Corrosion protection of NdFeB magnets by surface coatings - Part I: Salt spray test

H. H. Man, Hau Chung Man, L. K. Leung

Research output: Journal article publicationJournal articleAcademic researchpeer-review

38 Citations (Scopus)

Abstract

Various surface modification techniques including electroplating, chemical vapour deposition (CVD) and laser surface melting have been applied to improve the poor corrosion resistance of NdFeB magnets. A range of heterogeneous double-layer coatings were prepared. The corrosion resistance of the surface-treated samples was compared with that of some commercially available coated samples using a aerated salt spray test. It was found that a double coating of Cr (topcoat)/Ni (undercoat) offered the best corrosion resistance.
Original languageEnglish
Pages (from-to)40-46
Number of pages7
JournalJournal of Magnetism and Magnetic Materials
Volume152
Issue number1-2
DOIs
Publication statusPublished - 1 Jan 1996

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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