Issue 71

E.A. Chechulina et alii, Fracture and Structural Integrity, 71 (2025) 223-238; DOI: 10.3221/IGF-ESIS.71.16

The influence of plastic flow localization on the surface morphology of aluminum alloy specimens subjected to complex loading

Evgeniia A. Chechulina Ural Research Institute of Composite Materials, Perm, Russia zhenya-chechulina@yandex.ru, https://orcid.org/0000-0003-4834-7911 Vladimir A. Oborin Institute of Continuous Media Mechanics, Perm, Russia oborin@icmm.ru, http://orcid.org/0000-0003-2836-2073 Dmitriy S. Gribov Perm National Research Polytechnic University, Perm, Russia gribovds@pstu.ru, http://orcid.org/0000-0001-6838-3122

Citation: Chechulina E.A., Gribov D.S., Oborin V.A., The influence of plastic flow localization on the surface morphology of aluminum alloy specimens subjected to complex loading, Fracture and Structural Integrity, 71 (2024) 223-238.

Received: 15.09.2024 Accepted: 13.11.2024 Published: 19.11.2024 Issue: 01.2025

Copyright: © 2024 This is an open access article under the terms of the CC-BY 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

K EYWORDS . Portevin–Le Chatelier effect, Al-Mg alloys, Complex (nonproportional) loading, Surface morphology, Wavelet analysis, Profilometric analysis.

I NTRODUCTION n important characteristic determining the quality of products obtained by plastic deformation methods, especially in finishing operations, is the roughness of their surface. It is known that in certain ranges of temperatures and deformation rates, the Portevin-Le Chatelier effect (and further in the text – PLC) occurs in almost all alloys, A

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