Repulsion leads to coupled dislocation motion and extended work hardening in bcc metals

Work hardening of tungsten in the thermally activated regime is highly orientation dependent. Here, we show that kink-pair nucleation controlled coupled motion of repulsively oriented screw dislocation pairs occurs and leads to an orientation dependent additional plastic slip on unexpected slip syst...

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Autores principales:	K. Srivastava, D. Weygand, D. Caillard, P. Gumbsch
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2020
Materias:	Science Q
Acceso en línea:	https://doaj.org/article/291a645aba05486b9a71e86aa263e74a
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spelling	oai:doaj.org-article:291a645aba05486b9a71e86aa263e74a2021-12-02T18:01:53ZRepulsion leads to coupled dislocation motion and extended work hardening in bcc metals10.1038/s41467-020-18774-12041-1723https://doaj.org/article/291a645aba05486b9a71e86aa263e74a2020-10-01T00:00:00Zhttps://doi.org/10.1038/s41467-020-18774-1https://doaj.org/toc/2041-1723Work hardening of tungsten in the thermally activated regime is highly orientation dependent. Here, we show that kink-pair nucleation controlled coupled motion of repulsively oriented screw dislocation pairs occurs and leads to an orientation dependent additional plastic slip on unexpected slip systems.K. SrivastavaD. WeygandD. CaillardP. GumbschNature PortfolioarticleScienceQENNature Communications, Vol 11, Iss 1, Pp 1-8 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Science Q
spellingShingle	Science Q K. Srivastava D. Weygand D. Caillard P. Gumbsch Repulsion leads to coupled dislocation motion and extended work hardening in bcc metals
description	Work hardening of tungsten in the thermally activated regime is highly orientation dependent. Here, we show that kink-pair nucleation controlled coupled motion of repulsively oriented screw dislocation pairs occurs and leads to an orientation dependent additional plastic slip on unexpected slip systems.
format	article
author	K. Srivastava D. Weygand D. Caillard P. Gumbsch
author_facet	K. Srivastava D. Weygand D. Caillard P. Gumbsch
author_sort	K. Srivastava
title	Repulsion leads to coupled dislocation motion and extended work hardening in bcc metals
title_short	Repulsion leads to coupled dislocation motion and extended work hardening in bcc metals
title_full	Repulsion leads to coupled dislocation motion and extended work hardening in bcc metals
title_fullStr	Repulsion leads to coupled dislocation motion and extended work hardening in bcc metals
title_full_unstemmed	Repulsion leads to coupled dislocation motion and extended work hardening in bcc metals
title_sort	repulsion leads to coupled dislocation motion and extended work hardening in bcc metals
publisher	Nature Portfolio
publishDate	2020
url	https://doaj.org/article/291a645aba05486b9a71e86aa263e74a
work_keys_str_mv	AT ksrivastava repulsionleadstocoupleddislocationmotionandextendedworkhardeninginbccmetals AT dweygand repulsionleadstocoupleddislocationmotionandextendedworkhardeninginbccmetals AT dcaillard repulsionleadstocoupleddislocationmotionandextendedworkhardeninginbccmetals AT pgumbsch repulsionleadstocoupleddislocationmotionandextendedworkhardeninginbccmetals
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Repulsion leads to coupled dislocation motion and extended work hardening in bcc metals

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