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Investigation on microstructure and corrosion resistance of rare earth-doped electrodeposition Ni coatings

  • Limin Chang*
  • , Maozhong An
  • , Mingshuo Ma
  • *Corresponding author for this work
  • Harbin Institute of Technology
  • Jilin Normal University

Research output: Contribution to journalArticlepeer-review

Abstract

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.

Original languageEnglish
Pages (from-to)456-459
Number of pages4
JournalJournal of Rare Earths
Volume23
Issue numberSUPPL. 3
StatePublished - Dec 2005

Keywords

  • Corrosion resistance
  • Electrodeposition
  • Ni coatings
  • Rare earths

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