Welding in the World

, Volume 62, Issue 2, pp 427–433 | Cite as

Influence of alloy elements on microstructure and mechanical properties of Al/steel dissimilar joint by laser welding/brazing

  • Jin Yang
  • Zhishui Yu
  • Yulong Li
  • Hua Zhang
  • Wei Guo
  • Norman Zhou
Research Paper


The problem in dissimilar material joining (e.g., Al/steel) is the degradation of joint mechanical properties by formation of the hard and brittle interfacial intermetallic compounds. In the present study, in order to improve the joint mechanical properties, alloy elements Si and Zn are added in the form of Al-Si and Zn-Al filler metals, respectively. The effects of alloy elements on the joints are investigated in terms of interfacial microstructure and mechanical properties. The results have shown that element Si is able to suppress the growth of interfacial reaction layer, which leads to the improvement in the fracture load, while element Zn is capable of reducing the brittleness of reaction layer, and it consequently enhances the fracture load.


Al/steel dissimilar joint Microstructure Mechanical properties Laser welding/brazing 


  1. 1.
    Rendigs KH (1996) Aluminium structures used in aerospace-status and prospects. Mater Sci Forum 242:11–24.  https://doi.org/10.4028/www.scientific.net/msf.242.11
  2. 2.
    Chen S, Daehn GS, Vivek A (2016) Interfacial microstructures and mechanical property of vaporizing foil actuator welding of aluminum alloy to steel. Mater Sci Eng A 659:12–21.  https://doi.org/10.1016/j.msea.2016.02.040 CrossRefGoogle Scholar
  3. 3.
    Z. Zeng, J.P. Olive, M. Yang, D. Song and B. Peng(2017) Functional fatigue behaviour of NiTi-Cu dissimilar laser welds, 114, 282–287.  https://doi.org/10.1016/j.matdes.2016.11.023
  4. 4.
    Rathod MJ, Kutsuna M (2004) Joining of aluminum alloy 5052 and low-carbon steel by laser roll welding. Welding J 83:16s–24sGoogle Scholar
  5. 5.
    Torkamany MJ, Tahamtan S, Sabbaghzadeh J (2010) Dissimilar welding of carbon steel to 5754 aluminum alloy by Nd: YAG pulsed laser. Mater Des 31(1):458–465.  https://doi.org/10.1016/j.matdes.2009.05.046 CrossRefGoogle Scholar
  6. 6.
    Tran VX, Pan J (2010) Fatigue behavior of dissimilar spot friction welds in lap-shear and cross-tension specimens of aluminum and steel sheets. Int J Fatigue 32(7):1167–1179.  https://doi.org/10.1016/j.ijfatigue.2009.12.011 CrossRefGoogle Scholar
  7. 7.
    Acarer M, Demir B (2008) An investigation of mechanical and metallurgical properties of explosive welded aluminum–dual phase steel. Mater Lett 62(25):4158–4160.  https://doi.org/10.1016/j.matlet.2008.05.060 CrossRefGoogle Scholar
  8. 8.
    Kimura M, Ishii H, Kusaka M, Kaizu K, Fuji A (2009) Joining phenomena and fracture load of friction welded joint between pure aluminium and low carbon steel. Sci Technol Weld Join 14(5):388–395.  https://doi.org/10.1179/136217109X425856 CrossRefGoogle Scholar
  9. 9.
    Ding Y, Shen Z, Gerlich AP (2017) Refill friction stir spot welding of dissimilar aluminum alloy and AlSi coated stee. J Manuf Process 30:353–360.  https://doi.org/10.1016/j.jmapro.2017.10.006 CrossRefGoogle Scholar
  10. 10.
    Song JL, Lin SB, Yang CL, Fan CL (2009) Effects of Si additions on intermetallic compound layer of aluminum-steel TIG welding-brazing joint. J Alloys Compd 488(1):217–222.  https://doi.org/10.1016/j.jallcom.2009.08.084 CrossRefGoogle Scholar
  11. 11.
    Cao R, Yu G, Chen JH, Wang PC (2013) Cold metal transfer joining aluminum alloys-to-galvanized mild steel. J Mater Process Technol 213(10):1753–1763.  https://doi.org/10.1016/j.jmatprotec.2013.04.004 CrossRefGoogle Scholar
  12. 12.
    Saida K, Song W, Nishimoto K (2005) Diode laser brazing of aluminium alloy to steels with aluminium filler metal. Sci Technol Weld Join 10(2):227–235.  https://doi.org/10.1179/174329305X37060 CrossRefGoogle Scholar
  13. 13.
