Investigation on Microstructure and Corrosion Resistance of Rare Earth-Doped Electrodeposition Ni Coatings

Investigation on Microstructure and Corrosion Resistance of Rare Earth-Doped Electrodeposition Ni Coatings

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摘要 The microstructure and corrosion resistance of the RE-doped electrodeposition Ni coatings fabricated with direct current electrodeposition (DC), pulse current electrodeposition (PC), and pulse reversal current electrodeposition (PRC) were investigated by means of SEM, electrochemical analysis and corrosion mass loss, etc. The results show that the Ni coatings produced with PRC exhibit the highest corrosion resistance among the three kinds of coatings, and the corrosion resistance of the PC coatings is higher than that of the DC coatings. The reason is that the surface of the PRC coatings is compacter, crystal finer compared with the coarse surface of DC and PC coatings. The microstructure and corrosion resistance of the RE-doped electrodeposition Ni coatings fabricated with direct current electrodeposition (DC), pulse current electrodeposition (PC), and pulse reversal current electrodeposition (PRC) were investigated by means of SEM, electrochemical analysis and corrosion mass loss, etc. The results show that the Ni coatings produced with PRC exhibit the highest corrosion resistance among the three kinds of coatings, and the corrosion resistance of the PC coatings is higher than that of the DC coatings. The reason is that the surface of the PRC coatings is compacter, crystal finer compared with the coarse surface of DC and PC coatings.

作者常立民安茂忠马明硕

机构地区 Department of Applied Chemistry Department of Applied Chemistry Analysis and Measure Center

出处《Journal of Rare Earths》 SCIE EI CAS CSCD 2005年第S1期456-459,共4页 稀土学报（英文版）

关键词 Ni coatings ELECTRODEPOSITION corrosion resistance rare earths Ni coatings electrodeposition corrosion resistance rare earths

分类号 TG174.44 [金属学及工艺—金属表面处理]

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Journal of Rare Earths

2005年第S1期

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Investigation on Microstructure and Corrosion Resistance of Rare Earth-Doped Electrodeposition Ni Coatings

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