激光熔覆镍基WC层的耐蚀性能研究  

Corrosion Resistance of Laser Remelting Nikel-base WC Coatings

作　　者：吴磊[1] 田保红[1] 王顺兴[1] 郑世安[1] 柴岩锋 

机构地区：[1]洛阳工学院,471039 [2]新乡美乐电子集团

出　　处：《热加工工艺》1997年第2期8-10,共3页Hot Working Technology

摘　　要：用5kw连续CO2激光器在40Cr钢基材表面对不同成分的镍基WC合金热喷涂层进行激光重熔，研究了WC和CeO2加入量对激光熔覆层显微组织和耐蚀性能的影响、结果表明，添加适量WC和CeO2可以改善激光熔覆镍基自熔合金层的耐蚀性能。Several nikel-base WC composite alloy with various Ceo2 content were remelted by means of a 5 kWcontinuous wave CO2 laser on the substrate of steel 40Cr. The effect of WC and CeO2 content on the microstruture andcorrosion resistance of laser remelted c0atings was studied. As a result,adding proper content of WC and CeO2 in thealloy powder and laser remelting can not only modify the microstructure but also improve the corrosion resistance ofthe coatings remarkably.

关 键 词：碳化钨 氧化铈 激光熔覆 耐蚀性 涂层 热喷涂 

分 类 号：TG174.442[金属学及工艺—金属表面处理]