| MIAO Jing-guo,CHEN Qiu-rong,DONG Xiang-yun,HAO Kang-da,WU run,WEI Zhong-ling.Influence of Manganese Element on Phase Composition of Plasma Electrolytic Oxidation Ceramic Coatings[J],42(3):46-48 |
| Influence of Manganese Element on Phase Composition of Plasma Electrolytic Oxidation Ceramic Coatings |
| Received:January 07, 2013 Revised:February 18, 2013 |
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| DOI： |
| KeyWord:plasma electrolytic oxidation manganese element ceramic layer phase composition |
| Author | Institution |
| MIAO Jing-guo |
Department of Mechanical and Electrical Engineering, Jiaxing Nanyang Vocational Technology College, Jiaxing , China;Materials and Metallurgy College,Wuhan University of Science and Technology,Wuhan , China |
| CHEN Qiu-rong |
Jiaxing Light Alloys Technology and Engineering Centre, Chinese Academy of Sciences, Jiaxing , China;Jiaxing Zhongke Asia Magnesium Technology Co. , Ltd. , Jiaxing , China |
| DONG Xiang-yun |
Materials and Metallurgy College,Wuhan University of Science and Technology,Wuhan , China |
| HAO Kang-da |
Materials and Metallurgy College,Wuhan University of Science and Technology,Wuhan , China |
| WU run |
Materials and Metallurgy College,Wuhan University of Science and Technology,Wuhan , China |
| WEI Zhong-ling |
Jiaxing Light Alloys Technology and Engineering Centre, Chinese Academy of Sciences, Jiaxing , China |
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| Abstract: |
| Applying plasma electrolytic oxidation in condition of Na2SiO3-NaOH solutions on pure aluminum 1070 and aluminum alloy 3003 . The thickness and microhardness of ceramic coatings were tested, and microstructure and phase composition of ceramic layer were analyzed. Results showed that, ceramic coatings of pure aluminum 1070 was consisted of phase α-Al2O3and phase γ-Al2O3, while aluminum alloy 3003 contained phase γ-Al2O3only; At the same processing time, the ceramic coatings of aluminum alloy 3003 were thicker but lower in micro-hardness and compactness than those of pure aluminum 1070 . Manganese element inhibited the formation of high temperature alumina phase on the reaction process. |
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