Supplementary Data for Paper "Synchrotron X-ray imaging of the formation of transverse hot cracks during laser welding of a high-strength aluminum alloy and their dependence on local solidification conditions and process parameters"

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Michel, Johannes Peter, 2026, "Supplementary Data for Paper "Synchrotron X-ray imaging of the formation of transverse hot cracks during laser welding of a high-strength aluminum alloy and their dependence on local solidification conditions and process parameters"", https://doi.org/10.18419/DARUS-5782, DaRUS, V1
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Description

The supplementary videos present in-situ synchrotron X-ray recordings of transverse hot crack formation during laser welding of a high-strength aluminum alloy, showing crack initiation and propagation in the semi-solid region during solidification. The recordings enable direct observation of the relationship between the melt pool boundary and transverse crack formation and allow qualitative comparison of crack propagation behavior for different combinations of welding speed and laser power.

In addition to the videos, the supplementary material includes minimum and maximum projections of the processed streak images. These images were used to determine crack initiation positions, crack propagation rates, and local solidification rates along the melt pool boundary in the related publication. (2026-03-11)
Subject Engineering; Physics
Keyword Laser Welding, Transverse Hot Cracks, Synchrotron X-Ray Imaging, Aluminum Alloys, Solidification
Related Publication Is Supplement To: Johannes Michel, Michael Haas, Robert Steinhoff, Michael Sawannia, Christoph Spurk, Marc Hummel, Alexander Olowinsky, Felix Beckmann, Julian Moosmann, Christian Hagenlocher, Thomas Graf (2026). Synchrotron X-ray imaging of the formation of transverse hot cracks during laser welding of a high-strength aluminum alloy and their dependence on local solidification conditions and process parameters. Procedia CIRP 143, pp. 183-189.doi: 10.1016/j.procir.2026.07.040
Notes This work was funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) - 558591047. The presented investigations were carried out within the cooperation “Laser Meets Synchrotron” (www.laser-meets-synchrotron.de). The experimental setup and its operation were funded by the Deutsche Forschungsgemeinschaft e.V. (DFG, German Research Foundation) within the framework of the Collaborative Research Centre SFB1120-236616214 “Bauteilpräzision durch Beherrschung von Schmelze und Erstarrung in Produktionsprozessen”. We acknowledge Hereon (Geesthacht, Germany) and DESY (Hamburg, Germany), members of the Helmholtz Association HGF, for the provision of experimental facilities. The experiments were carried out at Beamline P07 of PETRA III as part of proposal BAG-20211050 and we would like to thank F. Beckmann, J. Moosmann and all people involved for their support.
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Curation Status History
StatusDateAssigner
2026-08-25 10:47:59Volkher Onuseit
Waiting for Feedback from Author2026-08-25 08:26:37Dataverse Admin
In Review by FoKUS2026-08-24 13:26:19Dataverse Admin
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