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Article

Monitoring Dynamic Recrystallisation in Bioresorbable Alloy Mg-1Zn-0.2Ca by Means of an In Situ Acoustic Emission Technique

1
Institute of Advanced Technologies, Togliatti State University, 445020 Togliatti, Russia
2
Department of Mechanical and Industrial Engineering, Norwegian University of Science and Technology, 4791 Trondheim, Norway
*
Author to whom correspondence should be addressed.
Academic Editors: Bertolini Rachele and Mirco Peron
Materials 2022, 15(1), 328; https://doi.org/10.3390/ma15010328
Received: 14 December 2021 / Revised: 28 December 2021 / Accepted: 30 December 2021 / Published: 3 January 2022
(This article belongs to the Special Issue Magnesium and Its Alloys as Biodegradable Implants)
The tensile behaviour of the biocompatible alloy Mg-1Zn-0.2Ca (in wt.%) in the fine-grained state, obtained by severe plastic deformation via multiaxial isothermal forging, has been investigated in a wide range of temperatures (20 ÷ 300) °C and strain rates (5 × 10−4 ÷ 2 × 10−2) s−1 with the measurements of acoustic emission (AE). The dependences of mechanical properties, including the yield stress, ultimate strength, ductility, and the strain-hardening rate, on the test temperature and strain rate, were obtained and discussed. It is shown for the first time that an acoustic emission method is an effective tool for in situ monitoring of the dynamic recrystallisation (DRX) process. The specific behaviour of the acoustic emission spectral density reflected by its median frequency as a function of strain at various temperatures can serve as an indicator of the DRX process’s completeness. View Full-Text
Keywords: magnesium alloys; high-temperature deformation; dynamic recrystallisation; acoustic emission; microstructure; mechanical properties magnesium alloys; high-temperature deformation; dynamic recrystallisation; acoustic emission; microstructure; mechanical properties
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MDPI and ACS Style

Merson, D.; Linderov, M.; Brilevsky, A.; Danyuk, A.; Vinogradov, A. Monitoring Dynamic Recrystallisation in Bioresorbable Alloy Mg-1Zn-0.2Ca by Means of an In Situ Acoustic Emission Technique. Materials 2022, 15, 328. https://doi.org/10.3390/ma15010328

AMA Style

Merson D, Linderov M, Brilevsky A, Danyuk A, Vinogradov A. Monitoring Dynamic Recrystallisation in Bioresorbable Alloy Mg-1Zn-0.2Ca by Means of an In Situ Acoustic Emission Technique. Materials. 2022; 15(1):328. https://doi.org/10.3390/ma15010328

Chicago/Turabian Style

Merson, Dmitry, Mikhail Linderov, Alexander Brilevsky, Alexey Danyuk, and Alexei Vinogradov. 2022. "Monitoring Dynamic Recrystallisation in Bioresorbable Alloy Mg-1Zn-0.2Ca by Means of an In Situ Acoustic Emission Technique" Materials 15, no. 1: 328. https://doi.org/10.3390/ma15010328

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