Abstract
The variation of initial temperature of the base metal is conducted by a preheat treatment process, and its effect on metal insert gas (MIG) arc dissimilar metal brazing-fusion joint of aluminum alloy (Al) to steel plate is studied. Results show that though increasing the initial temperature of base metal, the joint appearance improves and wetting ability of liquid Al on steel becomes better. Three different zones are observed at brazed interface in all the joints. Zn-rich zone at weld toe and Zn-rich zone at weld root are characterized by the existence of Zn, while central zone is identified due to the formation of intermetallic compounds (IMCs) layer. The IMCs layer becomes thicker with the rise of initial temperature because of the increased peak temperature. At the initial temperature of 100 °C, the joint achieves the highest tensile strength of 180 MPa, which is equivalent to 80 % of that of Al alloy base metal and fractures at heat affected zone on Al side. The initial temperature of base metal influences the mechanical properties and fracture position of the joint through governing the thickness of IMCs layer and wetting ability of liquid Al alloy on the surface of steel.
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Li J, Li H, Wei H, Gao Y (2015) Effect of torch position and angle on welding quality and welding process stability in Pulse on Pulse MIG welding–brazing of aluminum alloy to stainless steel. The Int J Adv Manuf Technol. DOI 10.1007/s00170-015-7734-6.
Chen S, Zhai Z, Huang J., Zhao X, Xiong J. (2015). Interface microstructure and fracture behavior of single/dual-beam laser welded steel-Al dissimilar joint produced with copper interlayer. Int J Adv Manuf Technol. DOI 10.1007/s00170-015-7390-x.
Tan CW, Li LQ, Chen YB, Mei CX, Guo W (2013) Interfacial microstructure and fracture behavior of laser welded-brazed Mg alloys to Zn-coated steel. Int J Adv Manuf Technol 68:1179–1188
Ma H, Qin G, Wang L, Meng X, Chen L (2016) Effects of preheat treatment on microstructure evolution and properties of brazed-fusion welded joint of aluminum alloy to steel. Mater Des 90:330–339
Chen YB, Chen SH, Li LQ (2009) The effect of heat input on microstructure and mechanical property of Al/Ti joints by rectangular spot laser welding-brazing method. Int J Adv Manuf Technol 44:265–272
Chen J, Li J, Shalchi Amirkhiz B, Liang J, Zhang R (2014) Formation of nanometer scale intermetallic phase at interface of aluminum-to-steel spot joint by welding–brazing process. Mater Lett 137:120–123
Frank S (2015) Flux-free laser joining of aluminum and galvanized steel. J Mater Process Technol 222:365–72
Cao R, Yu G, Chen JH, Wang PC (2013) Cold metal transfer joining aluminum alloys-to-galvanized mild steel. J Mater Process Technol 213:1753–1763
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 212:458–464
Sascha F (2015) Flux-free laser joining of aluminum and galvanized steel. J Mater Process Technol 222:365–372
Thomy C, Vollertsen F (2012) Laser-MIG hybrid welding of aluminium to steel—effect of process parameters on joint properties. Welding in the World 56:124–132
Engelbrecht L, Meier O, Ostendorf A, Haferkamp H (2006) Influences on the mechanical properties of laser brazed hybrid joining of steel and aluminium. Mat-wiss u Werkstofftech 37:272–278
Gatzen M, Radel T, Thomy C, Vollertsen F (2014) Wetting ability behavior of eutectic Al–Si droplets on zinc coated steel substrates. J Mater Process Technol 214:123–131
Dilthey U, Brandenburg A, Reich F (2006) Investigation of the strength and quality of aluminium laser-mig-hybrid welded joints. Welding in the World 50:7–10
Ley FH, Campbell SW, Galloway AM, McPherson NA (2015) Effect of shielding gas parameters on weld metal thermal properties in gas metal arc welding. Int J Adv Manuf Technol 80:1213–1221
Qin G, Su Y, Meng X, Fu B (2015) Numerical simulation on MIG arc brazing-fusion welding of aluminum alloy to galvanized steel plate. Int J Adv Manuf Technol 78:1917–1925
Springer H, Kostka A, Payton EJ, Raabe D, Kaysser-Pyzalla A, Eggeler G (2011) On the formation and growth of intermetallic phases during interdiffusion between low-carbon steel and aluminum alloys. Acta Mater 59:1586–1600
Milani AM, Paidar M, Khodabandeh A, Nategh S. (2015) Influence of filler wire and wire feed speed on metallurgical and mechanical properties of MIG welding–brazing of automotive galvanized steel/5754 aluminum alloy in a lap joint configuration. Int J Adv Manuf Technol. DOI 10.1007/s00170-015-7505-4.
Qin G, Lei Z, Su Y, Fu B, Meng X, Lin S (2014) Large spot laser assisted GMA brazing–fusion welding of aluminum alloy to galvanized steel. J Mater Process Technol 214:2684–2692
Cai XY, Li H, Wei HL, Yang LJ, Gao Y (2014) Effect of laser on the welding process of short-circuiting transfer MIG welding of aluminum alloys. Int J Adv Manuf Technol 75:1829–1836
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Ma, H., Qin, G., Bai, X. et al. Effect of initial temperature on joint of aluminum alloy to galvanized steel welded by MIG arc brazing-fusion welding process. Int J Adv Manuf Technol 86, 3135–3143 (2016). https://doi.org/10.1007/s00170-016-8425-7
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DOI: https://doi.org/10.1007/s00170-016-8425-7