Diffusional-displacive transformation enables formation of long-period stacking order in magnesium

Abstract Mg is the most important lightweight engineering alloy enabling future weight-reduced and fuel-saving engineering solutions. Yet, Mg is soft. Long-period stacking ordered (LPSO) structures in Mg alloys have unique crystal structures, characterized by both complex chemical and stacking order...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Jin-Kyung Kim, Lei Jin, Stefanie Sandlöbes, Dierk Raabe
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/0313a53de662401da8e56808108e62f6
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:0313a53de662401da8e56808108e62f6
record_format	dspace
spelling	oai:doaj.org-article:0313a53de662401da8e56808108e62f62021-12-02T15:06:21ZDiffusional-displacive transformation enables formation of long-period stacking order in magnesium10.1038/s41598-017-04343-y2045-2322https://doaj.org/article/0313a53de662401da8e56808108e62f62017-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-04343-yhttps://doaj.org/toc/2045-2322Abstract Mg is the most important lightweight engineering alloy enabling future weight-reduced and fuel-saving engineering solutions. Yet, Mg is soft. Long-period stacking ordered (LPSO) structures in Mg alloys have unique crystal structures, characterized by both complex chemical and stacking order. They are essential for strengthening of Mg alloys. The formation mechanism of these LPSO structures is still under discussion. Here we report that Y/Zn enriched Guinier-Preston (GP) zones observed in a lean Mg-Y-Zn model alloy are precursors of early stage LPSO structures. We provide evidence of a new type of phase transformation mechanism which comprises the diffusional formation of Y/Zn enriched GP zones and their subsequent shear transformation into LPSO building blocks. The mechanism constitutes a new type of coupled diffusional-displacive phase formation sequence which may also be applicable to other alloy systems.Jin-Kyung KimLei JinStefanie SandlöbesDierk RaabeNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-8 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Jin-Kyung Kim Lei Jin Stefanie Sandlöbes Dierk Raabe Diffusional-displacive transformation enables formation of long-period stacking order in magnesium
description	Abstract Mg is the most important lightweight engineering alloy enabling future weight-reduced and fuel-saving engineering solutions. Yet, Mg is soft. Long-period stacking ordered (LPSO) structures in Mg alloys have unique crystal structures, characterized by both complex chemical and stacking order. They are essential for strengthening of Mg alloys. The formation mechanism of these LPSO structures is still under discussion. Here we report that Y/Zn enriched Guinier-Preston (GP) zones observed in a lean Mg-Y-Zn model alloy are precursors of early stage LPSO structures. We provide evidence of a new type of phase transformation mechanism which comprises the diffusional formation of Y/Zn enriched GP zones and their subsequent shear transformation into LPSO building blocks. The mechanism constitutes a new type of coupled diffusional-displacive phase formation sequence which may also be applicable to other alloy systems.
format	article
author	Jin-Kyung Kim Lei Jin Stefanie Sandlöbes Dierk Raabe
author_facet	Jin-Kyung Kim Lei Jin Stefanie Sandlöbes Dierk Raabe
author_sort	Jin-Kyung Kim
title	Diffusional-displacive transformation enables formation of long-period stacking order in magnesium
title_short	Diffusional-displacive transformation enables formation of long-period stacking order in magnesium
title_full	Diffusional-displacive transformation enables formation of long-period stacking order in magnesium
title_fullStr	Diffusional-displacive transformation enables formation of long-period stacking order in magnesium
title_full_unstemmed	Diffusional-displacive transformation enables formation of long-period stacking order in magnesium
title_sort	diffusional-displacive transformation enables formation of long-period stacking order in magnesium
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/0313a53de662401da8e56808108e62f6
work_keys_str_mv	AT jinkyungkim diffusionaldisplacivetransformationenablesformationoflongperiodstackingorderinmagnesium AT leijin diffusionaldisplacivetransformationenablesformationoflongperiodstackingorderinmagnesium AT stefaniesandlobes diffusionaldisplacivetransformationenablesformationoflongperiodstackingorderinmagnesium AT dierkraabe diffusionaldisplacivetransformationenablesformationoflongperiodstackingorderinmagnesium
_version_	1718388492361269248

Diffusional-displacive transformation enables formation of long-period stacking order in magnesium

Ejemplares similares