A. G. Malikov, A. M. Orishich, I. E. Vitoshkin, E. V. Karpov, A. I. Ancharov, “Laser welding of disparate materials based on thermally hardened aluminum alloys”, Prikl. Mekh. Tekh. Fiz., 2021, Volume 62, Issue 5,Pages <nobr>161

This article is cited in 6 papers

Laser welding of disparate materials based on thermally hardened aluminum alloys

A. G. Malikov^a, A. M. Orishich^a, I. E. Vitoshkin^a, E. V. Karpov^b, A. I. Ancharov^cd

^a Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch of the Russian Academy of Sciences, 630090, Novosibirsk, Russia
^b Lavrentyev Institute of Hydrodynamics of Siberian Branch of the Russian Academy of Sciences, 630090, Novosibirsk, Russia
^c Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch of the Russian Academy of Sciences, 630128, Novosibirsk, Russia
^d G I. Budker Institute of Nuclear Physics, Siberian Branch of the Russian Academy of Sciences, 630090, Novosibirsk, Russia

Abstract: Results of an experimental study of the strength characteristics and structural-phase composition of a nondetachable connection of disparate materials based on thermally hardened aluminum alloys D16T of the Al-4,4Cu-1,5Mg system and 1420 of the Al-5,2Mg-2,1Li system obtained by butt-end laser welding are reported. The phase composition of the welded joint is studied with the use of synchrotron radiation by the method of transmission diffraction. The welded joint microstructure is considered by optical microscopy. It is demonstrated that heat treatment (quenching and artificial aging) allows one to improve the chemical properties of the welded joint.

Keywords: laser welding, disparate materials, aluminum–lithium alloy, strength, structural-phase composition.

UDC: 621.791.725

Received: 25.06.2021
Revised: 25.06.2021
Accepted: 28.06.2021

DOI: 10.15372/PMTF20210516