原位生成WB-CrB增强镍基激光熔覆层的耐蚀性研究  

Investigation on the corrosion resistance of WB-CrB reinforced Ni-based coatings by Laser cladding

作　　者：周笑薇[1,2] 晁明举[1] 杨文超[1] 

机构地区：[1]郑州大学物理工程学院材料物理教育部重点实验室,郑州450052 [2]郑州师范学院物理系,郑州450044

出　　处：《激光杂志》2011年第1期43-44,共2页Laser Journal

基　　金：河南省教育厅自然科学研究计划(2006140009)基金资助

摘　　要：采用静态浸泡法对原位生成WB-CrB增强镍基激光熔覆层的耐腐蚀性进行研究。使用扫描电镜和X射线衍射仪对熔覆层进行显微组织和物相分析,在光学显微镜下观察样品表面腐蚀形貌。结果表明:WB-CrB增强镍基激光熔覆层(Ni60+16 wt.%(WO_3/B_2O_3+C))在10%H_2SO_4(质量百分数)溶液中表现出较好的耐腐蚀性能,与纯Ni60激光熔覆层相比,其耐蚀性提高2倍多。The corrosion resistance of the WB - CrB Reinforced Ni - based Coatings by Laser Cladding was studied using a gravimetric method. The microstructure observation and phases analysis of the coatings were performed by a scanning electron microscopy and X- ray diffractometer. The morphology of the samples was observed by Optical microscope. The results show that the corrosion resistance of the WB - CrB Reinforced Ni - based Coatings doped with 16wt% （WO3＋ B2O3 ＋ C） is better and increase 2 times compared with Ni60 coatings in the 10%H2SO4 solution.

关 键 词：激光熔覆 WB-CrB增强镍基激光熔覆层 耐蚀性 

分 类 号：TG156.99[金属学及工艺—热处理]