| 超声冲击处理对2A12铝合金焊接接头疲劳性能的影响 |
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| 引用本文： | 李占明,朱有利,辛毅.超声冲击处理对2A12铝合金焊接接头疲劳性能的影响[J].航空材料学报,2011,31(2):28-32. |
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| 作者姓名： | 李占明 朱有利 辛毅 |
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| 作者单位： | 装甲兵工程学院装备再制造工程系,北京,100072 |
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| 基金项目： | 北京市自然科学基金资助(3093027) |
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| 摘 要： | 采用超声冲击处理方法对2A12铝合金焊接接头进行全覆盖强化处理.通过弯曲疲劳对比试验,建立了未处理与超声冲击强化处理铝合金焊接接头试样的S-N曲线,分析了超声冲击处理对铝合金焊接接头疲劳性能的影响;通过接头组织、残余应力和断口形貌分析了超声冲击处理提高铝合金焊接接头抗疲劳断裂性能的微观机理.结果表明,超声冲击处理使2A...
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| 关 键 词： | 超声冲击处理 铝合金 焊接接头 疲劳 |
Influence of Ultrasonic Impact Treatment on Fatigue Properties of 2A12 Aluminum Alloy Welded Joints |
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| LI Zhan-ming,ZHU You-li,XIN Yi.Influence of Ultrasonic Impact Treatment on Fatigue Properties of 2A12 Aluminum Alloy Welded Joints[J].Journal of Aeronautical Materials,2011,31(2):28-32. |
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| Authors: | LI Zhan-ming ZHU You-li XIN Yi |
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| Institution: | LI Zhan-ming,ZHU You-li,XIN Yi(Faculty of Remanufacturing Engineering,Academy of Armored Forces Engineering,Beijing 100072,China) |
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| Abstract: | 2A12 aluminum alloy welded joint was full coverage strengthened by ultrasonic impact treatment(UIT).The S-N curves of welded joint samples with and without UIT were set up by making bending fatigue test.The effect of UIT on fatigue properties of aluminum alloy welded joint was analyzed.The fatigue fracture mechanisms of these samples with and without UIT were studied by microstructure,residual stress and fracture surface analysis.The results showed that the fatigue limit of 2A12 aluminum alloy butt-welded j... |
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| Keywords: | ultrasonic impact treatment aluminum alloy welded joint fatigue properties |
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