Evidence of dislocation cross-slip in MAX phase deformed at high temperature

Ti(2)AlN nanolayered ternary alloy has been plastically deformed under confining pressure at 900°C. The dislocation configurations of the deformed material have been analyzed by transmission electron microscopy. The results show a drastic evolution compared to the dislocation configurations observed...

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Autores principales: Guitton, Antoine, Joulain, Anne, Thilly, Ludovic, Tromas, Christophe
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2014
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4163670/
https://www.ncbi.nlm.nih.gov/pubmed/25220949
http://dx.doi.org/10.1038/srep06358
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author Guitton, Antoine
Joulain, Anne
Thilly, Ludovic
Tromas, Christophe
author_facet Guitton, Antoine
Joulain, Anne
Thilly, Ludovic
Tromas, Christophe
author_sort Guitton, Antoine
collection PubMed
description Ti(2)AlN nanolayered ternary alloy has been plastically deformed under confining pressure at 900°C. The dislocation configurations of the deformed material have been analyzed by transmission electron microscopy. The results show a drastic evolution compared to the dislocation configurations observed in the Ti(2)AlN samples deformed at room temperature. In particular, they evidence out-of-basal-plane dislocations and interactions. Moreover numerous cross-slip events from basal plane to prismatic or pyramidal planes are observed. These original results are discussed in the context of the Brittle-to-Ductile Transition of the nanolayered ternary alloys.
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spelling pubmed-41636702014-09-22 Evidence of dislocation cross-slip in MAX phase deformed at high temperature Guitton, Antoine Joulain, Anne Thilly, Ludovic Tromas, Christophe Sci Rep Article Ti(2)AlN nanolayered ternary alloy has been plastically deformed under confining pressure at 900°C. The dislocation configurations of the deformed material have been analyzed by transmission electron microscopy. The results show a drastic evolution compared to the dislocation configurations observed in the Ti(2)AlN samples deformed at room temperature. In particular, they evidence out-of-basal-plane dislocations and interactions. Moreover numerous cross-slip events from basal plane to prismatic or pyramidal planes are observed. These original results are discussed in the context of the Brittle-to-Ductile Transition of the nanolayered ternary alloys. Nature Publishing Group 2014-09-15 /pmc/articles/PMC4163670/ /pubmed/25220949 http://dx.doi.org/10.1038/srep06358 Text en Copyright © 2014, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by-nc-nd/4.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder in order to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/4.0/
spellingShingle Article
Guitton, Antoine
Joulain, Anne
Thilly, Ludovic
Tromas, Christophe
Evidence of dislocation cross-slip in MAX phase deformed at high temperature
title Evidence of dislocation cross-slip in MAX phase deformed at high temperature
title_full Evidence of dislocation cross-slip in MAX phase deformed at high temperature
title_fullStr Evidence of dislocation cross-slip in MAX phase deformed at high temperature
title_full_unstemmed Evidence of dislocation cross-slip in MAX phase deformed at high temperature
title_short Evidence of dislocation cross-slip in MAX phase deformed at high temperature
title_sort evidence of dislocation cross-slip in max phase deformed at high temperature
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4163670/
https://www.ncbi.nlm.nih.gov/pubmed/25220949
http://dx.doi.org/10.1038/srep06358
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