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Metal Science and Heat Treatment

Erschienen in:

19.04.2018

Assessment of the Sensitivity of Welded Joints of Al –Mg – Si Alloys to Liquation Cracks Under Laser Welding

verfasst von: S. Yu. Ivanov, V. A. Karkhin, V. G. Mikhailov, J. Martikainen, E. Hiltunen

Erschienen in: Metal Science and Heat Treatment | Ausgabe 11-12/2018

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Abstract

The microstructure and the distribution of chemical elements in laser-welded joints of Al – Mg – Si alloy 6005-T6 are studied. Segregations of chemical elements are detected over grain boundaries in the heat-affected zones of the welded joints. The joints fracture by the intergrain mechanism. A Gleeble 3800 device is used to determine the temperature dependences of the mechanical properties of the alloy with allowance for the special features of the welding cycle. Amethod for evaluating the sensitivity of welded joints of aluminum alloys to formation of liquation cracks with allowance for the local properties of the metal, the welding conditions, and the rigidity of the construction is suggested.

Vorheriger Artikel Crack Resistance of Welded Joints of Pipe Steels of Strength Class K60 of Different Alloying Systems

Nächster Artikel Analysis of the Surface of Deposited Copper After Electroerosion Treatment

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Titel: Assessment of the Sensitivity of Welded Joints of Al –Mg – Si Alloys to Liquation Cracks Under Laser Welding
verfasst von: S. Yu. Ivanov
V. A. Karkhin
V. G. Mikhailov
J. Martikainen
E. Hiltunen
Publikationsdatum: 19.04.2018
Verlag: Springer US
Erschienen in: Metal Science and Heat Treatment / Ausgabe 11-12/2018
Print ISSN: 0026-0673
Elektronische ISSN: 1573-8973
DOI: https://doi.org/10.1007/s11041-018-0225-2

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