激光熔覆陶瓷增强Co基合金涂层摩擦磨损性能研究的现状  

Present Situation of Research on Friction-wear Resistance of the Ceramic-reinforced Cobalt-base Alloy Coating Fabricated by a Laser Cladding

作　　者：丁舜 田国锐 丁林 DING Shun;TIAN Guorui;DING Lin(School of Mechanical and Vehicle Engineering,West Anbui University,Lu’an 237012,Anhui China)

机构地区：[1]皖西学院机械与车辆工程学院,安徽六安237012

出　　处：《热处理》2021年第6期1-5,共5页Heat Treatment

基　　金：安徽省大学生创新训练项目(S202010376005)。

摘　　要：耐磨涂层能改善低碳钢等材料制作的机械零件和工程构件的耐磨性,不仅节约了贵金属,还降低了生产成本。激光熔覆技术是一种制备耐磨涂层的方法,包括同步送粉法和预置粉末法,可用来在低碳钢等材料表面制备钴基合金涂层和陶瓷增强钴基合金涂层等。介绍了国内外采用用激光熔覆技术制备的钴基合金涂层和陶瓷颗粒增强钴基合金涂层的耐摩擦磨损性能的研究进展,提出了在采用激光熔覆技术制备陶瓷增强钴基合金涂层方面亟待解决和进一步研究的问题,如涂层易开裂、研究结果缺乏普遍性等。The wear-resistant coatings can improve wear resistance of machinery parts and engineering membes made from such materials as low-carbon steels,thus saving in precious metals and reducing production cost.The laser cladding techology is a type of method of fabricating the wear-resistant coating,including synchronous powder-feeding and powder-preplacing methods,may be used to fabricate cobalt-base alloy coating or ceramic-reinforced cobalt-base alloy coating on low-carbon steel and other materials.The progress of research on friction-wear resistance of cobalt-base alloy and ceramic-rei nforced cobalt-base alloy coatings at home and abroad was introduced.The problems to be urgently solved and further investigated in fabric ating ceramic-reinforced cobalt-base alloy coating by the laser cladding technology,for example the coating being easy of cracking,lack of generality of research results and so on,were put forw ard.

关 键 词：低碳钢 激光熔覆 陶瓷 钴基合金涂层 耐摩擦磨损性能 

分 类 号：TG665[金属学及工艺—金属切削加工及机床]