A. G. Malikov, A. M. Orishich, I. E. Vitoshkin, E. V. Karpov, A. I. Ancharov, “Laser welding of dissimilar materials based on the VT20 titanium alloy and V-1461 aluminum alloy”, Prikl. Mekh. Tekh. Fiz., 2020, Volume 61, Issue 2,Pages <nobr>175

This article is cited in 7 papers

Laser welding of dissimilar materials based on the VT20 titanium alloy and V-1461 aluminum alloy

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

Abstract: This paper describes results of an experimental study of strength characteristics and a microstructure of a permanent joint of dissimilar materials (VT20 titanium alloy and V-1461 aluminum alloy), obtained by laser butt welding. Optical and electron microscopy, the results of X-ray spectral and phase analysis, and the transmission diffraction method with the help of synchrotron radiation are all used to investigate the properties of a welded joint. It is shown that the displacement of laser radiation relative to the contact surface of dissimilar materials significantly changes the microstructure and phase composition of the intermetallic interlayer formed between the materials welded, thereby affecting the strength of dissimilar welded joints.

Keywords: laser welding, dissimilar materials, titanium alloy, aluminum-lithium alloy, strength, structural-phase composition.

UDC: 621.791.725

Received: 28.10.2019
Revised: 28.10.2019
Accepted: 28.10.2019

DOI: 10.15372/PMTF20200218