Effect of plasma treatment in corrosion resistance of amorphous Ni-based alloy coatings

  • L. Q. Zhu*
  • , Q. P. Zhong
  • , K. Sugiyama
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

The effect of microwave plasma treatment on corrosion resistance of Ni-base amorphous alloy coatings (Ni-W, Ni-W-B, Ni-Mo-P) was investigated. It was found that the treatment improved their corrosion resistance in H2SO4, HNO3, HCl solutions. The microwave plasma treated ammorphous Ni-W composite coatings (with 5wt% ZrO2 or Al2O3 particles) exhibited higher oxidation resistance during the heating at 700°C for 1~28h. As anodic polarization curve indicated, the microwave plasma treated amorphous Ni-W composite coating had wider passivity potential range. The corrosion resistance of Ni-base amorphous alloy coating was dependent on the power and time of microwave plasma treatment.

Original languageEnglish
Pages (from-to)67-71
Number of pages5
JournalJournal of the Chinese Society of Corrosion and Protection
Volume18
Issue number1
StatePublished - 1998
Externally publishedYes

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