Deformation twinning mechanism in hexagonal-close-packed crystals

The atomic structure of {10 [Formula: see text] 2} twin boundary (TB) from a deformed Mg-3Al-1Zn (AZ31) magnesium alloy was examined by using high-resolution transmission electron microscopy (HRTEM). By comparing the lattice structure of TB with the previously established model, a kind of special at...

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Autores principales: Jiang, Shan, Jiang, Zhongtao, Chen, Qiaowang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6345936/
https://www.ncbi.nlm.nih.gov/pubmed/30679673
http://dx.doi.org/10.1038/s41598-018-37067-8
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author Jiang, Shan
Jiang, Zhongtao
Chen, Qiaowang
author_facet Jiang, Shan
Jiang, Zhongtao
Chen, Qiaowang
author_sort Jiang, Shan
collection PubMed
description The atomic structure of {10 [Formula: see text] 2} twin boundary (TB) from a deformed Mg-3Al-1Zn (AZ31) magnesium alloy was examined by using high-resolution transmission electron microscopy (HRTEM). By comparing the lattice structure of TB with the previously established model, a kind of special atomic combinations, here named primitive cells (PCs), were discovered at the TB. The PCs reorientation induced mechanism of twinning in hexagonal-close-packed (HCP) crystals was hence verificated. Meanwhile, the relationship between the misorientation of adjacent layers of PCs and the width of TB was discussed. The verification of the mechanism clarifies the twinning mechanism in HCP crystals and opens up opportunities for further researches.
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spelling pubmed-63459362019-01-29 Deformation twinning mechanism in hexagonal-close-packed crystals Jiang, Shan Jiang, Zhongtao Chen, Qiaowang Sci Rep Article The atomic structure of {10 [Formula: see text] 2} twin boundary (TB) from a deformed Mg-3Al-1Zn (AZ31) magnesium alloy was examined by using high-resolution transmission electron microscopy (HRTEM). By comparing the lattice structure of TB with the previously established model, a kind of special atomic combinations, here named primitive cells (PCs), were discovered at the TB. The PCs reorientation induced mechanism of twinning in hexagonal-close-packed (HCP) crystals was hence verificated. Meanwhile, the relationship between the misorientation of adjacent layers of PCs and the width of TB was discussed. The verification of the mechanism clarifies the twinning mechanism in HCP crystals and opens up opportunities for further researches. Nature Publishing Group UK 2019-01-24 /pmc/articles/PMC6345936/ /pubmed/30679673 http://dx.doi.org/10.1038/s41598-018-37067-8 Text en © The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Jiang, Shan
Jiang, Zhongtao
Chen, Qiaowang
Deformation twinning mechanism in hexagonal-close-packed crystals
title Deformation twinning mechanism in hexagonal-close-packed crystals
title_full Deformation twinning mechanism in hexagonal-close-packed crystals
title_fullStr Deformation twinning mechanism in hexagonal-close-packed crystals
title_full_unstemmed Deformation twinning mechanism in hexagonal-close-packed crystals
title_short Deformation twinning mechanism in hexagonal-close-packed crystals
title_sort deformation twinning mechanism in hexagonal-close-packed crystals
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6345936/
https://www.ncbi.nlm.nih.gov/pubmed/30679673
http://dx.doi.org/10.1038/s41598-018-37067-8
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