铜铝聚苯酯封严涂层耐蚀性能和可磨耗性能研究  

Corrosion resistance and anti-abrasion performances of plasma sprayed aluminum-bronze-polyester sealing coatings

作　　者：林筠 刘栋 罗文飞 刘建明 高阳 董长青 刘通 Lin Jun;Liu Dong;Lou Wenfei;Liu Jianming;Gao Yang;Dong Changqing;Liu Tong(AECC Guiyang Engine Research Institute,Guiyang 550081,China;BGRIMM Technology Group,Beijing 100160,China)

机构地区：[1]中国航发贵阳发动机设计研究所,贵阳550081 [2]矿冶科技集团有限公司,北京100160

出　　处：《热喷涂技术》2023年第2期27-33,共7页Thermal Spray Technology

摘　　要：采用等离子喷涂工艺制备了铜铝聚苯酯封严涂层,完成了96 h中性盐雾试验、72 h酸性大气试验、24 d周期浸润试验以及450℃、线速度300 m/s、进给速率5~480μm/s的高温高速可磨耗试验,研究了涂层的耐蚀性能和可磨耗性能。结果表明:铜铝聚苯酯封严涂层在72h酸性大气腐蚀后,涂层表面光滑平整,未观察到腐蚀产物和点蚀坑;24 d周期的浸润腐蚀后,涂层颜色未发生明显改变,涂层表面结构完整,未观察到腐蚀产物和点蚀坑;96 h中性盐雾腐蚀后,涂层表面未观察到腐蚀坑,但涂层表面出现大片褐色斑块;不同进给速率下,叶片进给深度比IDR值不大于9.79%;检测及分析结果表明,涂层拥有优异的耐腐蚀性能和可磨耗性能。Aluminum bronze polyester sealing coating was prepared by plasma spraying process,and 96 h neutral salt spray test,72 h acidic atmosphere test,24 d cyclic immersion test,450℃,300 m/s,speed and 5~480μm/s incursion were completed.The corrosion resistance and abradability of the coating were studied by high temperature and high speed abrasion tests at m/s.The results showed that after 72 hours of acidic atmospheric corrosion,the surface of the copper aluminum polyester sealing coating was smooth and flat,without corrosion products and pitting pits observed;After 24 days of immersion corrosion,the coating color did not change significantly,the coating surface structure was complete,and no corrosion products and pitting pits were observed;After 96 h of neutral salt spray corrosion,no corrosion pits were observed on the coating surface,but large brown patches appeared on the coating surface;Under different feed rates,the blade feed wear ratio IDR value is less than 9.79%;The overall results of the copper aluminum polyester sealing coating show that the coating has excellent corrosion resistance and abradability.

关 键 词：铜铝聚苯酯 封严涂层 可磨耗性能 耐腐蚀性能 

分 类 号：TG174.4[金属学及工艺—金属表面处理]