PSI - Issue 65

ScienceDirect 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 Available online at www.sciencedirect.com

www.elsevier.com/locate/procedia www.elsevier.com/locate/procedia

Procedia Structural Integrity 65 (2024) 109–113

The 17th International Conference on MECHANICS, RESOURCE AND DIAGNOSTICS OF MATERIALS AND STRUCTURES (MRDMS 2023) Investigation of the influence of recrystallization annealing modes on the structure and properties of deformed aluminum alloy 2024 I.S. Kamantsev a , E.A. Putilova a , A.E. Trokhacheva a *, K.E. Pervukhin a , N.A. Kalinina a,b a Institute of Engineering Science, Ural Branch of the Russian Academy of Sciences, 34 Komsomolskaya St., Ekaterinburg, 620049, Russia b Kamensk-Uralsky Metallurgical Works JSC,5 Zavodskaya St., Sverdlovsk Region, Kamensk-Uralsky, 623405, Russia This paper presents the results of the combined use of the method for calculating the grain form factor and determining the microhardness in order to select a requested temperature range for recrystallization annealing of deformed aluminum alloy 2024. It is shown that at annealing temperatures above 400 °C, the holding time has virtually no effect on the grain form factor of the aluminum alloy 2024. At annealing temperatures above 400 °C, a uniform structure is formed with increased values of the hardness relative to the plastically deformed and initial state of the investigated alloy. It is also established that an increase of the holding time during recrystallization annealing allows for the formation of an equiaxed grain in the alloy at lower temperatures. © 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 Keywords: Aluminum alloy 2024; Form factor; Microhardness; Recrystallization. The 17th International Conference on MECHANICS, RESOURCE AND DIAGNOSTICS OF MATERIALS AND STRUCTURES (MRDMS 2023) Investigation of the influence of recrystallization annealing modes on the structure and properties of deformed aluminum alloy 2024 I.S. Kamantsev a , E.A. Putilova a , A.E. Trokhacheva a *, K.E. Pervukhin a , N.A. Kalinina a,b a Institute of Engineering Science, Ural Branch of the Russian Academy of Sciences, 34 Komsomolskaya St., Ekaterinburg, 620049, Russia b Kamensk-Uralsky Metallurgical Works JSC,5 Zavodskaya St., Sverdlovsk Region, Kamensk-Uralsky, 623405, Russia Abstract This paper presents the results of the combined use of the method for calculating the grain form factor and determining the microhardness in order to select a requested temperature range for recrystallization annealing of deformed aluminum alloy 2024. It is shown that at annealing temperatures above 400 °C, the holding time has virtually no effect on the grain form factor of the aluminum alloy 2024. At annealing temperatures above 400 °C, a uniform structure is formed with increased values of the hardness relative to the plastically deformed and initial state of the investigated alloy. It is also established that an increase of the holding time during recrystallization annealing allows for the formation of an equiaxed grain in the alloy at lower temperatures. © 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 Keywords: Aluminum alloy 2024; Form factor; Microhardness; Recrystallization. © 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

1. Introduction 1. Introduction

Aluminum alloy 2024 has found wide application in many industrial fields. It is used to produce sheets, profiles, wires, stampings, forgings, i.e. products obtained by applying metal forming operations. The microstructure of the material, which has undergone changes during metal forming operations, is characterized by heterogeneity and Aluminum alloy 2024 has found wide application in many industrial fields. It is used to produce sheets, profiles, wires, stampings, forgings, i.e. products obtained by applying metal forming operations. The microstructure of the material, which has undergone changes during metal forming operations, is characterized by heterogeneity and

* Corresponding author. Tel.: +79826222621 E-mail address: Annakazarmanova@mail.ru * Corresponding author. Tel.: +79826222621 E-mail address: Annakazarmanova@mail.ru

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.2024.11.017