Study of Tribological Properties of Micro-Arc Oxidation Ceramic Coatings Prepared with Different Impulse Frequency on Aluminum Alloy

Yu Gang Zheng; Hui Zhou; Han Jun Hu; Kai Feng Zhang; Zhi Hua Wang; Yan Shuai Zhang

doi:10.4028/www.scientific.net/AMR.538-541.368

Paper Titles

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 538-541Study of Tribological Properties of Micro-Arc...

Study of Tribological Properties of Micro-Arc Oxidation Ceramic Coatings Prepared with Different Impulse Frequency on Aluminum Alloy

Abstract:

The ceramic coatings, on the substrate of LY12 Al alloy, were prepared by micro-arc oxidation (MAO) technique with different electrical source parameters. The microstructure and tribological properties of the resulting micro-arc oxidation ceramic coatings(MAOC) were tested and analyzed by Nano-scratch tester, Micro-hardness tester and ball-on-disk friction tester etc. The results indicate that the thickness, roughness, micropore sizes and wear-resistance of MAOC increase with impulse frequency decreasing, however, the porosity is correspondingly reduced.

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Periodical:

Advanced Materials Research (Volumes 538-541)

Pages:

368-372

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.538-541.368

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Online since:

June 2012

Authors:

Yu Gang Zheng, Hui Zhou, Han Jun Hu, Kai Feng Zhang, Zhi Hua Wang, Yan Shuai Zhang

Keywords:

Ceramic Coating, Friction and Wear, Impulse Frequency, Micro-Arc Oxidation

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