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研究了在碱性锌酸盐溶液中加入含 Fe添加剂后 ,Zn-Fe合金的电沉积过程及镀层含 Fe量的影响因素。结果表明 ,含 Fe质量百分比为 0 .4 %～ 0 .8%的 Zn-Fe合金镀层的耐蚀性至少是普通镀锌层的 2倍。根据镀层的腐蚀形貌 ,初步探讨了合金镀层的耐蚀机理
The factors affecting the electrodeposition of Zn-Fe alloy and the content of Fe in coating were studied after adding Fe-containing additive into alkaline zincate solution. The results show that the corrosion resistance of Zn-Fe alloy coating containing 0.4% -0.8% Fe is at least 2 times higher than that of ordinary zinc coating. According to the corrosion morphology of the coating, the corrosion mechanism of the alloy coating was preliminarily discussed