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Critical fictive temperature for plasticity in metallic glasses

A long-sought goal in metallic glasses is to impart ductility without conceding their strength and elastic limit. The rational design of tough metallic glasses, however, remains challenging because of the inability of existing theories to capture the correlation between plasticity, composition and p...

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Detalles Bibliográficos
Autores principales: Kumar, Golden, Neibecker, Pascal, Liu, Yan Hui, Schroers, Jan
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Pub. Group 2013
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3586724/
https://www.ncbi.nlm.nih.gov/pubmed/23443564
http://dx.doi.org/10.1038/ncomms2546
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author Kumar, Golden
Neibecker, Pascal
Liu, Yan Hui
Schroers, Jan
author_facet Kumar, Golden
Neibecker, Pascal
Liu, Yan Hui
Schroers, Jan
author_sort Kumar, Golden
collection PubMed
description A long-sought goal in metallic glasses is to impart ductility without conceding their strength and elastic limit. The rational design of tough metallic glasses, however, remains challenging because of the inability of existing theories to capture the correlation between plasticity, composition and processing for a wide range of glass-forming alloys. Here we propose a phenomenological criterion based on a critical fictive temperature, T(fc), which can rationalize the effect of composition, cooling rate and annealing on room-temperature plasticity of metallic glasses. Such criterion helps in understanding the widespread mechanical behaviour of metallic glasses and reveals alloy-specific preparation conditions to circumvent brittleness.
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spelling pubmed-35867242013-03-05 Critical fictive temperature for plasticity in metallic glasses Kumar, Golden Neibecker, Pascal Liu, Yan Hui Schroers, Jan Nat Commun Article A long-sought goal in metallic glasses is to impart ductility without conceding their strength and elastic limit. The rational design of tough metallic glasses, however, remains challenging because of the inability of existing theories to capture the correlation between plasticity, composition and processing for a wide range of glass-forming alloys. Here we propose a phenomenological criterion based on a critical fictive temperature, T(fc), which can rationalize the effect of composition, cooling rate and annealing on room-temperature plasticity of metallic glasses. Such criterion helps in understanding the widespread mechanical behaviour of metallic glasses and reveals alloy-specific preparation conditions to circumvent brittleness. Nature Pub. Group 2013-02-26 /pmc/articles/PMC3586724/ /pubmed/23443564 http://dx.doi.org/10.1038/ncomms2546 Text en Copyright © 2013, Nature Publishing Group, a division of Macmillan Publishers Limited. All Rights Reserved. http://creativecommons.org/licenses/by-nc-nd/3.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/3.0/
spellingShingle Article
Kumar, Golden
Neibecker, Pascal
Liu, Yan Hui
Schroers, Jan
Critical fictive temperature for plasticity in metallic glasses
title Critical fictive temperature for plasticity in metallic glasses
title_full Critical fictive temperature for plasticity in metallic glasses
title_fullStr Critical fictive temperature for plasticity in metallic glasses
title_full_unstemmed Critical fictive temperature for plasticity in metallic glasses
title_short Critical fictive temperature for plasticity in metallic glasses
title_sort critical fictive temperature for plasticity in metallic glasses
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3586724/
https://www.ncbi.nlm.nih.gov/pubmed/23443564
http://dx.doi.org/10.1038/ncomms2546
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