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Maintaining High Strength in Mg-LPSO Alloys with Low Yttrium Content Using Severe Plastic Deformation
Alternative processing routes such as powder metallurgy, the extrusion of recycled chips, or equal channel angular pressing (ECAP) have been considered for effective methods of maintaining the high mechanical strength of Mg-Y-Zn alloys containing long-period stacking ordered structures with respect...
Autores principales: | , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5978110/ https://www.ncbi.nlm.nih.gov/pubmed/29734728 http://dx.doi.org/10.3390/ma11050733 |
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author | Garces, Gerardo Cabeza, Sandra Barea, Rafael Pérez, Pablo Adeva, Paloma |
author_facet | Garces, Gerardo Cabeza, Sandra Barea, Rafael Pérez, Pablo Adeva, Paloma |
author_sort | Garces, Gerardo |
collection | PubMed |
description | Alternative processing routes such as powder metallurgy, the extrusion of recycled chips, or equal channel angular pressing (ECAP) have been considered for effective methods of maintaining the high mechanical strength of Mg-Y-Zn alloys containing long-period stacking ordered structures with respect to the alloy processed by the conventional extrusion of as-cast ingots with the advantage of minimizing the yttrium content. A yield stress similar to that found for extruded Mg(97)Y(2)Zn(1) alloy can be attained with only half of the usual yttrium and zinc additions thanks to the grain refinement induced by ECAP processing. The properties of Mg(98.5)Y(1)Zn(0.5) subjected to ECAP are maintained up to 200 °C, but superplastic behavior is found above this temperature when the alloy is processed through a powder metallurgy route. |
format | Online Article Text |
id | pubmed-5978110 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-59781102018-05-31 Maintaining High Strength in Mg-LPSO Alloys with Low Yttrium Content Using Severe Plastic Deformation Garces, Gerardo Cabeza, Sandra Barea, Rafael Pérez, Pablo Adeva, Paloma Materials (Basel) Article Alternative processing routes such as powder metallurgy, the extrusion of recycled chips, or equal channel angular pressing (ECAP) have been considered for effective methods of maintaining the high mechanical strength of Mg-Y-Zn alloys containing long-period stacking ordered structures with respect to the alloy processed by the conventional extrusion of as-cast ingots with the advantage of minimizing the yttrium content. A yield stress similar to that found for extruded Mg(97)Y(2)Zn(1) alloy can be attained with only half of the usual yttrium and zinc additions thanks to the grain refinement induced by ECAP processing. The properties of Mg(98.5)Y(1)Zn(0.5) subjected to ECAP are maintained up to 200 °C, but superplastic behavior is found above this temperature when the alloy is processed through a powder metallurgy route. MDPI 2018-05-05 /pmc/articles/PMC5978110/ /pubmed/29734728 http://dx.doi.org/10.3390/ma11050733 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Garces, Gerardo Cabeza, Sandra Barea, Rafael Pérez, Pablo Adeva, Paloma Maintaining High Strength in Mg-LPSO Alloys with Low Yttrium Content Using Severe Plastic Deformation |
title | Maintaining High Strength in Mg-LPSO Alloys with Low Yttrium Content Using Severe Plastic Deformation |
title_full | Maintaining High Strength in Mg-LPSO Alloys with Low Yttrium Content Using Severe Plastic Deformation |
title_fullStr | Maintaining High Strength in Mg-LPSO Alloys with Low Yttrium Content Using Severe Plastic Deformation |
title_full_unstemmed | Maintaining High Strength in Mg-LPSO Alloys with Low Yttrium Content Using Severe Plastic Deformation |
title_short | Maintaining High Strength in Mg-LPSO Alloys with Low Yttrium Content Using Severe Plastic Deformation |
title_sort | maintaining high strength in mg-lpso alloys with low yttrium content using severe plastic deformation |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5978110/ https://www.ncbi.nlm.nih.gov/pubmed/29734728 http://dx.doi.org/10.3390/ma11050733 |
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