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| Study on Corrosion Resistance of Different Thickness Micro-arc Oxidation Film of Cast Aluminum Alloy |
| Received:September 30, 2011 Revised:June 15, 2012 |
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| DOI： |
| KeyWord:cast aluminum alloy micro-arc oxidation salt spray test corrosion damage |
| Author | Institution |
| TAN Xiao-ming |
Qingdao Branch of Naval Aeronautical Engineering Academy， Qingdao ， China |
| YANG Fang-fei |
Shenyang Aero engine Research Institute， Shenyang ， China |
| WANG Gang |
Qingdao Branch of Naval Aeronautical Engineering Academy， Qingdao ， China |
| SHEN Er-ming |
Shenyang Aero engine Research Institute， Shenyang ， China |
| YOU Bao-cai |
Shenyang Aero engine Research Institute， Shenyang ， China |
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| Abstract: |
| 960 hours of salt spray test were carried out on cast aluminum alloy specimen with different heat treatment and different thickness of micro-arc oxidation film. The result showed that the anti-corrosion performance of T7 is better than that of T5, and the micro-arc oxidation film improved corrosion resistance of cast aluminum alloy obviously. The corrosion depth of different thickness of micro-arc oxidation film has no difference, but the corrosion damage degree has obvious difference in the same area. The anti-corrosion performance of micro-arc oxidation film thickness of 50～70 μm is the best. |
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