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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...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Taylor & Francis
2014
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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. |
format | Online Article Text |
id | pubmed-5090411 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2014 |
publisher | Taylor & Francis |
record_format | MEDLINE/PubMed |
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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