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Faceting of {11(2)over-bar6} twin interfaces in rolled pure magnesium
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SYSNO ASEP 0556949 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Faceting of {11(2)over-bar6} twin interfaces in rolled pure magnesium Author(s) Verma, Ritu (UFM-A)
Král, Lubomír (UFM-A) RID, ORCID
Ostapovets, Andriy (UFM-A) RID, ORCIDNumber of authors 3 Source Title Philosophical Magazine. - : Taylor & Francis - ISSN 1478-6435
Roč. 102, č. 10 (2022), s. 861-874Number of pages 14 s. Language eng - English Country GB - United Kingdom Keywords structural-characterization ; atomic-resolution ; boundaries ; dislocations ; mg ; alloys ; growth ; Magnesium ; twin boundary ; interfaces ; atomistic simulations ; sem ; tem Subject RIV JG - Metallurgy OECD category Materials engineering R&D Projects GA18-07140S GA ČR - Czech Science Foundation (CSF) Method of publishing Limited access Institutional support UFM-A - RVO:68081723 UT WOS 000739724600001 EID SCOPUS 85122519022 DOI 10.1080/14786435.2021.2022232 Annotation Recent studies proved that the faceting of twin boundaries is a common feature in hcp materials. It was demonstrated that the asymmetrical facets in the most frequent {10 (1) over bar2} and {10 (1) over bar1} twin interfaces are the consequence of the twin boundary migration mechanism. We demonstrate that a similar mechanism is also applicable to less common {11 (2) over bar6} twins, observed in pure magnesium rolled at room temperature. The migration of {11 (2) over bar6} twin boundary is mediated by disconnections, which have Burgers vector b = 0.030[11 (2) over bar(1) over bar] and step height equal to four {11 (2) over bar6} interplanar distances. The mechanism of asymmetrical facets nucleation is also demonstrated by using atomistic simulations. The simulations are supported by transmission electron microscopy (TEM) of asymmetrical basal-pyramidal interfaces of {11 (2) over bar6} twins. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2023 Electronic address https://www.tandfonline.com/doi/abs/10.1080/14786435.2021.2022232?journalCode=tphm20
Number of the records: 1