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Microstructure and Properties of Lap Joint Between Aluminum Alloy and Galvanized Steel by CMT

  • Song Niu
  • Su Chen
  • Honggang Dong
  • Dongsheng Zhao
  • Xiaosheng Zhang
  • Xin Guo
  • Guoqiang Wang
Article

Abstract

Lap joining of 1-mm-thick Novelist AC 170 PX aluminum alloy to 1.2-mm-thick ST06 Z galvanized steel sheets for automotive applications was conducted by cold metal transfer advanced welding process with ER4043 and ER4047 filler wires. Under the optimized welding parameters with ER4043 filler wire, the tensile shear strength of joint was 189 MPa, reaching 89% of the aluminum alloy base metal. Microstructure and elemental distribution were characterized by optical metalloscope and electron probe microanalysis. The lap joints with ER4043 filler wire had smaller wetting angle and longer bonded line length with better wettability than with ER4047 filler wire during welding with same parameters. The needle-like Al-Fe-Si intermetallic compounds (IMCs) were spalled into the weld and brought negative effect to the tensile strength of joints. With increasing welding current, the needle-like IMCs grew longer and spread further into the weld, which would deteriorate the tensile shear strength.

Keywords

aluminum alloy cold metal transfer dissimilar metal joining galvanized steel 

Notes

Acknowledgments

This work was financially supported by the National Natural Science Foundation of China (Grant Nos. 51374048 and 50904012), the Fundamental Research Funds for the Central Universities (DUT13ZD209), and Science and Technology Foundation of Liaoning, China (No. 201301002).

