Journal of Siberian Federal University. Mathematics & Physics / Microstructural and Phase Transformations in Aluminium-Lithium Alloys after Laser Welding

Full text (.pdf)
Issue
Journal of Siberian Federal University. Mathematics & Physics. 2024 17 (1)
Authors
Malikov, Aleksander G.; Vitoshki, Igor E.; Karpov, Evgeny V.; Kuper, Konstantin E.; Mironova, Mariya I.; Zavialov, Alexey P.
Contact information
Malikov, Aleksander G.: Khristianovich Institute of Theoretical and Applied Mechanics SB RAS Novosibirsk, Russian Federation; ; Vitoshki, Igor E.: Khristianovich Institute of Theoretical and Applied Mechanics SB RAS Novosibirsk, Russian Federation; ; Karpov, Evgeny V.: Khristianovich Institute of Theoretical and Applied Mechanics SB RAS Lavrentyev Institute of Hydrodynamics SB RAS Novosibirsk, Russian Federation; ; Kuper, Konstantin E.: Khristianovich Institute of Theoretical and Applied Mechanics SB RAS Budker Institute of Nuclear Physics of SB RAS Novosibirsk, Russian Federation; ; Mironova, Mariya I.: Khristianovich Institute of Theoretical and Applied Mechanics SB RAS Novosibirsk State University Novosibirsk, Russian Federation; ; Zavialov, Alexey P.: Khristianovich Institute of Theoretical and Applied Mechanics SB RAS Budker Institute of Nuclear Physics of SB RAS; Institute of Solid State Chemistry and Mechanochemistry SB RAS Novosibirsk, Russian Federation;
Keywords
laser welding; aluminum-lithium alloy; scanning electron microscopy; synchrotron radiation; x-ray diffractometry; mechanical properties
Abstract

The article shows the results of research on microstructural and phase transformation in aluminium-lithium alloys caused by laser welding followed by heat processing based on quenching and artificial aging. The microstructure and phase composition were examined with the help of synchrotron X-ray diffraction analysis and high-resolution electron microscopy. Two heat hardenable aluminium- lithium alloys used in the study are V-1461 and V-1469. The chosen alloys are notable for their high corrosion resistance, fracture and fatigue strength. V-1461 and V-1469 are third-generation alloys de- veloped in FSUE "VIAM" and covered by Russian Federation Patents. The research shows that the structural-phase composition of alloys changes in the result of laser welding

Pages
126–135
EDN
ZAGUGJ
Paper at repository of SibFU
https://elib.sfu-kras.ru/handle/2311/152463