    Su Y, Hua X, Wu Y (2014) Quantitative characterization of porosity in Fe-Al dissimilar materials lap joint made by gas metal arc welding with different current modes. J Mater Process Technol 214(1):81–86.  https://doi.org/10.1016/j.jmatprotec.2013.08.002 CrossRefGoogle Scholar
  14. 14.
    Zhang HT, Feng JC, He P, Hackl H (2007) Interfacial microstructure and mechanical properties of aluminium-zinc-coated steel joints made by a modified metal inert gas welding-brazing process. Mater Charact 58(7):588–592.  https://doi.org/10.1016/j.matchar.2006.07.008 CrossRefGoogle Scholar
  15. 15.
    Li L, Xia H, Tan CW, Ma N (2018) Effect of groove shape on laser welding-brazing Al to steel. J Mater Process Technol 252:573–581.  https://doi.org/10.1016/j.jmatprotec.2017.10.025 CrossRefGoogle Scholar
  16. 16.
    Dong H, Yang L, Dong C, Kou S (2010) Arc joining of aluminum alloy to stainless steel with flux-cored Zn-based filler metal. Mater Sci Eng A 527(26):7151–7154.  https://doi.org/10.1016/j.msea.2010.07.092 CrossRefGoogle Scholar
  17. 17.
    Mathieu A, Shabadi R, Deschamps A, Suery M, Matteï S, Grevey D, Cicala E (2007) Dissimilar material joining using laser (aluminum to steel using zinc-based filler wire). Opt Laser Technol 39(3):652–661.  https://doi.org/10.1016/j.optlastec.2005.08.014 CrossRefGoogle Scholar
  18. 18.
    Sierra G, Peyre P, Beaume FD, Stuart D, Fras G (2008) Steel to aluminium braze welding by laser process with Al–12Si filler wire. Sci Technol Weld Join 13(5):430–437.  https://doi.org/10.1179/174329308X341852 CrossRefGoogle Scholar
  19. 19.
    Dharmendra C, Rao KP, Wilden J, Reich S (2011) Study on laser welding–brazing of zinc coated steel to aluminum alloy with a zinc based filler. Mater Sci Eng A 528(3):1497–1503.  https://doi.org/10.1016/j.msea.2010.10.050 CrossRefGoogle Scholar
  20. 20.
    Lin SB, Song JL, Yang CL, Fan CL, Zhang DW (2010) Brazability of dissimilar metals tungsten inert gas butt welding-brazing between aluminum alloy and stainless steel with Al-Cu filler metal. Mater Des 31(5):2637–2642.  https://doi.org/10.1016/j.matdes.2009.12.005 CrossRefGoogle Scholar
  21. 21.
    Dong H, Hu W, Duan Y, Wang X, Dong C (2012) Dissimilar metal joining of aluminum alloy to galvanized steel with Al-Si, Al-Cu, Al-Si-Cu and Zn-Al filler wires. J Mater Process Technol 212(2):458–464.  https://doi.org/10.1016/j.jmatprotec.2011.10.009 CrossRefGoogle Scholar
  22. 22.
    Su Y, Hua X, Wu Y (2014) Influence of alloy elements on microstructure and mechanical property of aluminum–steel lap joint made by gas metal arc welding. J Mater Process Technol 214(4):750–755.  https://doi.org/10.1016/j.jmatprotec.2013.11.022 CrossRefGoogle Scholar
  23. 23.
    Yang J, Li YL, Zhang H, Guo W, Weckman D, Zhou N (2015) Dissimilar laser welding/brazing of 5754 aluminum alloy to dp 980 steel: mechanical properties and interfacial microstructure. Metall Mater Trans A 46(11):5149–5157.  https://doi.org/10.1007/s11661-015-3079-x CrossRefGoogle Scholar
  24. 24.
    Chen SH, Huang JH, Yang DD, Ma K, Zhang H (2012) The effect of Ni foil interlayer on laser key-hole welding of stainless steel to aluminum alloy. Trans China Weld Inst 33:9–12Google Scholar
  25. 25.
    Yang J, Li YL, Zhang H, Guo W, Zhou Y (2015) Control of interfacial intermetallic compounds in Fe-Al joining by Zn addition. Mater Sci Eng A 645:323–327.  https://doi.org/10.1016/j.msea.2015.08.036 CrossRefGoogle Scholar

Copyright information

© International Institute of Welding 2017

Authors and Affiliations

  1. 1.Department of Materials EngineeringShanghai University of Engineering ScienceShanghaiChina
  2. 2.Key Laboratory of Robot and Welding Automation of Jiangxi ProvinceNanchang UniversityNanchangChina
  3. 3.School of Mechanical Engineering and AutomationBeihang UniversityBeijingChina
  4. 4.Center for Advanced Materials JoiningUniversity of WaterlooWaterlooCanada

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