留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码
Volume 24 Issue 2
Feb.  2017
Turn off MathJax
目录
数据统计

分享

计量
  • 文章访问数:  446
  • HTML全文浏览量:  45
  • PDF下载量:  17
  • 被引次数: 0
文章导航 >  矿物冶金与材料学报（英文）  > 2017  >  24(2): 171-178
Ji-hong Dong, Chong Gao, Yao Lu, Jian Han, Xiang-dong Jiao, and Zhi-xiong Zhu, Microstructural characteristics and mechanical properties of bobbin-tool friction stir welded 2024-T3 aluminum alloy, Int. J. Miner. Metall. Mater., 24(2017), No. 2, pp. 171-178. https://doi.org/10.1007/s12613-017-1392-7
Cite this article as:
Ji-hong Dong, Chong Gao, Yao Lu, Jian Han, Xiang-dong Jiao, and Zhi-xiong Zhu, Microstructural characteristics and mechanical properties of bobbin-tool friction stir welded 2024-T3 aluminum alloy, Int. J. Miner. Metall. Mater., 24(2017), No. 2, pp. 171-178. https://doi.org/10.1007/s12613-017-1392-7
shu
引用本文 PDF XML SpringerLink
研究论文

Microstructural characteristics and mechanical properties of bobbin-tool friction stir welded 2024-T3 aluminum alloy

  • Mechanical and Electrical Engineering Institute, Beijing University of Chemical Technology, Beijing 100089, China

  • China Friction Stir Welding Center, Beijing Aeronautical Manufacturing Technology Research Institute, Beijing 100024, China

  • Chinalco Research Institute of Science and Technology, Beijing 100082, China

  • School of Mechanical, Materials and Mechatronic Engineering, University of Wollongong, New South Wales 2522, Australia

  • Research Centre of Joining Technology in Ocean Engineering, Beijing Institute of Petrochemical Technology, Beijing 102617, China

  • 通讯作者:

    Chong Gao    E-mail: chong_gao@chalco.com.cn

  • Cold-rolled 2024-T3 sheet alloy was subjected to bobbin-tool friction stir welding (BTFSW). The microstructural characteristics and mechanical properties of the nugget zone in the as-welded state were investigated. The results show that the equiaxed grain size of BTFSW 2024-T3 alloy decreases from 7.6 to 2.8 μm as the welding speed is increased from 80 to 120 mm/min; in addition, fine grains are generated in the nugget zone and the size distribution is non-uniform. All Al2CuMg (S') precipitates dissolve into the Al matrix, whereas Mn-rich phases confirmed as T phases (Al20Cu2Mn3, Al6Mn, or Al3Mn) remain unchanged. The optimized parameters for BTFSW are verified as the rotation speed of 350 r/min and the travel speed of 100 mm/min. The variations in precipitation and dislocation play more important roles than grain size in the nugget zone with respect to influencing the mechanical properties during the BTFSW process. After the BTFSW process, the fracture mode of base material 2024-T3 alloy transforms from ductile rupture to ductile-brittle mixed fracture.
    • Research Article

    Microstructural characteristics and mechanical properties of bobbin-tool friction stir welded 2024-T3 aluminum alloy

