Effect of Heat Treatment on Mechanical and Microstructural Properties of the Welded Joint of the Al–Mg–Li Alloy Obtained by Laser Welding

Effect of Heat Treatment on Mechanical and Microstructural Properties of the Welded Joint of the Al–Mg–Li Alloy Obtained by Laser Welding

Laser welding of the 1420 alloy of the Al–Mg–Li system is experimentally studied for the purpose of its optimization. Various modes of heat treatment of fixed joints obtained by means of laser welding are considered. Heat treatment modes that allow significant enhancement of the welded joint density...

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Veröffentlicht in:Journal of applied mechanics and technical physics 2018-05, Vol.59 (3), p.561-568
Hauptverfasser: Orishich, A. M., Malikov, A. G., Karpov, E. V., Pavlov, N. A., Mesenzova, I. S.
Format: Artikel
Sprache:eng
Schlagworte:
Aging (metallurgy)
Aluminum base alloys
Applications of Mathematics
Classical and Continuum Physics
Classical Mechanics
Elongation
Fluid- and Aerodynamics
Heat treating
Heat treatment
Laser beam welding
Lasers
Magnesium
Mathematical Modeling and Industrial Mathematics
Mechanical Engineering
Physics
Physics and Astronomy
Welded joints
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Zusammenfassung:Laser welding of the 1420 alloy of the Al–Mg–Li system is experimentally studied for the purpose of its optimization. Various modes of heat treatment of fixed joints obtained by means of laser welding are considered. Heat treatment modes that allow significant enhancement of the welded joint density as compared to the as-received alloy are chosen. The ultimate relative elongation of samples after ageing is found to decrease by a factor of 3.
ISSN:0021-8944
1573-8620
DOI:10.1134/S0021894418030215