钢丝单镀Galfan合金耐蚀性能研究  

Corrosion Resistance of Hot-Dipping Galfan Alloy Coating on Steel Wire

作　　者：庞建超[1] 马瑞娜[1] 温鸣[1] 曹晓明[1] 

机构地区：[1]河北工业大学材料学院,天津300130

出　　处：《材料保护》2006年第11期59-61,共3页Materials Protection

基　　金：河北省自然基金资助(502034)

摘　　要：为了研究Galfan合金的耐腐蚀机理，通过盐雾试验研究了Galfan合金和纯Zn镀层的耐腐蚀性能，运用扫描电镜和能谱仪对镀层的组织成分进行分析，并相互比较，探讨了Galfan合金具有良好耐蚀性的原因。试验结果表明：Galfan合金钢丝镀层的腐蚀速率约为镀锌钢丝的2／5～5／7；Galfan合金的腐蚀性能主要受共晶结构和添加元素（Al、RE）的影响。Hot-dipping Galfan alloy coating and galvanizing coating were prepared on steel wires. The corrosion resistance of the hot-dipping Galfan alloy coating and galvanizing coating was compared using salt-fog test, while their microstructures and elemental compositions were analyzed by means of scanning electron microscopy and energy dispersive spectroscopy. The factors affecting the corrosion resistance of the hot-dipping Galfan alloy coating were discussed as well. It was found that the hotdipping Galfan alloy coating on the surface of the steel wires showed good corrosion resistance, with the corrosion rate to be as much as 2/5～5/7 of that of the galvanizing coating. It was supposed that the excellent corrosion resistance of the hot-dipping Galfan coating was closely related to its eutectic structure and doping of Al and rare earth.

关 键 词：钢丝 热浸镀 热镀锌 GALFAN合金 镀层 耐腐蚀性 

分 类 号：TG174[金属学及工艺—金属表面处理]