| 铝合金框开裂的失效分析 |
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| 引用本文： | 白明远,马海全,曲士昱,杨胜.铝合金框开裂的失效分析[J].装备环境工程,2011,8(2):1-3. |
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| 作者姓名： | 白明远 马海全 曲士昱 杨胜 |
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| 作者单位： | 1. 北京航空材料研究院,北京,100095
2. 北京航空材料研究院,北京,100095;南昌航空大学,南昌,330063 |
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| 摘 要： | 某型铝合金框使用不久后,在其表面发现裂纹.通过对铝合金框裂纹断口进行宏微观观察、能谱分析以及显微材料的组织分析,确定了其开裂的性质和原因.结果表明,裂纹断口上存在大量呈泥纹花样的氧化物和氯化物的腐蚀产物,铝合金框的开裂为应力腐蚀开裂.由于铝合金框内表面局部区域涂漆较薄或缺乏保护,使得该框在工作应力和外界介质的协同作用下...
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| 关 键 词： | 铝合金框 裂纹 应力腐蚀 |
| 收稿时间： | 7/8/2010 12:00:00 AM |
| 修稿时间： | 2011/4/15 0:00:00 |
Failure Analysis of Fracture on Aluminum Alloy Frame |
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| BAI Ming-yuan,MA Hai-quan,QU Shi-yu and YANG Sheng.Failure Analysis of Fracture on Aluminum Alloy Frame[J].Equipment Environmental Engineering,2011,8(2):1-3. |
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| Authors: | BAI Ming-yuan MA Hai-quan QU Shi-yu and YANG Sheng |
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| Institution: | 1.Beijing Institute of Aeronautical Materials,Beijing 100095,China;2.Nanchang Hangkong University,Nanchang 330063,China) |
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| Abstract: | Cracks were found on aluminum alloy frame not long after application.The cracks were studied using macro and micro observation,EDS,and microstructure analysis methods.The results showed that there are a lot of oxide and chloride resulting from corrosion on the fracture surface;the fracture mode of the aluminum frame is stress-corrosion.The stress-corrosion cracks were caused by thin coat of paint or lacking of protection of local area on inner surface,and stress corrosion cracking was created by working stress and external environment.Improvement of inner surface prevention technology of aluminum alloy frame was suggested. |
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| Keywords: | aluminum alloy frame crack stress-corrosion |
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