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Characterization of Joints Between Aluminum and Galvanized Steel Sheets

Abstract : Sound joints between an AA6016 aluminum sheet of 1.2-mm thickness and a low-carbon galvanized steel sheet of 0.77-mm thickness are obtained using the laser pseudo-brazing method. A zinc-based aluminum alloy is used as a filler wire with optimized process parameters for laser pseudo-brazing. Metallurgical investigation of the joint is carried out using a scanning electron microscope and energy-dispersive X-ray analysis. Joints produced using Al-Zn filler wire showed a moderate strength and quality with a layer containing principally Fe2Al5Zn (x) type intermetallics of similar to 10-mu m thickness. Failure in the heat-affected zone of aluminum is found to be dominative, while in some cases, fracture along the interface between the intermetallic layer and the steel sheet is observed.
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Contributor : Yannick Champion <>
Submitted on : Tuesday, January 21, 2014 - 11:37:14 AM
Last modification on : Thursday, November 19, 2020 - 3:54:15 PM

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R. Shabadi, M. Suery, A. Deschamps. Characterization of Joints Between Aluminum and Galvanized Steel Sheets. Metallurgical and Materials Transactions A, Springer Verlag/ASM International, 2013, 44A (6), pp.2672-2682. ⟨10.1007/s11661-012-1605-7⟩. ⟨hal-00933876⟩



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