Investigation of the features of the decomposition of a solid solution during aging of alloys of the Al–Mg–Si–Cu system

Sbitneva S.V., Lukinа E.A., Zaysev D.V.
UDC
669.715
DOI
10.18577/2307-6046-2021-0-12-14-20
Article PDF (Russian) (788.4 KB)
How to cite
Sbitneva S.V., Lukinа E.A., Zaysev D.V. Investigation of the features of the decomposition of a solid solution during aging of alloys of the Al–Mg–Si–Cu system // Proceedings of VIAM. 2021. No. 12. DOI: 10.18577/2307-6046-2021-0-12-14-20. URL: https://test.viam.ru/en/journal/2021/12/2
Abstract

In this work, the samples of alloy 6013 of the Al–Mg–Si–Cu system after low-temperature thermomechanical treatment (LTMT) according to the scheme: quenching → aging → deformation → aging were studied by dark-field methods of transmission electron microscopy. The analysis of the structure of precipitates of hardening phases and dislocation structure in the volume of grains after different degrees of cold hardening of LHMT is carried out. It is shown that LHMT affects the formation of the structure of hardening precipitates, contributing to both heterogeneous nucleation at dislocations and homogeneous nucleation in the bulk of grains, due to the intensification of diffusion processes.

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