E. V. Karpov, A. G. Malikov, A. M. Orishich, B. D. Annin, “Influence of thermal treatment on the destruction of a weld of an Al–Cu–Li aircraft alloy at different temperatures”, Prikl. Mekh. Tekh. Fiz., 2020, Volume 61, Issue 1,Pages <nobr>91

This article is cited in 2 papers

Influence of thermal treatment on the destruction of a weld of an Al–Cu–Li aircraft alloy at different temperatures

E. V. Karpov^a, A. G. Malikov^b, A. M. Orishich^b, B. D. Annin^a

^a Lavrentyev Institute of Hydrodynamics of Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russia
^b Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, 630090, Russia

Abstract: Results of an experimental study of how temperature affects the destruction of laser welds of an Al–Cu–Li aircraft aluminum alloy are presented. A comparison is made of the deformation and fracture of welds in the initial state and after two-stage thermal treatment. It is shown that the mechanical characteristics of welded samples have values close to those of the initial alloy.

Keywords: laser welding, aluminum-lithium alloy, thermal treatment, plastic strain localization, temperature effect.

UDC: 621.791.725

Received: 15.02.2019
Revised: 25.07.2019
Accepted: 29.07.2019

DOI: 10.15372/PMTF20200109