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Journal of Coatings Technology and Research
Erschienen in: Journal of Coatings Technology and Research 5/2013

01.09.2013

Comparison of corrosion performance of various conversion coatings on magnesium alloy using electrochemical techniques

verfasst von: R. Uma Rani, V. Maria Shalini, Hari Krishna Thota, A. K. Sharma

Erschienen in: Journal of Coatings Technology and Research | Ausgabe 5/2013

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Abstract

Comparative studies on some of the important chemical conversion coatings, namely, phosphate–permanganate, galvanic black anodizing, dichromate treatment, and micro arc oxidized and modified acid fluoride anodizing on magnesium alloy AZ31B have been conducted. The surface morphology and composition of the coatings were examined through SEM and EDX techniques. Corrosion resistances of these coatings were compared using electrochemical impedance spectroscopy (EIS) and linear polarization studies. The corrosion resistances of the coatings investigated were found to be according to the order as follows: modified acid fluoride > micro arc oxidized phosphate > micro arc oxidized silicate > dichromate > galvanic black anodizing > phosphate-permanganate > bare magnesium.
Vorheriger Artikel Polycaprolactone coating with varying thicknesses for controlled corrosion of magnesium
Nächster Artikel Study on the preparation and properties of novel transparent fire-resistive coatings

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Metadaten
Titel
Comparison of corrosion performance of various conversion coatings on magnesium alloy using electrochemical techniques
verfasst von
R. Uma Rani
V. Maria Shalini
Hari Krishna Thota
A. K. Sharma
Publikationsdatum
01.09.2013
Verlag
Springer US
Erschienen in
Journal of Coatings Technology and Research / Ausgabe 5/2013
Print ISSN: 1547-0091
Elektronische ISSN: 1935-3804
DOI
https://doi.org/10.1007/s11998-012-9466-y

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