92. Corrosion Behaviour in Artificially Corrosion-Oxidation Treated Mg Alloys

  1. Prof. Dr. K. U. Kainer
  1. A. Yamamoto1,
  2. H. Inaoka2 and
  3. H. Tsubakino1

Published Online: 22 APR 2005

DOI: 10.1002/3527603565.ch92

Magnesium: Proceedings of the 6th International Conference Magnesium Alloys and Their Applications

Magnesium: Proceedings of the 6th International Conference Magnesium Alloys and Their Applications

How to Cite

Yamamoto, A., Inaoka, H. and Tsubakino, H. (2003) Corrosion Behaviour in Artificially Corrosion-Oxidation Treated Mg Alloys, in Magnesium: Proceedings of the 6th International Conference Magnesium Alloys and Their Applications (ed K. U. Kainer), Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, FRG. doi: 10.1002/3527603565.ch92

Editor Information

  1. GKSS-Forschungszentrum, Institut für Werkstoffforschung, Max-Planck-Straße, 21502 Geesthacht, Germany

Author Information

  1. 1

    Graduate School of Engineering, Himeji Institute of Technology, Himeji, Japan

  2. 2

    Graduate Student of Himeji Institute of Technology, Himeji, Japan

Publication History

  1. Published Online: 22 APR 2005
  2. Published Print: 27 NOV 2003

ISBN Information

Print ISBN: 9783527309757

Online ISBN: 9783527603565

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Keywords:

  • corrosion behaviour;
  • artificially corrosion-oxidation treated Mg alloys

Summary

In order to improve the corrosion resistance in magnesium and its alloys, the present authors have proposed new techniques for surface treatments. The first one is the deposition coating technique [1], in which surfaces of magnesium alloys are covered with high purity magnesium by applying vacuum deposition method which intrinsically includes purification process of magnesium resulting in improving corrosion resistance. The second one is a corrosion-oxidation technique [2, 3], in which specimens of magnesium alloys are immersed into aqueous solutions with relatively high pH, and then the specimens are heated in air. Magnesium hydroxide film is formed on the surface of the specimen by salt immersion, which is changed into magnesium oxide by heating to cover the surface.

In the present study, microstructures formed by the corrosion-oxidation technique are mainly investigated on AZ31 magnesium alloy as well as 3N-Mg, AZ61 and AZ91E alloys.