Preparation of Compact Micro-Arc Oxidation Coatings on Aluminum Alloys

Abstract:

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In this paper, a hard and thin coating with no loose layer was formed on the surface of the aluminum LC4 by bipolar micro-arc oxidation power, and the influence of ratio J of the negative current density to the positive current density on the thickness h and the hardness H of micro-arc oxidation coatings was studied. By SEM and other modern materials testing and analyzing techniques, the microstructures of the micro-arc oxidation ceramic coatings were tested and analyzed. It was showed that the micro-structure is compact, and the ceramic coating almost has non-porous layer.

Info:

Periodical:

Edited by:

Dunwen Zuo, Hun Guo, Hongli Xu, Chun Su, Chunjie Liu and Weidong Jin

Pages:

492-495

DOI:

10.4028/www.scientific.net/AMM.33.492

Citation:

P. N. Wu et al., "Preparation of Compact Micro-Arc Oxidation Coatings on Aluminum Alloys", Applied Mechanics and Materials, Vol. 33, pp. 492-495, 2010

Online since:

October 2010

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Price:

$35.00

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