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| Influence of 5% NaCl Salt Spray Environment on the Performance of Aluminum Alloy Riveted Protection Structure |
| Received:March 21, 2019 Revised:April 16, 2019 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2019.11.010 |
| KeyWord:2024 aluminum alloy riveted structure 5% NaCl salt spray environment corrosion fatigue life |
| Author | Institution |
| HAN Yun |
Naval Equipment Department Wuyhan Bureau of Military Representatlie, Wuhan , China |
| ZHAO Lian-hong |
Key Laboratory of Structure Corrosion Protection and Control of Aviation Science and Technology, China Special Vehicle Research Institute, Jingmen , China |
| ZHANG Hong-fei |
Key Laboratory of Structure Corrosion Protection and Control of Aviation Science and Technology, China Special Vehicle Research Institute, Jingmen , China |
| YE Yuan-heng |
Key Laboratory of Structure Corrosion Protection and Control of Aviation Science and Technology, China Special Vehicle Research Institute, Jingmen , China |
| LIU Cheng-chen |
Key Laboratory of Structure Corrosion Protection and Control of Aviation Science and Technology, China Special Vehicle Research Institute, Jingmen , China |
| LIU Yuan-hai |
Key Laboratory of Structure Corrosion Protection and Control of Aviation Science and Technology, China Special Vehicle Research Institute, Jingmen , China |
| WANG Hao-wei |
Key Laboratory of Structure Corrosion Protection and Control of Aviation Science and Technology, China Special Vehicle Research Institute, Jingmen , China |
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| Abstract: |
| Objective To study corrosion fatigue properties of 2024 aluminum alloy in 5% NaCl salt spray environment. Methods Corrosion fatigue test of 2024 aluminum alloy was carried out in in 5% NaCl salt spray environment. The test mode of "corrosive environment - fatigue loading" alternate cycle was applied to get the corrosion fatigue life value of aluminum alloy riveted structure in 5% NaCl salt spray environment and analyze the influences of different fatigue loads on corrosion fatigue life of aluminum alloy joint structure. Results 5% NaCl salt spray environment had a great impact on the fatigue life of aluminum alloy joint structure. The effect of fatigue load was reflected in the protective performance of protective coating and the hysteresis effect of corrosion fatigue load. Compared with 0.3Pdamage load, the coating protection of 0.25Pfailure load had less effect, stronger low load exercise effect and less corrosion fatigue life reduction Conclusion The corrosion resistance of the 2024 aluminum alloy riveted structure is close related to the structural load and protective coating properties. |
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