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Metallurgist

Erschienen in:

05.09.2024

Laser welding of aluminum-calcium alloys based on ((Al) + Al₄(Ca, La)) eutectic

verfasst von: N. V. Letyagin, T. K. Akopyan, P. A. Palkin, S. O. Cherkasov, A. B. Lyukhter, I. S. Pechnikov

Erschienen in: Metallurgist | Ausgabe 5/2024

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Abstract

The influence of laser welding modes on the structure and properties of butt joints formed for the models of cast sample—cast sample, wrought sample—wrought sample, as well as a hybrid joint of a cast and a wrought sample of Al3Ca0.5La1Mn aluminum-calcium alloy, was studied. The influence of welding parameters on the quality of the weld was evaluated using structural and mechanical tests. The optimal welding parameters were identified as follows: laser power of 1400–1600 W, welding speed of 20 mm/s, focal length of 193 mm, and argon flow rate supplied to the welding zone of 15 L/min. This resulted in the formation of a high-quality welded joint with low porosity and the absence of cracks. The variation in the mass fraction of alloying elements in the process of laser welding of aluminum-calcium alloys was revealed. Under optimal laser welding modes, calcium evaporation in the melting zone is approximately 6.5–10.3%. The obtained joints exhibit a factor of safety of 0.71–0.83 of the ultimate strength of the base metal.

Vorheriger Artikel Study of the effect of calcium on structure, physicomechanical and technological properties of deformable alloy Al-3%Mg-0.8%Mn

Nächster Artikel Effect of retrograssion and re-aging on microstructure and properties of Al–Zn–Mg–Cu–Zr–Er alloy

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Titel: Laser welding of aluminum-calcium alloys based on ((Al) + Al4(Ca, La)) eutectic
verfasst von: N. V. Letyagin
T. K. Akopyan
P. A. Palkin
S. O. Cherkasov
A. B. Lyukhter
I. S. Pechnikov
Publikationsdatum: 05.09.2024
Verlag: Springer US
Erschienen in: Metallurgist / Ausgabe 5/2024
Print ISSN: 0026-0894
Elektronische ISSN: 1573-8892
DOI: https://doi.org/10.1007/s11015-024-01775-6

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