| 铝合金管件失效原因分析 |
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| 引用本文： | 万蕾,有移亮,韩灵辉,李勇,张峥. 铝合金管件失效原因分析[J]. 金属热处理, 2007, 32(4): 94-97 |
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| 作者姓名： | 万蕾 有移亮 韩灵辉 李勇 张峥 |
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| 作者单位： | 北京航空航天大学,材料科学与工程学院,北京,100083;国营第5413厂,河北,石家庄,050031;中国兵器科学研究院,北京,100089 |
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| 摘 要： | 对失效铝合金管进行了宏观形貌观察、材质检验、断口微观形貌观察及应力分析.结果表明,铝合金管外壁存在凹坑,在水压试验中管件承受一定内压,在凹坑处产生应力集中导致了管沿轴向断裂.建议加强对铝合金管的荧光检测.
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| 关 键 词： | 铝合金管 轴向开裂 应力集中 |
| 文章编号： | 0254-6051（2007）04-0094-04 |
| 修稿时间： | 2006-12-24 |
Failure Analysis of Aluminum Alloy Tube |
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| WAN Lei,YOU Yi-liang,HAN Ling-hui,LI Yong,ZHANG Zheng. Failure Analysis of Aluminum Alloy Tube[J]. Heat Treatment of Metals, 2007, 32(4): 94-97 |
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| Authors: | WAN Lei YOU Yi-liang HAN Ling-hui LI Yong ZHANG Zheng |
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| Affiliation: | 1. College of Materials Science and Engineering, Beihang University, Beijing 100083, China ;2. State No. 5413 Factory, Shijiazhuang Hebei 050031, China ;3. China Academy of Enginery Sciences, Beijing 100089, China |
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| Abstract: | The failure reason of the aluminum alloy tube was investigated by macroscopic and microcosmic appearance observement, quality of material test, the stress analysis. The results show that there are little concave pits on the outside surface of the tube,when the tube is being used, there would be stress-concentration in the concave pits, this would lead to the rupture. The improvement suggestion is given to strengthen fluorescence nondestructive test for the tube. |
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| Keywords: | aluminum alloy tube rupture along axial direction stress concentration |
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