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轴肩尺寸对异种铝合金材料搅拌摩擦焊接头显微组织的影响规律

张津, 计鹏飞, 周俊, 连勇

张津, 计鹏飞, 周俊, 连勇. 轴肩尺寸对异种铝合金材料搅拌摩擦焊接头显微组织的影响规律[J]. 焊接学报, 2016, 37(11): 51-54.
引用本文: 张津, 计鹏飞, 周俊, 连勇. 轴肩尺寸对异种铝合金材料搅拌摩擦焊接头显微组织的影响规律[J]. 焊接学报, 2016, 37(11): 51-54.
ZHANG Jin, JI Pengfei, ZHOU Jun, LIAN Yong. Effect of shoulder diameter on microstructure of dissimilar Al alloys friction stir welding joint[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2016, 37(11): 51-54.
Citation: ZHANG Jin, JI Pengfei, ZHOU Jun, LIAN Yong. Effect of shoulder diameter on microstructure of dissimilar Al alloys friction stir welding joint[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2016, 37(11): 51-54.

轴肩尺寸对异种铝合金材料搅拌摩擦焊接头显微组织的影响规律

基金项目: 国家自然科学基金资助项目(51275037)

Effect of shoulder diameter on microstructure of dissimilar Al alloys friction stir welding joint

  • 摘要: 对5083铝/6082铝异种材料搅拌摩擦焊(friction stir welding,FSW)进行研究,重点分析轴肩直径对横截面形貌、显微组织与显微硬度的影响规律.结果表明,FSW接头焊核区由致密细小的等轴晶组成;增加轴肩直径可增加焊核区沿垂直焊缝方向的宽度以及增大焊核区、热影响区与热力影响区的晶粒尺寸.与后退侧的6082铝合金不同,前进侧5083铝合金的热力影响区发生了动态再结晶.显微硬度呈W形分布,最小值出现在热影响区.显微硬度的测试结果与焊核区的横截面形貌结果吻合.
    Abstract: Dissimilar 5083/6082 Al alloys friction stir welding (FSW) joint was experimentally investigated. Effects of the shoulder diameter on the cross section morphology, microstructure and microhardness are mainly discussed. The welded zone of FSW joint is characterized with fine and equiaxed grains. With the increase of shoulder diameter, the cross section of weld zone perpendicular to the weld is enlarged and all the grains size of the welded zone, heat affected zone and thermo-mechanically affected zone increases. The dynamic recrystallization happens in thermo-mechanically affected zone of 5083 Al alloy at advancing side, which is different to the 6082 Al alloy at retreating side. The microhardness distribution presents a W shape and the minimum value locates at the heat affected zone. The result of microhardness agrees with the cross-section morphology of the welded zone.
  • [1] Mishra R S, Ma Z Y. Friction stir welding and processing[J]. Materials Science and Engineering:R, 2005, 50(1/2):1-78.
    [2] 姬书得, 孟祥晨, 黄永宪, 等. 搅拌头旋转频率对静止轴肩搅拌摩擦焊接头力学性能的影响规律[J]. 焊接学报, 2015, 36(1):51-54. Ji Shude, Meng Xiangchen, Huang Yongxian, et al. Effect of rotational velocity of tool on mechanical properties of stationary shoulder friction stir welding. Transactions of the China Welding Institution, 2015,36(1):51-54.
    [3] Aval H J, Serajzadeh S, Sakharova N, et al. A study on microstructures and residual stress distributions in dissimilar friction-stir welding of AA5086-AA6061[J]. Journal of Materials Science, 2012, 47(14):5428-5437.
    [4] 王凡, 房湛, 徐琛, 等. 异种高强铝合金间搅拌摩擦焊接头组织与性能研究[J]. 航空材料学报, 2015, 35(1):33-38. Wang Fan, Fang Zhan, Xu Chen, et al. Microstructure and mechanical properties of FSW joints between dissimilar high-strength aluminum alloys[J]. Journal of Aeronautical Materials, 2015, 35(1):33-38.
    [5] Ilangovan M, Boopathy S R, Balasubramanian V, et al. Microstructure and tensile properties of friction stir welded dissimilarAA6061-AA5086 aluminium alloy joints[J]. Transactions of Nonferrous Metals Society of China, 2015, 25:1080-1090.
    [6] 刘鸽平, 黄春平, 邢丽, 等. LD31-LF6铝合金搅拌摩擦焊接头组织与性能[J]. 南昌航空大学学报(自然科学版), 2008, 22(1):15-19. Liu Geping, Huang Chunping, Xing Li, et al. The organization and performance of LD31-LF6 aluminum alloy friction stir welding[J]. Journal of Nanchang Hangkong University (Natural Science Edition), 2008, 22(1):15-19.
    [7] Jin H, Saimoto S, Ball M, et al. Characterisation of microstructure and texture in friction stir welded joints of 5754 and 5182 aluminium alloy sheets[J]. Materials Science and Technology, 2001, 17(12):1605-1614..
    [8] Agarwal S, Briant C L, Hector Jr L G, et al. Friction stir processed AA5182-O and AA6111-T4 aluminum alloys. Part 1:electron backscattered diffraction analysis[J]. Journal of materials engineering and performance, 2007, 16(4):391-403.
    [9] Yue Y M, Li Z W, Ji S D, et al. Effect of reverse-threaded pin on mechanical properties of friction stir lap welded alclad 2024 aluminum alloy[J]. Journal of Materials Science and Technology, 2016, 32(7):671-675.
    [10] 张会杰, 王敏, 张骁, 等. 2A14-T6铝合金双轴肩搅拌摩擦焊特征及接头组织性能分析[J]. 焊接学报, 2015, 36(12):65-68. Zhang Huijie, Wang Min, Zhang Xiao, et al. Characteristics and joint microstructure-property analysis of bobbin tool friction stir welding of 2A14-T6 aluminum alloy[J]. Transactions of the China Welding Institution, 2015, 36(12):65-68.
    [11] 张成聪, 常保华, 陶军, 等. 7050铝合金搅拌摩擦焊动态再结晶组织影响因素[J]. 焊接学报, 2012, 33(8):89-92. Zhang Chengcong, Chang Baohua, Tao Jun, et al. Influence factors of dynamic recrystallization of 7050 aluminium alloy friction stir weld[J]. Transactions of the China Welding Institution, 2012, 33(8):89-92.
    [12] Steuwer A, Peel M J, Withers P J. Dissimilar friction stir welds in AA5083-AA6082:The effect of process parameters on residual stress[J]. Materials Science and Engineering:A, 2006, 441(1/2):187-196.
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出版历程
  • 收稿日期:  2016-07-17

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