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

40 Citations (Scopus)


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
Issue number1-2
Publication statusPublished - 1 Jan 1996

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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