Interaction of Glide Dislocations with Extended Precipitates in Mg-Nd alloys

Abstract The unit processes of precipitate-dislocation interaction in dilute Mg-Nd alloys are elucidated through in situ indentation experiments in TEM. Results suggest that pinned dislocations can glide along the broad facets of extended β1 precipitates, a common strengthening phase in Mg- rare ear...

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Autores principales:	Zhihua Huang, John E. Allison, Amit Misra
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/69494ee6bf3c4c428e550977c80997f8
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spelling	oai:doaj.org-article:69494ee6bf3c4c428e550977c80997f82021-12-02T15:08:23ZInteraction of Glide Dislocations with Extended Precipitates in Mg-Nd alloys10.1038/s41598-018-20629-12045-2322https://doaj.org/article/69494ee6bf3c4c428e550977c80997f82018-02-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-20629-1https://doaj.org/toc/2045-2322Abstract The unit processes of precipitate-dislocation interaction in dilute Mg-Nd alloys are elucidated through in situ indentation experiments in TEM. Results suggest that pinned dislocations can glide along the broad facets of extended β1 precipitates, a common strengthening phase in Mg- rare earth (RE) alloys. A dislocation-theory based analysis suggests that the shape, spacing and orientation (with respect to the glide plane) of β1 precipitates may favor glide of pinned dislocations along interfaces as opposed to the classical mechanism of bowing and looping around the precipitate.Zhihua HuangJohn E. AllisonAmit MisraNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-12 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Zhihua Huang John E. Allison Amit Misra Interaction of Glide Dislocations with Extended Precipitates in Mg-Nd alloys
description	Abstract The unit processes of precipitate-dislocation interaction in dilute Mg-Nd alloys are elucidated through in situ indentation experiments in TEM. Results suggest that pinned dislocations can glide along the broad facets of extended β1 precipitates, a common strengthening phase in Mg- rare earth (RE) alloys. A dislocation-theory based analysis suggests that the shape, spacing and orientation (with respect to the glide plane) of β1 precipitates may favor glide of pinned dislocations along interfaces as opposed to the classical mechanism of bowing and looping around the precipitate.
format	article
author	Zhihua Huang John E. Allison Amit Misra
author_facet	Zhihua Huang John E. Allison Amit Misra
author_sort	Zhihua Huang
title	Interaction of Glide Dislocations with Extended Precipitates in Mg-Nd alloys
title_short	Interaction of Glide Dislocations with Extended Precipitates in Mg-Nd alloys
title_full	Interaction of Glide Dislocations with Extended Precipitates in Mg-Nd alloys
title_fullStr	Interaction of Glide Dislocations with Extended Precipitates in Mg-Nd alloys
title_full_unstemmed	Interaction of Glide Dislocations with Extended Precipitates in Mg-Nd alloys
title_sort	interaction of glide dislocations with extended precipitates in mg-nd alloys
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/69494ee6bf3c4c428e550977c80997f8
work_keys_str_mv	AT zhihuahuang interactionofglidedislocationswithextendedprecipitatesinmgndalloys AT johneallison interactionofglidedislocationswithextendedprecipitatesinmgndalloys AT amitmisra interactionofglidedislocationswithextendedprecipitatesinmgndalloys
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Interaction of Glide Dislocations with Extended Precipitates in Mg-Nd alloys

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