无磁钻铤不锈钢激光熔覆层的微观组织与腐蚀磨损特性

纪云瀚, 王勤英, 郑杰, 李怡璇, 西宇辰, 董立谨, 张杨飞, 白树林

Microstructure and Tribocorrosion Behavior of Laser Cladding Coating of a Non-magnetic Drill Collar Stainless Steel

JI Yunhan, WANG Qinying, ZHENG Jie, LI Yixuan, XI Yuchen, DONG Lijin, ZHANG Yangfei, BAI Shulin

图4 P550不锈钢基体与熔覆层在不同电化学状态下的磨损表面三维轮廓

Fig.4 3D surface profiles of the wear tracks on P550 stainless steel substrate and coating after tribological testing under different electrochemical conditions: (a) coating at OCP, (b) coating at cathodic protection potential, (c) substrate at OCP, (d) substrate at cathodic protection potential