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Unravelling the nucleation and growth of {11-(2)over-bar2} twins
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SYSNO ASEP 0558216 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Unravelling the nucleation and growth of {11-(2)over-bar2} twins Author(s) Ostapovets, Andriy (UFM-A) RID, ORCID
Verma, Ritu (UFM-A)
Serra, A. (ES)Number of authors 3 Article number 114730 Source Title Scripta Materialia. - : Elsevier - ISSN 1359-6462
Roč. 215, JUL (2022)Number of pages 5 s. Language eng - English Country GB - United Kingdom Keywords twinning dislocations ; computer-simulation ; hcp metals ; deformation ; defects ; boundaries ; titanium ; crystallography ; disconnections ; interface ; Twinning ; Titanium ; Phase transformation ; Disconnections ; Twin boundaries Subject RIV JG - Metallurgy OECD category Materials engineering Method of publishing Limited access Institutional support UFM-A - RVO:68081723 UT WOS 000800016600005 EID SCOPUS 85127775564 DOI 10.1016/j.scriptamat.2022.114730 Annotation A recently proposed mechanism of {11 <(2) over bar > 2} twin nucleation in Ti by reverse phase transformation is analysed. It is demonstrated that, not only nucleation, but also growth mechanism of an already formed twin is connected to the possibility of the phase transformation in the system, which leads to the existence of several competing structures of twin boundary. The twin growth is mediated by subsequent glide of step-like defects (disconnections) along the {1122} boundary. The twin shear is completed by gliding of pair of disconnections, which also converts twin boundary structure between two alternative variants. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2023 Electronic address https://www.sciencedirect.com/science/article/pii/S1359646222002263?via%3Dihub
Number of the records: 1