Reference : Composition and phases in laser welded Al-Cu joints by synchrotron x-ray microdiffraction
Scientific journals : Article
Engineering, computing & technology : Materials science & engineering
http://hdl.handle.net/10993/36534
Composition and phases in laser welded Al-Cu joints by synchrotron x-ray microdiffraction
English
Schmalen, Pascal Guy mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit >]
Plapper, Peter mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit >]
Peral Alonso, Inmaculada mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit >]
Titov, Ivan mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit >]
Vallcorba, Oriol mailto [ALBA Synchrotron]
Rius, Jordi mailto [Institut de Ciencia de Materials de Barcelona]
Sep-2018
Proceedings of 10th CIRP Conference on Photonic Technologies [LANE 2018]
Yes
International
[en] Laser ; welding ; microdiffraction ; Al ; Cu ; intermetallic
[en] This paper presents the characterization of the intermetallic phases of laser-welded Al-Cu joints by synchrotron trough-the-substrate microdiffraction combined with SEM/EDX and etched/non-etched optical micrographs. Transmission microdiffraction offers the spatial resolution and beam flux necessary to study the intermetallic phases, which in conjunction with the excellent contrast of etched micrographs, rendered possible the phase identification. It was found that the major phases are Al2Cu (θ), Al4Cu9 (γ1) and AlCu (η2) were formed. The Al3Cu4 (ζ1) and δ phases where formed in less amount and found to be the primary cause for cracks inside the weld seam and therefore for the failure of the joint.
http://hdl.handle.net/10993/36534
FnR ; FNR10155468 > Pascal Guy Schmalen > CoLaWeDi > Closed-loop control of the laser-braze welding process of dissimilar materials > 01/09/2015 > 14/03/2019 > 2015

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