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Evolution of the Phase Composition of High-Strength Laser Welded Joints of Aluminum-Lithium Alloys. 1. Features of the Structural and Phase Composition Full article

Journal Metal Science and Heat Treatment
ISSN: 0026-0673
Output data Year: 2025, Volume: 67, Number: 1-2, DOI: 10.1007/s11041-025-01138-1
Tags laser welding, aluminum-lithium alloys, welded joints, synchrotron radiation, phase composition, strength properties
Authors Malikov A.G. 1 , Mironova M.I. 1,5 , Vitoshkin I.E. 1 , Beglyarov E.S. 1 , Karpov E.V. 2 , Zav’yalov A.P. 1,3 , Kuper K.E. 1,4
Affiliations
1 Khristianovich Institute of Theoretical and Applied Mechanics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
2 Lavrentyev Institute of Hydrodynamics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
3 Synchrotron Radiation Facility SKIF, Boreskov Institute of Catalysis of the Siberian Branch of the Russian Academy of Sciences, Kol’tsovo, Russia
4 Budker Institute of Nuclear Physics of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
5 Laboratory of Functional Diagnostics of Low-Dimensional Structures, Division of ATIC FF, Novosibirsk State University, Novosibirsk, Russia

Funding (1)

1 Russian Science Foundation 23-79-00037

Abstract: The phase composition of laser welded joints of heat-hardenable aluminum–lithium alloys of the 3rd generation of grades V-1461 and V-1469 is studied. The phase composition of the alloys in the initial state and in laser welded condition is determined using synchrotron radiation and high-resolution transmission electron microscopy. It is shown that the weld structure is significantly affected by the thermal mode of the laser welding and by the variation of the temperature of the metal during the welding. The formation of the dendritic structure is shown to depend on the relation between the crystallization parameter GR and the cooling rate dTdt = GR. The energy parameters of the fiber laser welding are optimized, i.e., the welding speed, the radiation power, the location of the focal spot.
Cite: Malikov A.G. , Mironova M.I. , Vitoshkin I.E. , Beglyarov E.S. , Karpov E.V. , Zav’yalov A.P. , Kuper K.E.
Evolution of the Phase Composition of High-Strength Laser Welded Joints of Aluminum-Lithium Alloys. 1. Features of the Structural and Phase Composition
Metal Science and Heat Treatment. 2025. V.67. N1-2. DOI: 10.1007/s11041-025-01138-1 WOS Scopus OpenAlex publication_identifier_short.sciact_skif_identifier_type
Identifiers:
Web of science: WOS:001537854800001
Scopus: 2-s2.0-105012165980
OpenAlex: W4412903606
publication_identifier.sciact_skif_identifier_type: 4051
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