周期换向脉冲电镀参数对NiFe合金镀层成分影响的研究  

On Inexpensive but Effective CorrosionResistantNiFe Plating

作　　者：李秀仪[1,1,1] 朱保华[1,1,1] 周爱梅[1,1,1] 

机构地区：[1]西北工业大学

出　　处：《西北工业大学学报》1997年第2期183-187,共5页Journal of Northwestern Polytechnical University

基　　金：轻工业科技发展基金

摘　　要：采用周期换向脉冲电流（ＰＲ）在铁基体上进行了ＮｉＦｅ合金镀的研究。在不改变槽液条件下，改变脉冲参数可获得Ｎｉ／Ｆｅ比不同的合金镀层，以满足使用要求。讨论了脉冲电镀参数对合金镀层成分影响的规律和双脉冲电镀的一些特性。Up to now, the production of corrosion resistant NiFe plating requires generally three different kinds of platingbath solution. Our laboratory research succeeded in achieving such plating with only one kind of platingbath solution. To be effectively corrosion resistant, NiFe plating needs to consist of three layers differing in wt. percentages of Ni and Fe. We tried to achieve 3layer plating with one platingbath solution by varying current parameters. We did not succeed with direct current, nor with single direction pulse current. Finally we succeeded with periodically reversed pulse current. The two parameters that could effectively change the NiFe ratio were: current density and frequency of positive pulse. Fig.3a and Fig.4 show the variations of Fe% with current density (Fig.3a) and with frequency (Fig.4) of positive pulse.

关 键 词：脉冲电镀 镀层 合金成分 镍铁合金 电镀 

分 类 号：TQ153.2[化学工程—电化学工业]