Cr3C2-CrB/Ni60激光熔覆层的耐蚀性研究  

Investigation on the Corrosion Resistance of Cr3C2-CrB/Ni60 laser-cladding

作　　者：周笑薇[1] 晃明举[1] 敬晓定[2] 

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,河南郑州450052 [2]郑州师范高等专科学校物理系,河南郑州450044

出　　处：《激光杂志》2010年第3期54-55,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长Cr3C2-CrB复合增强的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：含16wt%（Cr2O3＋B2O3＋C）的Cr3C2-CrB/Ni60激光熔覆层在10%H2SO4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1倍多。The corrosion resistance of the Cr3C2-CrB/Ni60 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 Cr3C2-CrB/Ni60 coating doped with 16wt%（B2O3＋Cr2O3 ＋C）is better and adds up 2 times compared with Ni60 coatings in the 10%H2SO4 solution.

关 键 词：激光熔覆 Cr3C2-CrB/Ni60激光熔覆层 耐蚀性 

分 类 号：TG156.99[金属学及工艺—热处理]