Effect of LPSO and SFs on microstructure evolution and mechanical properties of Mg-Gd-Y-Zn-Zr alloy

High performance Mg-8.2Gd-3.8Y-1.0Zn-0.4Zr alloy with high strength and excellent ductility has been successfully developed by hot extrusion. The effect of plate-shaped long period stacking ordered (LPSO) phases and solute-segregated stacking faults (SFs) on the dynamically recrystallization (DRX) b...

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Autores principales: Xu, Chao, Nakata, Taiki, Qiao, Xiaoguang, Zheng, Mingyi, Wu, Kun, Kamado, Shigeharu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5278355/
https://www.ncbi.nlm.nih.gov/pubmed/28134297
http://dx.doi.org/10.1038/srep40846
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author Xu, Chao
Nakata, Taiki
Qiao, Xiaoguang
Zheng, Mingyi
Wu, Kun
Kamado, Shigeharu
author_facet Xu, Chao
Nakata, Taiki
Qiao, Xiaoguang
Zheng, Mingyi
Wu, Kun
Kamado, Shigeharu
author_sort Xu, Chao
collection PubMed
description High performance Mg-8.2Gd-3.8Y-1.0Zn-0.4Zr alloy with high strength and excellent ductility has been successfully developed by hot extrusion. The effect of plate-shaped long period stacking ordered (LPSO) phases and solute-segregated stacking faults (SFs) on the dynamically recrystallization (DRX) behavior was analyzed. The plate-shaped LPSO phases stimulate the DRX by particle stimulated nucleation mechanism, leading to higher DRX ratio and weaker basal texture. While for the alloy with dense fine SFs inside the original grains, discontinuous DRX initially occurs at the original grain boundaries, and the DRX is obviously restricted. Consequently, alloy containing dense SFs exhibits higher strength but lower ductility compared with alloy with plated-shaped LPSO phases.
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spelling pubmed-52783552017-02-03 Effect of LPSO and SFs on microstructure evolution and mechanical properties of Mg-Gd-Y-Zn-Zr alloy Xu, Chao Nakata, Taiki Qiao, Xiaoguang Zheng, Mingyi Wu, Kun Kamado, Shigeharu Sci Rep Article High performance Mg-8.2Gd-3.8Y-1.0Zn-0.4Zr alloy with high strength and excellent ductility has been successfully developed by hot extrusion. The effect of plate-shaped long period stacking ordered (LPSO) phases and solute-segregated stacking faults (SFs) on the dynamically recrystallization (DRX) behavior was analyzed. The plate-shaped LPSO phases stimulate the DRX by particle stimulated nucleation mechanism, leading to higher DRX ratio and weaker basal texture. While for the alloy with dense fine SFs inside the original grains, discontinuous DRX initially occurs at the original grain boundaries, and the DRX is obviously restricted. Consequently, alloy containing dense SFs exhibits higher strength but lower ductility compared with alloy with plated-shaped LPSO phases. Nature Publishing Group 2017-01-30 /pmc/articles/PMC5278355/ /pubmed/28134297 http://dx.doi.org/10.1038/srep40846 Text en Copyright © 2017, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Xu, Chao
Nakata, Taiki
Qiao, Xiaoguang
Zheng, Mingyi
Wu, Kun
Kamado, Shigeharu
Effect of LPSO and SFs on microstructure evolution and mechanical properties of Mg-Gd-Y-Zn-Zr alloy
title Effect of LPSO and SFs on microstructure evolution and mechanical properties of Mg-Gd-Y-Zn-Zr alloy
title_full Effect of LPSO and SFs on microstructure evolution and mechanical properties of Mg-Gd-Y-Zn-Zr alloy
title_fullStr Effect of LPSO and SFs on microstructure evolution and mechanical properties of Mg-Gd-Y-Zn-Zr alloy
title_full_unstemmed Effect of LPSO and SFs on microstructure evolution and mechanical properties of Mg-Gd-Y-Zn-Zr alloy
title_short Effect of LPSO and SFs on microstructure evolution and mechanical properties of Mg-Gd-Y-Zn-Zr alloy
title_sort effect of lpso and sfs on microstructure evolution and mechanical properties of mg-gd-y-zn-zr alloy
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5278355/
https://www.ncbi.nlm.nih.gov/pubmed/28134297
http://dx.doi.org/10.1038/srep40846
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