采用双层辉光等离子表面合金化技术在Q235钢表面制备钽改性层及其耐蚀性  

Ta Modified Layer Prepared on Q235Steel by Double Glow Plasma Surface Alloying Technology and It′s Corrosion Resistance

作　　者：王若男[1] 张平则[1] 毕强[1] 魏东博[1] 陈小虎[1] 

机构地区：[1]南京航空航天大学材料科学与技术学院,南京211106

出　　处：《机械工程材料》2013年第9期25-28,共4页Materials For Mechanical Engineering

基　　金：江苏省重大科技成果转化专项资金项目(BA2007036)

摘　　要：采用双层辉光等离子表面合金化技术在Q235钢表面制备钽改性层,并对钽改性层的组织、成分及耐蚀性能进行了研究。结果表明:改性层中的钽元素含量呈梯度分布,改性层与基材结合良好;钽改性层的耐蚀性明显优于基材的,其保护效率高达99.88%;钽改性层形成的钝化膜完整,能很好地保护基材。The microstructure, composition and corrosion resistance of Ta modified layer which obtained on low carbon steel Q235 by double glow plasma surface metallurgy technology were studied . The results show that the tantalum element distributed gradually from the surface to substrate, Ta modified layer was well bonded to the substrate. The corrosion resistance of Ta modified layer obviously was better than that of the substrate, and it＇s protection efficiency was 99. 88%. The passive film on Ta modified layer was integral and could protect the substrate efficiently.

关 键 词：双层辉光等离子表面合金化 钽改性层 均匀腐蚀全浸泡试验 耐蚀性能 

分 类 号：TG174.445[金属学及工艺—金属表面处理]