超音速火焰喷涂钴基陶瓷涂层的组织与性能研究  

Study on Microstructure and Properties of HVOF Sprayed Co-based Coating

作　　者：马永青[1] 程国东[1] 张有慧[1] 王引真[1] 秦清彬[1] 权刚刚 王伊诺 程文平[1] 闫清波[1] 

机构地区：[1]海洋石油工程(青岛)有限公司,山东青岛266520

出　　处：《全面腐蚀控制》2014年第4期63-65,共3页Total Corrosion Control

摘　　要：本文在氧气流量和喷涂距离一定的条件下,研究了燃气流量对超音速火焰喷涂WC-Co涂层显微组织、相结构及性能的影响。结果表明:燃气流量低的涂层结合强度、显微硬度最低,孔隙率最大;燃气流量适中的涂层结合强度最高,显微硬度低于另外两种涂层,燃气流量最高的涂层,燃气流量高的涂层的显微硬度最大。This paper investigated the effects of fuel flow rate on microstructure and phase structure and properties when the flow rate of both O2 and spraying distance are constant, the results the micro- hardness and the bonding strength of indicated coating of low fuel flow rate is lowest the porosity is the highest, the bonding strength of the coatings prepared with the moderate fuel flow rate is the highest; the micro-hardness is lower than others two kind of fuel flow rate, the micro-hardness of the coatings prepared with the high fuel flow rate is the highest.

关 键 词：超音速火焰喷涂 WC-CO涂层 组织性能 

分 类 号：TG174.4[金属学及工艺—金属表面处理]