| 超声冲击对镁合金焊接接头疲劳性能的研究现状 |
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| 引用本文： | 何柏林.超声冲击对镁合金焊接接头疲劳性能的研究现状[J].华东交通大学学报,2011,28(3):73-77. |
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| 作者姓名： | 何柏林 |
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| 作者单位： | 华东交通大学机电工程学院,江西南昌,330013 |
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| 基金项目： | 国家自然科学基金，江西省自然科学基金 |
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| 摘 要： | 概述了镁合金及镁合金焊接接头疲劳性能国内外研究现状,指出了目前镁合金焊接接头疲劳性能研究存在的问题与不足,最后分析了提高镁合金焊接接头疲劳性能和疲劳寿命的研究趋势.超声冲击方法不仅可以有效地降低焊接接头的应力集中系数,降低接头的残余拉伸应力,甚至在焊接接头表面造成残余压应力,还可以细化焊缝及其附近区域的显微组织,甚至达...
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| 关 键 词： | 镁合金 焊接接头 疲劳性能 超声冲击 |
Researching Status and Developing Trend of the Effect of Ultrasonic Impact on Fatigue Properties of Magnesium Weld Joints |
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| He Bolin.Researching Status and Developing Trend of the Effect of Ultrasonic Impact on Fatigue Properties of Magnesium Weld Joints[J].Journal of East China Jiaotong University,2011,28(3):73-77. |
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| Authors: | He Bolin |
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| Institution: | He Bolin(School of Mechanical and Electrical Engineering,East China Jiaotong University,Nanchang 330013,China) |
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| Abstract: | Researching status and developing trend of the fatigue properties of magnesium weld joints are reviewed,and the main problems and recent developing focus and goals are outlined.The developing trend of increasing the fatigue properties and fatigue life is analyzed.The ultrasonic impact method can not only decrease the stress concentration coefficient and tension residual stress,but also refine the grain size of weld joints,even compressive stress and nanograins.The method is helpful to increase fatigue properties and life of magnesium weld joints. |
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| Keywords: | magnesium alloy weld joints fatigue properties ultrasonic impact |
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