Feasibility Study of a Method to Obtain Corrosion Protection of the NdFeB-Type Magnet

  • S. Tori
  • G. Bava

Abstract

The development of a coating method for NdFeB magnets is presented in all its steps. It includes an electrolytic process of zinc deposition, with detailed description of the problem that arose with hydrogen embrittlement, either with or without a conversion coating. For extremely severe working environments, another zinc coating, not electrolytic, is presented: the DACROMET process. Alternative testing procedures have been evaluated, in a neutral atmosphere or in acidic atmospheres of SO2 or H2S.

Keywords

Hydrogen Embrittlement Thermal Aging Salt Spray Conversion Coating Zinc Coating 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© ECSC, EEC, EAEC, Brussels and Luxembourg 1989

Authors and Affiliations

  • S. Tori
    • 1
  • G. Bava
    • 1
  1. 1.Materials and Processes Laboratorying.C.OLIVETTI & C. S.p.A.IvreaItaly

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