Numéro
J. Phys. Colloques
Volume 49, Numéro C8, Décembre 1988
Proceedings of the International Conference on Magnetism
Page(s) C8-663 - C8-664
DOI https://doi.org/10.1051/jphyscol:19888301
Proceedings of the International Conference on Magnetism

J. Phys. Colloques 49 (1988) C8-663-C8-664

DOI: 10.1051/jphyscol:19888301

CORROSION RESISTANCE OF PVD COATED Fe-Nd-B MAGNETS

M. J. Talvitie1, M. K. Veistinen2, K. J. Onnela2 et V. K. Lindroos1

1  Helsinki University of Technology, Laboratory of Physical Metallurgy and Materials Science, SF-02150 Espoo, Finland
2  Outokumpu Co., P.O. Box 280, SF-00101 Helsinki, Finland


Abstract
Fe-Nd-B magnets were prepared by the powder metallurgical process. The magnets were coated with TiN or ZrN by using the reactive triode ion plating technique in order to improve the corrosion resistance. The special purpose of the present work was to combine the coating process with the heat treatment of the magnets. Magnetic and corrosion properties of the coated magnets are reported in the present study.