| 6005A合金搅拌摩擦焊接头疲劳性能的研究 |
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| 引用本文： | 刘艳,王淮,宫文彪,王振吉.6005A合金搅拌摩擦焊接头疲劳性能的研究[J].吉林工学院学报,2009,30(1):12-17. |
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| 作者姓名： | 刘艳 王淮 宫文彪 王振吉 |
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| 作者单位： | 刘艳,王淮,宫文彪,LIU Yan,WANG Huai,GONG Wen-biao(长春工业大学,先进结构材料教育部重点实验室,吉林,长春,130012);王振吉,WANG Zhen-ji(吉林省新立城水库管理局,吉林,长春,130119)
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| 摘 要： | 对6005A—T6铝合金FSW接头、母材以及MIG焊接头进行了疲劳性能试验对比研究。结果表明，FSW接头的抗拉强度约是母材抗拉强度的82．5％；MIG焊试样的抗拉强度约是母材抗拉强度的73．4％。当循环周次N〉10^7时，FSW试样的疲劳强度值接近于母材，约为母材疲劳强度值的93％，而MIG焊试样的疲劳强度值仅为母材的67％。FSW接头热影响区的断口疲劳区形貌为准解理和韧窝的组合形貌。准解理型穿晶扩展裂纹与FSW接头热影响区中原母材枝晶结构有关，断口扩展区形貌为韧窝状形貌。
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| 关 键 词： | 铝合金 搅拌摩擦焊 疲劳 |
Fatigue performance research of friction stir welding joint of 6005A alloy |
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| LIU Yan,WANG Huai,GONG Wen-biao,WANG Zhen-ji.Fatigue performance research of friction stir welding joint of 6005A alloy[J].Journal of Jilin Institute of Technology,2009,30(1):12-17. |
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| Authors: | LIU Yan WANG Huai GONG Wen-biao WANG Zhen-ji |
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| Institution: | 1.Key Laboratory of Advanced Structrural Materials;Ministry of Education;Changchun University of Technology;Changchun 130012;China;2.Jilin Province Xinlicheng Reservoir Administration;Changchun 130119;China |
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| Abstract: | Comparing experiments are made among 6005A-T6 Alalloy FSW joint,base metal and MIG welding joint.The results show that the tensile strength of FSW joint is 82.5% of that of the base metal,and the tensile strength of MIG joint is 73.4% of that of the base metal.When the circulating-time N is larger than 107,the fatigue strength of the FSW joint approaches to that of the base metal,and is about 93% of the that of base metal but the fatigue strength of the MIG joint is 67% of that of the base metal.The shape o... |
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| Keywords: | aluminum alloy friction stir welding fatigue |
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