References

  1. 1.
    R. Cao, Q. Huang, J.H. Chen, and P. Wang, Cold Metal Transfer Spot Plug Welding of AA6061-T6-to-Galvanized Steel for Automotive Applications, J. Alloy. Compd, 2014, 585, p 622–632CrossRefGoogle Scholar
  2. 2.
    W.S. Miller, L. Zhuang, J. Bottema, A.J. Wittebrood, P. De Smet, A. Haszler, and A. Vieregge, Recent Development in Aluminium Alloys for the Automotive Industry, Mater. Sci. Eng. A, 2000, 280(1), p 37–49CrossRefGoogle Scholar
  3. 3.
    H. Dong, L. Yang, C. Dong, and S. Kou, Arc Joining of Aluminum Alloy to Stainless Steel with Flux-Cored Zn-Based Filler Metal, Mater. Sci. Eng. A, 2010, 527(26), p 7151–7154CrossRefGoogle Scholar
  4. 4.
    S.B. Lin, J.L. Song, C.L. Yang, C.L. Fan, and D.W. Zhang, Brazability of Dissimilar Metals Tungsten Inert Gas Butt Welding-Brazing Between Aluminum Alloy and Stainless Steel with Al-Cu Filler Metal, Mater. Des., 2010, 31(5), p 2637–2642CrossRefGoogle Scholar
  5. 5.
    S. Liu, A. Suzumura, T. Ikeshoji, and T. Yamazaki, Brazing of Stainless Steel to Various Aluminum Alloys in Air, JSME Int J. Ser. A, 2005, 48(4), p 420–425CrossRefGoogle Scholar
  6. 6.
    H. Das, S.S. Jana, T.K. Pal, and A. De, Numerical and Experimental Investigation on Friction Stir Lap Welding of Aluminium to Steel, Sci. Technol. Weld. Joi., 2014, 19(1), p 69–75CrossRefGoogle Scholar
  7. 7.
    H. Das, S. Basak, G. Das, and T.K. Pal, Influence of Energy Induced from Processing Parameters on the Mechanical Properties of Friction Stir Welded Lap Joint of Aluminum to Coated Steel Sheet, Int. J. Adv. Manuf. Technol., 2013, 64(9–12), p 1653–1661CrossRefGoogle Scholar
  8. 8.
    T. Ogura, Y. Saito, T. Nishida, H. Nishida, T. Yoshida, N. Omichi, M. Fujimoto, and A. Hirose, Partitioning Evaluation of Mechanical Properties and the Interfacial Microstructure in a Friction Stir Welded Aluminum Alloy/Stainless Steel Lap Joint, Scr. Mater., 2012, 66(8), p 531–534CrossRefGoogle Scholar
  9. 9.
    W. Lee, M. Schmuecker, U.A. Mercardo, G. Biallas, and S. Jung, Interfacial Reaction in Steel-Aluminum Joints Made by Friction Stir Welding, Scr. Mater., 2006, 55(4), p 355–358CrossRefGoogle Scholar
  10. 10.
    H. Lei, Y. Li, B.E. Carlson, and Z. Lin, Cold Metal Transfer Spot Joining of AA6061-T6 to Galvanized DP590 Under Different Modes, J. Manuf. Sci. Eng., 2014, 137, p 051028CrossRefGoogle Scholar
  11. 11.
    J. Lin, N. Ma, Y. Lei, and H. Murakawa, Shear Strength of CMT Brazed Lap Joints Between Aluminum and Zinc-Coated Steel, J. Mater. Process. Technol., 2013, 213(8), p 1303–1310CrossRefGoogle Scholar
  12. 12.
    M. Kang and C. Kim, Joining Al 5052 Alloy to Aluminized Steel Sheet Using Cold Metal Transfer Process, Mater. Des., 2015, 81, p 95–103CrossRefGoogle Scholar
  13. 13.
    S. Yang, J. Zhang, J. Lian, and Y. Lei, Welding of Aluminum Alloy to Zinc Coated Steel by Cold Metal Transfer, Mater. Des., 2013, 49, p 602–612CrossRefGoogle Scholar
  14. 14.
    R. Cao, G. Yu, J.H. Chen, and P. Wang, Cold Metal Transfer Joining Aluminum Alloys-to-Galvanized Mild Steel, J. Mater. Process. Technol., 2013, 213(10), p 1753–1763CrossRefGoogle Scholar
  15. 15.
    R. Cao, Q. Huang, J.H. Chen, and P. Wang, Cold Metal Transfer Spot Plug Welding of AA6061-T6-to-Galvanized Steel for Automotive Applications, J. Alloy. Compd., 2014, 585, p 622–632CrossRefGoogle Scholar
  16. 16.
    J.L. Song, S.B. Lin, C.L. Yang, and C.L. Fan, Effects of Si Additions on Intermetallic Compound Layer of Aluminum-Steel TIG Welding-Brazing Joint, J. Alloy. Compd., 2009, 488(1), p 217–222CrossRefGoogle Scholar
  17. 17.
    S.P. Gupta, Intermetallic Compound Formation in Fe-Al-Si Ternary System: Part I, Mater. Charact., 2002, 49(4), p 269–291CrossRefGoogle Scholar
  18. 18.
    T. Maitra and S.P. Gupta, Intermetallic Compound Formation in Fe-Al-Si Ternary System: Part II, Mater. Charact., 2002, 49(4), p 293–311CrossRefGoogle Scholar
  19. 19.
    A. Bouayad, C. Gerometta, A. Belkebir, and A. Ambari, Kinetic Interactions Between Solid Iron and Molten Aluminium, Mater. Sci. Eng. A, 2003, 363(1–2), p 53–61CrossRefGoogle Scholar
  20. 20.
    K. Bouché, F. Barbier, and A. Coulet, Intermetallic Compound Layer Growth Between Solid Iron and Molten Aluminium, Mater. Sci. Eng. A, 1998, 249(1–2), p 167–175CrossRefGoogle Scholar
  21. 21.
    N. Tang, Y.P. Li, S. Kurosu, Y. Koizumi, H. Matsumoto, and A. Chiba, Interfacial Reactions of Solid Co and Solid Fe with Liquid Al, Corros. Sci, 2012, 60, p 32–37CrossRefGoogle Scholar
  22. 22.
    Y.S. Sato, H. Kokawa, M. Enomoto, and S. Jogan, Microstructural Evolution of 6063 Aluminum During Friction-Stir Welding, Metall. Mater. Trans. A, 1999, 30(9), p 2429–2437CrossRefGoogle Scholar

Copyright information

© ASM International 2016

Authors and Affiliations

  • Song Niu
    • 1
  • Su Chen
    • 1
  • Honggang Dong
    • 1
  • Dongsheng Zhao
    • 2
  • Xiaosheng Zhang
    • 3
  • Xin Guo
    • 3
  • Guoqiang Wang
    • 3
  1. 1.School of Materials Science and EngineeringDalian University of TechnologyDalianPeople’s Republic of China
  2. 2.School of Naval Architecture, Faculty of Vehicle Engineering and MechanicsDalian University of TechnologyDalianPeople’s Republic of China
  3. 3.Department of DevelopmentChina FAW Corporation LimitedChangchunPeople’s Republic of China

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