火焰与电弧喷涂3Cr13涂层性能对比研究及应用  

Performance Comparative Research and Application of Flame and Arc Sprayed 3Cr13 Coatings

作　　者：高名传 刘畅 陈永强 杨甫 余斯亮 李军 GAO Ming-chuan;LIU Chang;CHEN Yong-qiang;YANG Fu;YU Si-liang;LI Jun(Wuhan Research Institute of Materials Protection Co.,Ltd.,Wuhan 430030,China;State Key Laboratory of Special Surface Protection Materials and Application Technology,Wuhan 430030,China;Baoding Chaoxiong Electrified Power Equipment Co.,Ltd.,Baoding 071800,China;Power Supply Department of China Railway Chengdu Bureau Group Co.,Ltd.,Chengdu 610081,China)

机构地区：[1]武汉材料保护研究所有限公司,湖北武汉430030 [2]特种表面保护材料及应用技术国家重点实验室,湖北武汉430030 [3]保定朝雄电气化电力器材有限公司,河北保定071800 [4]中国铁路成都局集团有限公司供电部,四川成都610081

出　　处：《材料保护》2022年第9期22-26,共5页Materials Protection

基　　金：煤燃烧国家重点实验室开放基金(FSKLCCA1901)资助。

摘　　要：热喷涂不锈钢涂层是一种常用的增材修复涂层,为了比较不同工艺方法对涂层性能的影响规律,分别采用火焰与电弧2种喷涂工艺方式制备了3Cr13涂层,通过喷涂粒子在线监测、涂层性能表征对喷涂过程中的粒子状态及涂层性能开展了研究。结果表明:火焰喷涂3Cr13粒子飞行速度高于电弧喷涂,但喷涂粒子温度低于电弧喷涂粒子温度。火焰喷涂3Cr13涂层孔隙率10.5%、显微硬度505.9 HV及表面粗糙度Ra 11.7μm,均高于电弧喷涂层的,但抗拉结合强度低于电弧喷涂层的。火焰喷涂与电弧喷涂3Cr13涂层的自腐蚀电位及自腐蚀电流密度基本一致,当腐蚀电位在-0.616~0 V范围内时,火焰喷涂层耐蚀性优于电弧喷涂层的。随后对比了2种工艺用于轴类零件修复的特征,为工业应用中工艺方法的选择提供了参考。Thermally sprayed stainless steel coating is a commonly used additive repair coating.For comparing the influences of different processes on the coating performance,the 3Cr13 coating was prepared by flame spraying and arc spraying respectively.The particle state during the spraying processes and the coating performance were studied through the online monitoring of sprayed particles and the characterization of coating performance.Results showed that the flying speed of 3Cr13 particle under flame spraying was higher than that under arc spraying,but the temperature of sprayed particles under flame spraying was lower than that under arc spraying.Moreover,the flame sprayed 3Cr13 coating had a porosity of 10.5%,a microhardness of 505.9 HV and a surface roughness of Ra 11.7μm,which were all higher than that of the arc sprayed coating.However,the tensile adhesive strength of the flame sprayed coating was lower than that of the arc sprayed coating.The self⁃corrosion potential and self⁃corrosion current density of flame sprayed coating were nearly equal to that of the arc sprayed coating.When the corrosion potential was in the range of-0.616~0 V,the corrosion resistance of flame sprayed coating was better than that of the arc sprayed coating.Subsequently,the characteristics of the two as⁃mentioned processes for repairing shaft parts were compared,which would provide a reference for the selection of process in industrial applications.

关 键 词：火焰喷涂 电弧喷涂 3CR13涂层 增材修复 

分 类 号：TG174.442[金属学及工艺—金属表面处理]