电弧喷涂稀土锌铝涂层组织及耐腐蚀性分析  

Analysis on Structure and Anti-corrosion of Arc Sprayed RE-Zn-Al Coating

作　　者：杨熙[1] 

机构地区：[1]贵州工业职业技术学院,贵州贵阳550008

出　　处：《铸造技术》2013年第11期1496-1498,共3页Foundry Technology

摘　　要：用电弧喷涂技术以粉芯丝材来制备稀土锌铝合金涂层,采用显微组织、X射线衍射图谱、腐蚀试验来测试、分析涂层的耐腐蚀性能。结果显示,该稀土锌铝合金涂层具有致密的组织结构,与基体之间紧密结合;涂层中形成了耐腐蚀的尖晶石氧化物。在腐蚀试验时,其自封闭特性阻止了腐蚀反应的扩展,提高了其耐腐蚀性能。Using cored wires and arc spraying technology to manufacture rare earth zinc aluminum alloy coating, the microstructure and anti-corrosion property of the coating were studied by X-ray diffraction, corrosion experiments. Test results show that the rare earth zinc-aluminum alloy coating has dense structure, and integrates with the substrate closely; there are some spinal oxides with well anti-corrosion property in the coating. During corrosion, the self-sealing characteristics of the coating prevent corrosion reaction from expansion, resulting in improve of corrosion resistance.

关 键 词：耐腐蚀性能 电弧喷涂技术 涂层组织 锌铝 稀土 合金涂层 腐蚀试验 粉芯丝材 

分 类 号：TG174.1[金属学及工艺—金属表面处理]