Influence of process parameters on the corrosion properties of electrolytic conversion plasma coated magnesium alloys

The synthesis of oxides in a low-temperature electrolytic plasma allows to cover surfaces of magnesium and its alloys with multifunctional protective oxide-ceramic coatings. In order to improve the layer properties, thick layers have been produced, and the influence on layer structure and properties...

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Bibliographic Details
Published in:Surface & coatings technology 2005-10, Vol.200 (1-4), p.68-72
Main Authors: Blawert, C., Heitmann, V., Dietzel, W., Nykyforchyn, H.M., Klapkiv, M.D.
Format: Article
Language:English
Subjects:
Applied sciences
Corrosion
Corrosion environments
Corrosion prevention
Corrosion protection
Cross-disciplinary physics: materials science
rheology
Electrolytic plasma
Exact sciences and technology
Hard ceramic coating
Magnesium alloys
Materials science
Metals. Metallurgy
Nonmetallic coatings
Other topics in materials science
Physics
Production techniques
Surface treatment
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Summary:The synthesis of oxides in a low-temperature electrolytic plasma allows to cover surfaces of magnesium and its alloys with multifunctional protective oxide-ceramic coatings. In order to improve the layer properties, thick layers have been produced, and the influence on layer structure and properties with a main focus on corrosion behaviour was studied. The commercial hard ceramic coatings, e.g., those offered by Keronite or AHC, generally have a thickness of 20−30 μm, while in the present study thicknesses of up to 120 μm were produced. The influence of the process conditions on the microstructure and properties will be discussed.
ISSN:0257-8972
1879-3347
DOI:10.1016/j.surfcoat.2005.02.035