Blocking effect of twin boundaries on partial dislocation emission from void surfaces

Recent discovery that nanoscale twin boundaries can be introduced in ultrafine-grained metals to improve strength and ductility has renewed interest in the mechanical behavior and deformation mechanisms of these nanostructured materials. By controlling twin boundary spacing, the effect of twin bound...

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Detalles Bibliográficos
Autores principales: Zhang, Lifeng, Zhou, Haofei, Qu, Shaoxing
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer 2012
Materias:
Nano Express
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3359152/
https://www.ncbi.nlm.nih.gov/pubmed/22385908
http://dx.doi.org/10.1186/1556-276X-7-164
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author Zhang, Lifeng
Zhou, Haofei
Qu, Shaoxing
author_facet Zhang, Lifeng
Zhou, Haofei
Qu, Shaoxing
author_sort Zhang, Lifeng
collection PubMed
description Recent discovery that nanoscale twin boundaries can be introduced in ultrafine-grained metals to improve strength and ductility has renewed interest in the mechanical behavior and deformation mechanisms of these nanostructured materials. By controlling twin boundary spacing, the effect of twin boundaries on void growth is investigated by using atomistic simulation method. The strength is significantly enhanced due to the discontinuous slip system associated with these coherent interfaces. Atomic-scale mechanisms underlying void growth, as well as the interaction between twin boundaries and the void, are revealed in details.
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spelling pubmed-33591522012-06-05 Blocking effect of twin boundaries on partial dislocation emission from void surfaces Zhang, Lifeng Zhou, Haofei Qu, Shaoxing Nanoscale Res Lett Nano Express Recent discovery that nanoscale twin boundaries can be introduced in ultrafine-grained metals to improve strength and ductility has renewed interest in the mechanical behavior and deformation mechanisms of these nanostructured materials. By controlling twin boundary spacing, the effect of twin boundaries on void growth is investigated by using atomistic simulation method. The strength is significantly enhanced due to the discontinuous slip system associated with these coherent interfaces. Atomic-scale mechanisms underlying void growth, as well as the interaction between twin boundaries and the void, are revealed in details. Springer 2012-03-02 /pmc/articles/PMC3359152/ /pubmed/22385908 http://dx.doi.org/10.1186/1556-276X-7-164 Text en Copyright ©2012 Zhang et al; licensee Springer. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Nano Express
Zhang, Lifeng
Zhou, Haofei
Qu, Shaoxing
Blocking effect of twin boundaries on partial dislocation emission from void surfaces
title Blocking effect of twin boundaries on partial dislocation emission from void surfaces
title_full Blocking effect of twin boundaries on partial dislocation emission from void surfaces
title_fullStr Blocking effect of twin boundaries on partial dislocation emission from void surfaces
title_full_unstemmed Blocking effect of twin boundaries on partial dislocation emission from void surfaces
title_short Blocking effect of twin boundaries on partial dislocation emission from void surfaces
title_sort blocking effect of twin boundaries on partial dislocation emission from void surfaces
topic Nano Express
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3359152/
https://www.ncbi.nlm.nih.gov/pubmed/22385908
http://dx.doi.org/10.1186/1556-276X-7-164
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AT zhouhaofei blockingeffectoftwinboundariesonpartialdislocationemissionfromvoidsurfaces
AT qushaoxing blockingeffectoftwinboundariesonpartialdislocationemissionfromvoidsurfaces

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