有色金属科学与工程2025，Vol.16Issue(1)：54-64,74,12.DOI:10.13264/j.cnki.ysjskx.2025.01.007
钕铁硼表面脉冲电沉积Ni镀层工艺及性能研究
Process and properties of Ni coating on NdFeB magnet by surface pulsed electrodeposition
摘要
Abstract
Based on the current development needs of NdFeB industry and the problems faced by surface protection technology,pulse electrodeposition technology was introduced in this paper to improve the surface corrosion resistance of NdFeB magnets.Ni coatings with low defect rates and high surface comprehensive quality were obtained by optimizing processes such as duty cycle,frequency and current density.The corrosion potential of the coating increases from-894.36 mV to-680.0 mV,and the corrosion current density reaches 3.5×10-6 A/cm2,which effectively reduces the corrosion tendency and corrosion rate of the coating.Combined with the analysis of the surface microstructure of the coating,it is found that the concentration polarization can be reduced by the regulation of duty ratio and frequency,while the regulation of current density can improve the surface quality of the coating.关键词
钕铁硼磁体/脉冲电沉积/工艺参数/耐腐蚀性Key words
NdFeB magnet/pulse electrodeposition/process parameters/corrosion resistance分类
矿业与冶金引用本文复制引用
杨牧南,罗三根,卢耀军,余黎明..钕铁硼表面脉冲电沉积Ni镀层工艺及性能研究[J].有色金属科学与工程,2025,16(1):54-64,74,12.基金项目
国家"十四五"重点研发计划资助项目(2022YFB3505400) （2022YFB3505400）
