ZheJiang Undergraduate Scientific and Technological Innovation Project
The ceramic coatings on LY12 aluminum alloy were fabricated by applying plasma microarc oxidation technique. The microstructure and properties of the ceramic coatings were studied. The results show that the ceramic coating is composed of a two-layer structure with the surface loose zone and the inner compact zone. The maximum hardness and elastic modulus values of the ceramic coating were 25GPa and 300GPa respectively. After undergoes 40 times heat shock circulation from 300℃ to 15℃, neither cracks nor breaking-off was found. The friction coefficient of the black ceramic coating against bearing steel in air is in the range of 0.25-0.37, showing a good wear resistance.
张汀,袁航,颜余仁,等. 铝合金微弧氧化陶瓷膜的组织与性能研究[J]. 科学技术与工程, 2011, (1): .
Zhang Ting,,,et al. Microstructure and Properties of Ceramic Coating by Microarc Oxidation on Aluminum Alloy[J]. Science Technology and Engineering,2011,(1).