Preparation of Compact Micro-Arc Oxidation Coatings on Aluminum Alloys

Pei Nian Wu; J.J. Xi; Jun Zhao; T.J. Wang

doi:10.4028/www.scientific.net/AMM.33.492

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Trial on C₃N₄ Coating Cutter Hard-Dry Cutting on Hardened Steel
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Preparation of Compact Micro-Arc Oxidation Coatings on Aluminum Alloys
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Parameterized Finite Element Analysis System of Turbine Rotor Thermal Deformation Based on the Secondary Development of ANSYS
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 33Preparation of Compact Micro-Arc Oxidation...

Preparation of Compact Micro-Arc Oxidation Coatings on Aluminum Alloys

Abstract:

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.