PSI - Issue 65

Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2024) 000–000 Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2024) 000–000

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Procedia Structural Integrity 65 (2024) 158–162

The 17th International Conference on MECHANICS, RESOURCE AND DIAGNOSTICS OF MATERIALS AND STRUCTURES (MRDMS 2023) Effect of electroplasticity studied for aluminum wires under tension A.Y. Morkina a,b , D.V. Tarov a , I.A. Yakushev c , P.S. Tatarinov c , E.A. Korznikova a,b,с , S.V. Dmitriev b,d,* a Youth Research Laboratory “Metals and Alloys under Extreme Impacts”, Ufa University of Science and Technology, 450076 Ufa, Russia b Institute for Metals Superplasticity Problems, Russian Academy of Sciences, 450001 Ufa, Russia The 17th International Conference on MECHANICS, RESOURCE AND DIAGNOSTICS OF MATERIALS AND STRUCTURES (MRDMS 2023) Effect of electroplasticity studied for aluminum wires under tension A.Y. Morkina a,b , D.V. Tarov a , I.A. Yakushev c , P.S. Tatarinov c , E.A. Korznikova a,b,с , S.V. Dmitriev b,d,* a Youth Research Laboratory “Metals and Alloys under Extreme Impacts”, Ufa University of Science and Technology, 450076 Ufa, Russia b Institute for Metals Superplasticity Problems, Russian Academy of Sciences, 450001 Ufa, Russia c Politechnical Institute (branch) of M.K. Ammosov North-Eastern Federal University, Mirny, 678179, Russia d Institute of Molecule and Crystal Physics, UFRC of Russian Academy of Sciences, 450054 Ufa, Russia c Politechnical Institute (branch) of M.K. Ammosov North-Eastern Federal University, Mirny, 678179, Russia d Institute of Molecule and Crystal Physics, UFRC of Russian Academy of Sciences, 450054 Ufa, Russia Metal forming is often accompanied by high energy costs due to the need to use high voltages. However, the electroplastic effect that occurs when high-density current pulses are passed through the metal reduces the yield strength of the material and improves its deformability without affecting the structure and mechanical properties. This can partially solve this problem and become the basis for a new energy-saving technology for metal forming. In this paper, we studied the effect of high-density current pulses on the plastic deformation of aluminum wires of the KAS 8176 brand at fixed tensile stresses. It was found that at a constant tensile stress, the increase in plastic deformation of the wire decreases with each subsequent pulse. This result confirms the dislocation mechanism of electroplasticity in aluminum. © 2024 Morkina A.Y., Tarov D.V., Yakushev I.A., Tatarinov P.S., Dmitriev S.V., Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of MRDMS 2023 organizers Keywords: Effect of electroplasticity; tensile deformation; aluminum; current pulses; Metal forming is often accompanied by high energy costs due to the need to use high voltages. However, the electroplastic effect that occurs when high-density current pulses are passed through the metal reduces the yield strength of the material and improves its deformability without affecting the structure and mechanical properties. This can partially solve this problem and become the basis for a new energy-saving technology for metal forming. In this paper, we studied the effect of high-density current pulses on the plastic deformation of aluminum wires of the KAS 8176 brand at fixed tensile stresses. It was found that at a constant tensile stress, the increase in plastic deformation of the wire decreases with each subsequent pulse. This result confirms the dislocation mechanism of electroplasticity in aluminum. © 2024 Morkina A.Y., Tarov D.V., Yakushev I.A., Tatarinov P.S., Dmitriev S.V., Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of MRDMS 2023 organizers Keywords: Effect of electroplasticity; tensile deformation; aluminum; current pulses; © 2024 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of MRDMS 2023 organizers Abstract Abstract

1. Introduction 1. Introduction

Nowadays, the study of the electroplastic effect attracts considerable attention from scientists and is characterized by a phenomenon in which the deformability of a material increases with a simultaneous decrease in the effective voltage under the influence of a high-density pulsed electric current Okazaki et al. (1978). This phenomenon in Nowadays, the study of the electroplastic effect attracts considerable attention from scientists and is characterized by a phenomenon in which the deformability of a material increases with a simultaneous decrease in the effective voltage under the influence of a high-density pulsed electric current Okazaki et al. (1978). This phenomenon in

* Corresponding author. Tel.: +7-987-596-1463. E-mail address: dmitriev.sergey.v@gmail.com * Corresponding author. Tel.: +7-987-596-1463. E-mail address: dmitriev.sergey.v@gmail.com

2452-3216 © 2024 The Authors, Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of MRDMS 2023 organizers 2452-3216 © 2024 The Authors, Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of MRDMS 2023 organizers

2452-3216 © 2024 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of MRDMS 2023 organizers 10.1016/j.prostr.2024.11.025