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铝合金搅拌摩擦焊焊核紊流区及性能分析

罗传红, 郭立杰, 董丰波, 张建强, 彭卫平

罗传红, 郭立杰, 董丰波, 张建强, 彭卫平. 铝合金搅拌摩擦焊焊核紊流区及性能分析[J]. 焊接学报, 2016, 37(1): 90-94.
引用本文: 罗传红, 郭立杰, 董丰波, 张建强, 彭卫平. 铝合金搅拌摩擦焊焊核紊流区及性能分析[J]. 焊接学报, 2016, 37(1): 90-94.
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LUO Chuanhong, GUO Lijie, DONG Fengbo, ZHANG Jianqiang, PENG Weiping. Analysis of turbulent flowing zone in friction stir welded aluminum alloy weld nugget[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2016, 37(1): 90-94.
Citation: LUO Chuanhong, GUO Lijie, DONG Fengbo, ZHANG Jianqiang, PENG Weiping. Analysis of turbulent flowing zone in friction stir welded aluminum alloy weld nugget[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2016, 37(1): 90-94.
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铝合金搅拌摩擦焊焊核紊流区及性能分析

  • 1.

    武汉大学 动力与机械学院, 武汉 430072

  • 2.

    上海航天设备制造总厂, 上海 200245

基金项目: 上海航天创新基金资助项目(2015056)

Analysis of turbulent flowing zone in friction stir welded aluminum alloy weld nugget

  • 1.

    School of Power and Mechanical Engineering, Wuhan University, Wuhan 430072, China

  • 2.

    Shanghai Aerospace Equipments Manufacturer, Shanghai 200245, China

摘要

    摘要
  • 摘要: 采用搅拌摩擦焊方法对2219-T6铝合金进行焊接,对焊接接头的宏观形貌、微观组织、抗拉强度进行了分析,并通过对焊核塑性金属的流动状态进行分析,研究了搅拌摩擦焊接头强度弱化的原因. 结果表明,焊核根据流态可分为3个不同的区域,其中靠前进侧存在一个性能薄弱的B区域,该区的产生是抽吸挤压作用不平衡的结果,也是塑性金属向上回流通道. 该区具有较大的塑性损伤,易产生疏松缺陷及界面突变,晶粒具有较大的热不稳定性,是造成接头强度低于母材的主要原因之一. 通过高温短时的再结晶热处理工艺可以恢复该区域的强韧性,消除弱化问题.
    Abstract: A 2219-T6 aluminum alloy plate was welded by friction stir welding, and the morphology, microstructure and mechanical properties of the joint were investigated correspondingly. Through analyzing the flowing pattern of the plastically deformed metal in the nugget zone, the strength weakening of the joint were analyzed and summarized. The results show that the welded nugget is divided into three different regions according to the flowing pattern of plastic metal, and a turbulent flowing region is produced by unbalanced suction and extrusion of plastic metal at the front side of joint. This region with weak mechanical properties is a channel for the back flow of plastic metal. The weakening strength is due to the plastic deformation induced damage of the metal, which resulted in the formation of defects and the mutational interface. Moreover, grains in the turbulent flowing region presented large thermal instability. After the recrystallization heat treatment, the joint can restore the ductility, which will improve the mechanical properties of the joint.
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    • 参考文献(8)
  • [1] Murr L E, Liu G,MeClure J C. Dynamic recrystallization in friction stir welding of aluminum alloy1100[J]. Journal of Materials Science Letters, 1997, 16(22): 1801-1806.
    [2] Rhodnev C G, Mahonev M V, Bingel W H, et al. Effect of friction stir welding on mierostrueture of 7075 aluminum[J]. Seripta Materialia, 1997, 37(1): 69-73.
    [3] 贺地求, 邓 航, 周鹏展. 2219厚板拌摩擦焊组织及性能分析[J]. 焊接学报, 2007, 28(9): 13-16. He Diqiu, Deng Hang, Zhou Pengzhan. Analysis of microstructure and properties in friction-stir welding of 2219 thick plate[J]. Transactions of the China Welding Institution, 2008, 28(9): 13-16.
    [4] 王春炎, 曲文卿, 姚君山, 等. 2219-T87铝合金搅拌摩擦焊接头组织与力学性能[J]. 焊接学报, 2010, 31 (10): 77-80. Wang Chunyan,Qu Wenqing,Yao Junshan,et al. Microstructures and mechanical properties of friction stir welded 2219-T87 aluminum alloy joints[J]. Transactions of the China Welding Institution, 2010, 31(10): 77-80.
    [5] 徐忠峰, 陆 皓, 余 春, 等. 2219铝合金双主轴回抽式搅拌摩擦焊接头组织与力学性能分析[J]. 焊接学报, 2013, 34(3): 73-76. Xu Zhongfeng, Lu Hao, Yu Chun, et al. Microstructure and mechanical properties of 2219 aluminum alloy refilling friction stir welded joints[J]. Transactions of the China Welding Institution, 2013, 34(3): 73-76.
    [6] 吴鸿燕, 刑 丽, 陈玉华, 等. 2219铝合金搅拌摩擦焊接头的断裂部位特征[J]. 金属热处理, 2011, 36(5): 90-93. Wu Hongyan, Xing Li, Chen Yuhua, et al. Fracture location characteristics of 2219 alum inum alloy friction stir welded joints[J].Heat Treatment of metals, 2011, 36(5): 90-93.
    [7] 柯黎明, 潘际銮, 邢 丽, 等. 搅拌摩擦焊焊缝金属塑性流动的抽吸-挤压理论[J]. 机械工程学报, 2009, 45(4): 89-94. Ke Liming, Pan Jiluan, Xing Li, et al. Sucking-extruding theory for the material flow in friction stir welds[J]. Journal of Mechanical Engineering, 2009, 45(4): 89-94.
    [8] 罗传红, 彭卫平, 张建强, 等. 焊后热处理对2219-T6铝合金搅拌摩擦焊接头力学性能的影响[J]. 材料热处理学报, 2015, 36(3): 35-39. Luo Chuanhong, Peng Weiping, Zhang Jianqiang, et al. Effect of post weld heat treatment on mechanical properties of friction stir welded joints for 2219-T6 aluminum alloy[J]. Transactions of Materials and Heat Treatment, 2015, 36(3): 35-39.
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  • 收稿日期:  2015-03-23

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