引言电镀铁技术的出现已有四十年的历史,由于电镀铁成本低,修复层厚,对修复件基体组织和尺寸精度影响极小,所以电镀铁技术得到了迅速的发展和广泛的应用。电镀铁工艺是从70℃以上的高温镀起步的,存在镀铁层硬度低(240～300HV),耐磨耐蚀性差及疲劳强度低的问题。为了提高镀铁层的耐磨耐蚀性,发展 Introduction Electroplating iron technology has been in existence for more than 40 years. Due to the low electroplating iron cost and the repaired layer thickness, the electroplating iron technology has been rapidly developed and widely used due to its minimal impact on the matrix structure and dimensional accuracy of the repaired parts. Electroplating iron process is from high temperature above 70 ℃ plating start, there is low hardness of the coating layer (240 ~ 300HV), wear and corrosion resistance and low fatigue strength problems. In order to improve the abrasion and corrosion resistance of iron plating, development