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氯化钾体系中电镀锌铁(钒)合金

放大字体  缩小字体发布日期:2012-04-25  浏览次数:746

摘要:提出了一种基于氯化钾镀锌体系的锌铁(钒)合金电镀溶液,其组成及工艺条件为:氯化锌80g/L,氯化钾240 g/L,硼酸30 g/L,R·G-618光亮剂18 mL/L,R·G-618配位剂60 mL/L,温度l5~35℃,pH 4.5,阴极电流密度0.5。3.0A/dm2。简述了所用添加剂的主要成分及作用。采用扫描电镜和x射线衍射分析了镀层的形貌和织构。在质量分数为3%的NaCl溶液的极化曲线测量和中性盐雾试验结果表明,锌铁(钒)合金镀层的耐蚀性比纯锌镀层更优异。

关键词:锌铁(钒)合金;电镀;添加剂;形貌;织构;耐蚀性

中图分类号:TQl53.2   文献标志码:A

文章编号:1004-227X(200g)0g-0010-04

Electroplating of zinc-iron(vanadium) alloy in potassium chloride electrolyte//ZHOU Chang-hong*,WU Ming wei.JIANG Sheng

Abstract:A Zn-Fe(V)alloy electroplating bath was developed based on the potassium chloride Zn plating electrolyte.The bath composition and process conditions are as follows:ZnCl2 80 g/L,KCl 240 g/L,H3803 30 g/L,R·G-618 brightening agent l 8 mL/L.R·G一618 complexing agent 60 mL/L。temperature l 5.35℃.pH 4.5 and cathodic current density 0.5-3.0 A/dm2.The main components and roles of the additives in potassium chloride electrolyte were in仃oduced.The deposit morphology and texture were analyzed by scanning electron microscopy and X-ray diffraction.The results of polarization curve measurement in a 3%(mass fraction)NaCl solution and neutral salt spray test showed that the Zn-Fe(V)alloy deposit has a superior corrosion resistance to pure Zn deposit.

Keywords:zinc-iron(vanadium)alloy;electroplating;additive;morphology;texture;corrosion resistance

First.author'S address:Wuhan Aobang Surface Technique C0.,Ltd.,Wuhan 430023,China

 

氯化钾体系中电镀锌铁(钒)合金:前言

氯化钾体系中电镀锌铁(钒)合金:锌铁(钒)合金电镀添加剂的选择

氯化钾体系中电镀锌铁(钒)合金:实验

氯化钾体系中电镀锌铁(钒)合金:结果与讨论

氯化钾体系中电镀锌铁(钒)合金:结论

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