    + Author Affiliations
      Abstract
    • Cold-rolled 2024-T3 sheet alloy was subjected to bobbin-tool friction stir welding (BTFSW). The microstructural characteristics and mechanical properties of the nugget zone in the as-welded state were investigated. The results show that the equiaxed grain size of BTFSW 2024-T3 alloy decreases from 7.6 to 2.8 μm as the welding speed is increased from 80 to 120 mm/min; in addition, fine grains are generated in the nugget zone and the size distribution is non-uniform. All Al2CuMg (S') precipitates dissolve into the Al matrix, whereas Mn-rich phases confirmed as T phases (Al20Cu2Mn3, Al6Mn, or Al3Mn) remain unchanged. The optimized parameters for BTFSW are verified as the rotation speed of 350 r/min and the travel speed of 100 mm/min. The variations in precipitation and dislocation play more important roles than grain size in the nugget zone with respect to influencing the mechanical properties during the BTFSW process. After the BTFSW process, the fracture mode of base material 2024-T3 alloy transforms from ductile rupture to ductile-brittle mixed fracture.
      • FullText(HTML)
    • loading
      • Supplements(0)
      • References(16)
    • [1]
      R. Nandan, T. Debroy, and H.K.D.H. Bhadeshia, Recent advances in friction-stir welding process, weldment structure and properties, Prog. Mater. Sci., 53(2008), No. 6, p. 980.
      [2]
      W.J. Arbegast, A flow-partitioned deformation zone model for defect formation during friction stir welding, Scripta Mater., 58(2008), No. 5, p. 372.
      [3]
      H.L. Qin, H. Zhang, D.T. Sun, and Q.Y. Zhuang, Corrosion behavior of the friction-stir-welded joints of 2A14-T6 aluminum alloy, Int. J. Miner. Metall. Mater., 22(2015), No. 6, p. 627.
      [4]
      G.R. Cui, Z.Y. Ma, and S.X. Li, The origin of non-uniform microstructure and its effects on the mechanical properties of a friction stir processed Al-Mg alloy, Acta Mater., 57(2009), No. 19, p. 5718.
      [5]
      A.A. Nia and A. Shirazi, Effects of different friction stir welding conditions on the microstructure and mechanical properties of copper plates, Int. J. Miner. Metall. Mater., 23(2016), No. 7, p. 799.
      [6]
      J. Hilgert, J.F. dos Santos, and N. Huber, Shear layer modelling for bobbin tool friction stir welding, Sci. Technol. Weld. Joining, 17(2012), No. 6, p. 454.
      [7]
      H. Zhang, M. Wang, X. Zhang, and G. Yang, Microstructural characteristics and mechanical properties of bobbin tool friction stir welded 2A14-T6 aluminum alloy, Mater. Des., 65(2015), p. 559.
      [8]
      M.A. Sutton, B. Yang, A.P. Reynolds, and R. Taylor, Microstructural studies of friction stir welds in 2024-T3 aluminum, Mater. Sci. Eng. A, 323(2002), No. 1-2, p. 160.
      [9]
      B. Rahimi, H. Khosravi, and M. Haddad-Sabzevar, Microstructural characteristics and mechanical properties of Al-2024 alloy processed via a rheocasting route, Int. J. Miner. Metall. Mater., 22(2015), No. 1, p. 59.
      [10]
      Y.H. Yau, A. Hussain, R.K. Lalwani, H.K. Chan, and N. Hakimi, Temperature distribution study during the friction stir welding process of Al2024-T3 aluminum alloy, Int. J. Miner. Metall. Mater., 20(2013), No. 8, p. 779.
      [11]
      A.A. Csontos and E.A. Starke, The effect of inhomogeneous plastic deformation on the ductility and fracture behavior of age hardenable aluminum alloys, Int. J. Plast., 21(2005), No. 6, p. 1097.
      [12]
      C. Gao, Z. Zhu, J. Han, and H. Li, Correlation of microstructure and mechanical properties in friction stir welded 2198-T8 Al-Li alloy, Mater. Sci. Eng. A, 639(2015), p. 489.
      [13]
      J. Hilgert, H.N.B. Schmidt, J.F. dos Santos, and N. Huber, Thermal models for bobbin tool friction stir welding, J. Mater. Process. Technol., 211(2011), No. 2, p. 197.
      [14]
      Y.C. Chen, J.C. Feng, and H.J. Liu, Precipitate evolution in friction stir welding of 2219-T6 aluminum alloys, Mater. Charact., 60(2009), No. 6, p. 476.
      [15]
      J.M. Rosalie and L. Bourgeois, Silver segregation to θ'(Al2Cu)-Al interfaces in Al-Cu-Ag alloys, Acta Mater., 60(2012), No. 17, p. 6033.
      [16]
      F.F. Wang, W.Y. Li, J. Shen, S.Y. Hu, and J.F. dos Santos, Effect of tool rotational speed on the microstructure and mechanical properties of bobbin tool friction stir welding of Al-Li alloy, Mater. Des., 86(2015), p. 933.
      • Relative Articles
      Cited By

    Catalog


    • /

      返回文章
      返回

      版权所有 ©《矿物冶金与材料学报（英文）》编辑部

      地址：北京市海淀区学院路30号邮政编码：100083

      电子邮箱：journal@ustb.edu.cn电话：+86-10-62332875

      本系统由 北京仁和汇智信息技术有限公司 开发    百度统计