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 10
Oct.  2017
Turn off MathJax
目录
数据统计

分享

计量
  • 文章访问数:  506
  • HTML全文浏览量:  84
  • PDF下载量:  10
  • 被引次数: 0
文章导航 >  矿物冶金与材料学报（英文）  > 2017  >  24(10): 1169-1176
Dong Wu, Jun Shen, Meng-bing Zhou, Liang Cheng, and Jia-xing Sang, Development of liquid-nitrogen-cooling friction stir spot welding for AZ31 magnesium alloy joints, Int. J. Miner. Metall. Mater., 24(2017), No. 10, pp. 1169-1176. https://doi.org/10.1007/s12613-017-1507-1
Cite this article as:
Dong Wu, Jun Shen, Meng-bing Zhou, Liang Cheng, and Jia-xing Sang, Development of liquid-nitrogen-cooling friction stir spot welding for AZ31 magnesium alloy joints, Int. J. Miner. Metall. Mater., 24(2017), No. 10, pp. 1169-1176. https://doi.org/10.1007/s12613-017-1507-1
shu
引用本文 PDF XML SpringerLink
研究论文

Development of liquid-nitrogen-cooling friction stir spot welding for AZ31 magnesium alloy joints

  • State Key Laboratory of Mechanical Transmission, College of Materials Science & Engineering, Chongqing University, Chongqing 400044, China

  • 通讯作者:

    Jun Shen    E-mail: shenjun@cqu.edu.cn

  • A liquid-nitrogen-cooling friction stir spot welding (C-FSSW) technology was developed for welding AZ31 magnesium alloy sheets. The liquid-nitrogen cooling degraded the deformability of the welded materials such that the width of interfacial cracks increased with increasing cooling time. The grain size of the stirred zone (SZ) and the heat-affected zone (HAZ) of the C-FSSW-welded joints decreased, whereas that of the thermomechanically affected zone (TMAZ) increased with increasing cooling time. The maximum tensile shear load of the C-FSSW-welded joints welded with a cooling time of 5 or 7 s was larger than that of the friction stir spot welding (FSSW)-welded joint, and the tensile shear load decreased with increasing cooling time. The microhardness of the C-FSSW-welded joints was greater than that of the FSSW-welded joint. Moreover, the microhardness of the SZ and the HAZ of the C-FSSW-welded joints increased, whereas that of the TMAZ decreased, with increasing cooling time.
    • Research Article

    Development of liquid-nitrogen-cooling friction stir spot welding for AZ31 magnesium alloy joints

