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The influence of gadolinium concentration on the twin propagation rate in magnesium alloys
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SYSNO ASEP 0571073 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title The influence of gadolinium concentration on the twin propagation rate in magnesium alloys Author(s) Máthis, K. (CZ)
Farkas, A. (CZ)
Knapek, M. (CZ)
Ostapovets, Andriy (UFM-A) RID, ORCID
Farkas, Gergely (UJF-V) RID, ORCID, SAI
Németh, Gergely (UJF-V) SAI, ORCID
Harcuba, P. (CZ)
Drozdenko, D. (CZ)Number of authors 8 Article number 169635 Source Title Journal of Alloys and Compounds. - : Elsevier - ISSN 0925-8388
Roč. 948, JUL (2023)Number of pages 7 s. Language eng - English Country CH - Switzerland Keywords Magnesium ; Ultra-high-speed imaging ; Twinning ; Jerky motion ; Molecular dynamics Subject RIV JG - Metallurgy OECD category Materials engineering Subject RIV - cooperation Nuclear Physics Institute - Solid Matter Physics ; Magnetism R&D Projects GA18-07140S GA ČR - Czech Science Foundation (CSF) LM2018111 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Limited access Institutional support UFM-A - RVO:68081723 ; UJF-V - RVO:61389005 UT WOS 000962810300001 EID SCOPUS 85150904674 DOI 10.1016/j.jallcom.2023.169635 Annotation Ultra-high-speed camera (UHSC) imaging was used for the study of the influence of gadolinium (Gd) content on the longitudinal growth of twins in Mg-Gd binary alloys. The results clearly indicate that the twin propagation rate is of the order of 101 m/s and slows down with increasing Gd concentration. Concurrent molecular dynamics (MD) simulations reveal that the presence of Gd atoms enhances the formation of stacking faults (SFs), which hinder twin propagation as effectively as twin boundary pinning by Gd solutes. As a result, the twin tip exhibits intermittent motion at the microscopic level.(c) 2023 Elsevier B.V. All rights reserved. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2024 Electronic address https://www.sciencedirect.com/science/article/pii/S0925838823009386?via%3Dihub
Number of the records: 1