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Excellent room temperature deformability in high strain rate regimes of magnesium alloy

Magnesium and its alloys have the lowest density among structural metallic materials; thus, this light-weight metal has great potential for reducing the weight, for example, of vehicles and trains. However, due to its crystal structure, deformability is poor; in particular, under compressive stress....

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Autores principales: Somekawa, Hidetoshi, Singh, Alok, Sahara, Ryoji, Inoue, Tadanobu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5766617/
https://www.ncbi.nlm.nih.gov/pubmed/29330549
http://dx.doi.org/10.1038/s41598-017-19124-w
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author Somekawa, Hidetoshi
Singh, Alok
Sahara, Ryoji
Inoue, Tadanobu
author_facet Somekawa, Hidetoshi
Singh, Alok
Sahara, Ryoji
Inoue, Tadanobu
author_sort Somekawa, Hidetoshi
collection PubMed
description Magnesium and its alloys have the lowest density among structural metallic materials; thus, this light-weight metal has great potential for reducing the weight, for example, of vehicles and trains. However, due to its crystal structure, deformability is poor; in particular, under compressive stress. In this study, we modified magnesium with bismuth as an alloying element, which has the characteristics of being likely to form precipitates instead of grain boundary segregation. The Mg-Bi binary alloy showed excellent deformability and high absorption of energy in high-strain rate regimes at room temperature via contribution of grain boundary sliding. These properties, which are closely comparable to those of conventional middle-strength aluminum alloys (Al-Mg and Al-Mg-Si series alloys), have never been observed before in magnesium alloys. The development of such properties opens the door for not only academic but also industrial research in magnesium.
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spelling pubmed-57666172018-01-25 Excellent room temperature deformability in high strain rate regimes of magnesium alloy Somekawa, Hidetoshi Singh, Alok Sahara, Ryoji Inoue, Tadanobu Sci Rep Article Magnesium and its alloys have the lowest density among structural metallic materials; thus, this light-weight metal has great potential for reducing the weight, for example, of vehicles and trains. However, due to its crystal structure, deformability is poor; in particular, under compressive stress. In this study, we modified magnesium with bismuth as an alloying element, which has the characteristics of being likely to form precipitates instead of grain boundary segregation. The Mg-Bi binary alloy showed excellent deformability and high absorption of energy in high-strain rate regimes at room temperature via contribution of grain boundary sliding. These properties, which are closely comparable to those of conventional middle-strength aluminum alloys (Al-Mg and Al-Mg-Si series alloys), have never been observed before in magnesium alloys. The development of such properties opens the door for not only academic but also industrial research in magnesium. Nature Publishing Group UK 2018-01-12 /pmc/articles/PMC5766617/ /pubmed/29330549 http://dx.doi.org/10.1038/s41598-017-19124-w Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Somekawa, Hidetoshi
Singh, Alok
Sahara, Ryoji
Inoue, Tadanobu
Excellent room temperature deformability in high strain rate regimes of magnesium alloy
title Excellent room temperature deformability in high strain rate regimes of magnesium alloy
title_full Excellent room temperature deformability in high strain rate regimes of magnesium alloy
title_fullStr Excellent room temperature deformability in high strain rate regimes of magnesium alloy
title_full_unstemmed Excellent room temperature deformability in high strain rate regimes of magnesium alloy
title_short Excellent room temperature deformability in high strain rate regimes of magnesium alloy
title_sort excellent room temperature deformability in high strain rate regimes of magnesium alloy
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5766617/
https://www.ncbi.nlm.nih.gov/pubmed/29330549
http://dx.doi.org/10.1038/s41598-017-19124-w
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