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| Corrosion-Fatigue Cycle Test of Two Aluminum Alloy Connection Structures |
| Received:March 12, 2019 Revised:April 13, 2019 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2019.10.016 |
| KeyWord:2024 aluminum alloy connecting type 5% NaCl salt spray residual fatigue life |
| Author | Institution |
| 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 the corrosion fatigue properties of two joint forms of 2024 aluminum alloy in 5% NaCl salt spray. Methods Corrosion fatigue test of two joint structures of 2024 aluminum alloy was carried out in 5% NaCl salt spray environment. the test mode of "corrosive environment - fatigue loading" alternate cycle was applied to get residual fatigue life values of two joint forms of aluminum alloy in 5% NaCl salt spray environment and Analyze the influence of connection method on residual 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. Compared with the aluminum riveted joint, the steel bolted joint had less deformation at the joint, better coating protection effect and less fatigue life reduction. Conclusion The combination of the metal structure connection form and the protective coating has an important influence on the corrosion resistance of the structure. |
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