| 两种铝合金连接结构的腐蚀-疲劳循环试验研究 |
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| 引用本文： | 赵连红,张红飞,叶远桁,刘成臣,刘元海,王浩伟.两种铝合金连接结构的腐蚀-疲劳循环试验研究[J].装备环境工程,2019,16(10):95-99. |
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| 作者姓名： | 赵连红 张红飞 叶远桁 刘成臣 刘元海 王浩伟 |
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| 作者单位： | 中国特种飞行器研究所 结构腐蚀防护与控制航空科技重点实验室,湖北 荆门,448035;中国特种飞行器研究所 结构腐蚀防护与控制航空科技重点实验室,湖北 荆门,448035;中国特种飞行器研究所 结构腐蚀防护与控制航空科技重点实验室,湖北 荆门,448035;中国特种飞行器研究所 结构腐蚀防护与控制航空科技重点实验室,湖北 荆门,448035;中国特种飞行器研究所 结构腐蚀防护与控制航空科技重点实验室,湖北 荆门,448035;中国特种飞行器研究所 结构腐蚀防护与控制航空科技重点实验室,湖北 荆门,448035 |
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| 摘 要： | 目的研究2024铝合金两种连接形式在5%NaCl盐雾环境下的腐蚀疲劳性能。方法开展2024铝合金两种连接结构在5%NaCl盐雾环境下的腐蚀疲劳试验,采用"腐蚀环境-疲劳加载"交替循环的试验模式,通过试验测试铝合金两种连接形式在5%NaCl盐雾环境下的残余疲劳寿命值,分析连接方式对铝合金连接结构的残余疲劳寿命影响。结果 5%NaCl盐雾环境对于铝合金连接结构疲劳寿命有较大影响,相较于铝制铆接连接形式,钢制螺栓连接方式连接部位的涂层破坏较少,涂层防护效果更好,疲劳寿命降低量更少。结论金属结构连接形式与防护涂层的搭配对结构耐腐蚀性能有重要影响。
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| 关 键 词： | 2024铝合金 连接形式 5 NaCl盐雾环境 残余疲劳寿命 |
| 收稿时间： | 2019/3/12 0:00:00 |
| 修稿时间： | 2019/4/13 0:00:00 |
Corrosion-Fatigue Cycle Test of Two Aluminum Alloy Connection Structures |
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| ZHAO Lian-hong,ZHANG Hong-fei,YE Yuan-heng,LIU Cheng-chen,LIU Yuan-hai and WANG Hao-wei.Corrosion-Fatigue Cycle Test of Two Aluminum Alloy Connection Structures[J].Equipment Environmental Engineering,2019,16(10):95-99. |
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| Authors: | ZHAO Lian-hong ZHANG Hong-fei YE Yuan-heng LIU Cheng-chen LIU Yuan-hai and WANG Hao-wei |
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| Institution: | Key Laboratory of Structure Corrosion Protection and Control of Aviation Science and Technology, China Special Vehicle Research Institute, Jingmen 448035, China,Key Laboratory of Structure Corrosion Protection and Control of Aviation Science and Technology, China Special Vehicle Research Institute, Jingmen 448035, China,Key Laboratory of Structure Corrosion Protection and Control of Aviation Science and Technology, China Special Vehicle Research Institute, Jingmen 448035, China,Key Laboratory of Structure Corrosion Protection and Control of Aviation Science and Technology, China Special Vehicle Research Institute, Jingmen 448035, China,Key Laboratory of Structure Corrosion Protection and Control of Aviation Science and Technology, China Special Vehicle Research Institute, Jingmen 448035, China and Key Laboratory of Structure Corrosion Protection and Control of Aviation Science and Technology, China Special Vehicle Research Institute, Jingmen 448035, 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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| Keywords: | 2024 aluminum alloy connecting type 5% NaCl salt spray residual fatigue life |
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