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Quasicrystal-reinforced Mg alloys

The formation of the icosahedral phase (I-phase) as a secondary solidification phase in Mg–Zn–Y and Mg–Zn–Al base systems provides useful advantages in designing high performance wrought magnesium alloys. The strengthening in two-phase composites (I-phase + α-Mg) can be explained by dispersion harde...

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Autores principales: Kyun Kim, Young, Tae Kim, Won, Hyang Kim, Do
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Taylor & Francis 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5090411/
https://www.ncbi.nlm.nih.gov/pubmed/27877660
http://dx.doi.org/10.1088/1468-6996/15/2/024801
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author Kyun Kim, Young
Tae Kim, Won
Hyang Kim, Do
author_facet Kyun Kim, Young
Tae Kim, Won
Hyang Kim, Do
author_sort Kyun Kim, Young
collection PubMed
description The formation of the icosahedral phase (I-phase) as a secondary solidification phase in Mg–Zn–Y and Mg–Zn–Al base systems provides useful advantages in designing high performance wrought magnesium alloys. The strengthening in two-phase composites (I-phase + α-Mg) can be explained by dispersion hardening due to the presence of I-phase particles and by the strong bonding property at the I-phase/matrix interface. The presence of an additional secondary solidification phase can further enhance formability and mechanical properties. In Mg–Zn–Y alloys, the co-presence of I and Ca(2)Mg(6)Zn(3) phases by addition of Ca can significantly enhance formability, while in Mg–Zn–Al alloys, the co-presence of the I-phase and Mg(2)Sn phase leads to the enhancement of mechanical properties. Dynamic and static recrystallization are significantly accelerated by addition of Ca in Mg–Zn–Y alloy, resulting in much smaller grain size and more random texture. The high strength of Mg–Zn–Al–Sn alloys is attributed to the presence of finely distributed Mg(2)Sn and I-phase particles embedded in the α-Mg matrix.
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spelling pubmed-50904112016-11-22 Quasicrystal-reinforced Mg alloys Kyun Kim, Young Tae Kim, Won Hyang Kim, Do Sci Technol Adv Mater Focus on Complex Metallic Phases The formation of the icosahedral phase (I-phase) as a secondary solidification phase in Mg–Zn–Y and Mg–Zn–Al base systems provides useful advantages in designing high performance wrought magnesium alloys. The strengthening in two-phase composites (I-phase + α-Mg) can be explained by dispersion hardening due to the presence of I-phase particles and by the strong bonding property at the I-phase/matrix interface. The presence of an additional secondary solidification phase can further enhance formability and mechanical properties. In Mg–Zn–Y alloys, the co-presence of I and Ca(2)Mg(6)Zn(3) phases by addition of Ca can significantly enhance formability, while in Mg–Zn–Al alloys, the co-presence of the I-phase and Mg(2)Sn phase leads to the enhancement of mechanical properties. Dynamic and static recrystallization are significantly accelerated by addition of Ca in Mg–Zn–Y alloy, resulting in much smaller grain size and more random texture. The high strength of Mg–Zn–Al–Sn alloys is attributed to the presence of finely distributed Mg(2)Sn and I-phase particles embedded in the α-Mg matrix. Taylor & Francis 2014-04-30 /pmc/articles/PMC5090411/ /pubmed/27877660 http://dx.doi.org/10.1088/1468-6996/15/2/024801 Text en © 2014 National Institute for Materials Science http://creativecommons.org/licenses/by-nc-sa/3.0/ Content from this work may be used under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 licence (http://creativecommons.org/licenses/by-nc-sa/3.0/) . Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.
spellingShingle Focus on Complex Metallic Phases
Kyun Kim, Young
Tae Kim, Won
Hyang Kim, Do
Quasicrystal-reinforced Mg alloys
title Quasicrystal-reinforced Mg alloys
title_full Quasicrystal-reinforced Mg alloys
title_fullStr Quasicrystal-reinforced Mg alloys
title_full_unstemmed Quasicrystal-reinforced Mg alloys
title_short Quasicrystal-reinforced Mg alloys
title_sort quasicrystal-reinforced mg alloys
topic Focus on Complex Metallic Phases
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5090411/
https://www.ncbi.nlm.nih.gov/pubmed/27877660
http://dx.doi.org/10.1088/1468-6996/15/2/024801
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