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| Protective Performance and Failure Behavior on Anodized Aluminum Alloy |
| Received:September 27, 2018 Revised:March 25, 2019 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/ issn.1672-9242.2019.03.012 |
| KeyWord:aluminum alloy corrosion resistance NSS CASS anodic oxidation sealing treatment |
| Author | Institution |
| QIAN Jian-cai |
1. Southwest Research Institute of Technology and Engineering, Chongqing , China; 2. China Weathering Test and Research Center of Science Technology and Industry for National Defense, Chongqing , China |
| ZOU Hong-qing |
1. Southwest Research Institute of Technology and Engineering, Chongqing , China; 2. China Weathering Test and Research Center of Science Technology and Industry for National Defense, Chongqing , China |
| FANG Min |
1. Southwest Research Institute of Technology and Engineering, Chongqing , China; 2. China Weathering Test and Research Center of Science Technology and Industry for National Defense, Chongqing , China |
| XU Bin |
1. Southwest Research Institute of Technology and Engineering, Chongqing , China; 2. China Weathering Test and Research Center of Science Technology and Industry for National Defense, Chongqing , China |
| LYU Ji-cheng |
1. Southwest Research Institute of Technology and Engineering, Chongqing , China; 2. China Weathering Test and Research Center of Science Technology and Industry for National Defense, Chongqing , China |
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| Abstract: |
| Objective To study the protective effect and failure behavior of anodic oxidation film on aluminum alloy in different corrosive environments. Methods Accelerated tests were conducted by neutral salt spray test (NSS) and copper-accelerated acetic acid salt spray (CASS). The corrosion morphology of scratched samples and the corrosion appearance and adhesion of non-scratched samples were examined and analyzed. Results Protective performance, corrosion failure, changes in adhesion and anti-corrosion propagation performance of anodic oxide coatings of four kinds of aluminum alloy materials in different test environments were obtained. Conclusion Types of aluminum alloy have significant effects on anti-corrosion propagation performance of the unsealed anodic oxide coatings. Sealing treatment can significantly improve the comprehensive protective properties of anodic oxide film on aluminum alloy. |
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