《铸造》2015年第12期1247-1250,共4页Foundry

基　　金：广东省重点实验室建设支撑项目(2013A061402010);国家科技部"863"计划项目(2013AA031203);广东省战略新兴产业项目(2012A090100018);广东省专业镇中小微企业服务平台建设项目(2013B091601005;2013B091601004)资助;广东省公益研究与能力建设专项(2015B070701026);广东省产学研合作项目(2015B090906014)资助

摘　　要：研究了含Ti和W过共晶高铬铸铁(25.0 wt.%Cr,3.5 wt.%C)高温磨料磨损性能和磨损机理。结果表明,加入Ti后,过共晶高铬铸铁抵抗高温磨料磨损能力提高;在相同的温度下,Ti含量越高,高铬铸铁磨损失重量越小;同时加入Ti和W后,高铬铸铁试样磨损量最小,耐磨性能最好。含Ti/W过共晶高铬铸铁的高温磨料磨损机理主要包括磨料磨损机理、疲劳断裂机理、粘着磨损机理等。The effects of titanium and tungsten on the wear resistance of a hypereutectic high chromium cast iron containing 3.5 wt.% carbon and 25.0 wt.% chromium were studied. The results indicate that after adding titanium, the wear resistance of the hypereutectic high chromium cast iron has been improved obviously. At the same temperature, the higher the content of Ti, the smaller the wear mass loss. After adding titanium and tungsten at the same time, the minimum sample wear, and the wear resistance of the hypereutectic high chromium cast iron is best. There are some kinds of the wear mechanism of the hypereutectic high chromium cast iron containing titanium and tungsten, such as abrasive wear mechanism, fatigue fracture mechanism, the micro fracture mechanism, the adhesive wear mechanism, etc.

关 键 词：过共晶高铬铸铁 组织 耐磨性 

分 类 号：TG733[金属学及工艺—刀具与模具] TG143.7[一般工业技术—材料科学与工程]