    + Author Affiliations
      Abstract
    • A liquid-nitrogen-cooling friction stir spot welding (C-FSSW) technology was developed for welding AZ31 magnesium alloy sheets. The liquid-nitrogen cooling degraded the deformability of the welded materials such that the width of interfacial cracks increased with increasing cooling time. The grain size of the stirred zone (SZ) and the heat-affected zone (HAZ) of the C-FSSW-welded joints decreased, whereas that of the thermomechanically affected zone (TMAZ) increased with increasing cooling time. The maximum tensile shear load of the C-FSSW-welded joints welded with a cooling time of 5 or 7 s was larger than that of the friction stir spot welding (FSSW)-welded joint, and the tensile shear load decreased with increasing cooling time. The microhardness of the C-FSSW-welded joints was greater than that of the FSSW-welded joint. Moreover, the microhardness of the SZ and the HAZ of the C-FSSW-welded joints increased, whereas that of the TMAZ decreased, with increasing cooling time.
      • FullText(HTML)
    • loading
      • Supplements(0)
      • References(21)
    • [1]
      D. Mitlin, V. Radmilovic, T. Pan, J. Chen, Z. Feng, and M.L. Santella, Structure-properties relations in spot friction welded (also known as friction stir spot welded)6111 aluminum, Mater. Sci. Eng. A, 441(2006), No. 1-2, p. 79.
      [2]
      J. Shen, D. Min, and D. Wang, Effects of heating process on the microstructures and tensile properties of friction stir spot welded AZ31 magnesium alloy plates, Mater. Des., 32(2011), No. 10, p. 5033.
      [3]
      J. Shen, L. Wen, X. Luo, N. Xu, D. Wang, and M. Liu, Development of novel heating tool friction stir spot welding (HT-FSSW) for AZ31 magnesium alloy, Sci. Technol. Weld. Joining, 19(2014), No. 5, p. 369.
      [4]
      Z.H. Zhang, X.Q. Yang, J.L. Zhang, G. Zhou, X.D. Xu, and B.L. Zou, Effect of welding parameters on microstructure and mechanical properties of friction stir spot welded 5052 aluminum alloy, Mater. Des., 32(2011), No. 8-9, p. 4461.
      [5]
      Y. Tozaki, Y. Uematsu, and K. Tokaji, Effect of tool geometry on microstructure and static strength in friction stir spot welded aluminium alloys, Int. J. Mach. Tools Manuf., 47(2007), p. 2230.
      [6]
      D.M. Rodrigues, A. Loureiro, C. Leitao, R.M. Leal, B.M. Chaparro, and P. Vilaça, Influence of friction stir welding parameters on the microstructural and mechanical properties of AA 6016-T4 thin welds, Mater. Des., 30(2008), No. 6, p. 1913.
      [7]
      Y.C. Chen and K. Nakata, Effect of tool geometry on microstructure and mechanical properties of friction stir lap welded magnesium alloy and steel, Mater. Des., 30(2009), No. 9, p. 3913.
      [8]
      J. Shen, D. Wang, and K. Liu, Effects of pin diameter on microstructures and mechanical properties of friction stir spot welded AZ31B magnesium alloy joints, Sci. Technol. Weld. Joining, 17(2012), No. 5, p. 357.
      [9]
      Y.K. Yang, H.G. Dong, H.B. Cao, Y.A. Chang, and S.D. Kou, Liquation of Mg alloys in friction stir spot welding, Weld. J., 87(2008), p. 167-s.
      [10]
      Y.F. Sun, J.M. Shen, Y. Morisada, and H. Fujii, Spot friction stir welding of low carbon steel plates preheated by high frequency induction, Mater. Des., 54(2014), p. 450.
      [11]
      T.G. Santos, R.M. Miranda, and P. Vilaça, Friction stir welding assisted by electrical joule effect, Key Eng. Mater., 611-612(2014), p. 2127.
      [12]
      T.G. Santos, N. Lopes, M. Machado, P. Vilaça, and R.M. Miranda, Surface reinforcement of AA5083-H111 by friction stir processing assisted by electrical current, J. Mater. Process. Technol., 216(2015), p. 375.
      [13]
      J. Luo, W. Chen, and G. Fu, Hybrid-heat effects on electrical-current aided friction stir welding of steel, and Al and Mg alloys, J. Mater. Process. Technol., 214(2014), No. 12, p. 3002.
      [14]
      K.V. Jata and S.L. Semiatin, Continuous dynamic recrystallization during friction stir welding of high strength aluminum alloys, Scripta Mater., 43(2000), No. 8, p. 743.
      [15]
      Y.S. Sato, H. Kokawa, M. Enomoto, and S. Jogan, Microstructural evolution of 6063 aluminum during friction-stir welding, Metall. Mater. Trans. A, 30(1999), No. 9, p. 2429.
      [16]
      B. Heinz and B. Skrotzki, Characterization of a friction-stir-welded aluminum alloy 6013, Metall. Mater. Trans. B, 33(2002), No. 3, p. 489.
      [17]
      K.V. Jata, K.K. Sankaran, and J.J. Ruschau, Friction-stir welding effects on microstructure and fatigue of aluminum alloy 7050-T7451, Metall. Mater. Trans. A, 31(2012), No. 9, p. 2181.
      [18]
      J. Shen, L.B. Wen, Y. Li, and D. Min, Effects of welding speed on the microstructures and mechanical properties of laser welded AZ61 magnesium alloy joints, Mater. Sci. Eng. A, 578(2013), p. 303.
      [19]
      Y.H. Yin, N. Sun, T.H. North, and S.S. Hu, Hook formation and mechanical properties in AZ31 friction stir spot welds, J. Mater. Process. Technol., 210(2010), No. 14, p. 2062.
      [20]
      H. Badarinarayan, Y. Shi, X. Li, and K. Okamoto, Effect of tool geometry on hook formation and static strength of friction stir spot welded aluminum 5754-O sheets, Int. J. Mach. Tools Manuf., 49(2009), No. 11, p. 814.
      [21]
      S. Benavides, Y. Li, L.E. Murr, D. Brown, and J.C. Mcclure, Low-temperature friction-stir welding of 2024 aluminum, Scripta Mater., 41(1999), No. 8, p. 809.
      • 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