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Effect of Zn Content on the Microstructure and Mechanical Properties of Mg–Al–Sn–Mn Alloys
High performance Mg–6Al–3Sn–0.25Mn–xZn alloys (x = 0, 0.5, 1.0, 1.5, and 2.0 wt %) without rare earth were designed. The effects of different Zn contents on the microstructure and mechanical properties were systematically investigated. The addition of Zn obviously refines the as-cast alloys dendriti...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6803948/ https://www.ncbi.nlm.nih.gov/pubmed/31547571 http://dx.doi.org/10.3390/ma12193102 |
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author | Zhao, Tianshuo Hu, Yaobo Pan, Fusheng He, Bing Guan, Maosheng Yuan, Yuan Tang, Aitao |
author_facet | Zhao, Tianshuo Hu, Yaobo Pan, Fusheng He, Bing Guan, Maosheng Yuan, Yuan Tang, Aitao |
author_sort | Zhao, Tianshuo |
collection | PubMed |
description | High performance Mg–6Al–3Sn–0.25Mn–xZn alloys (x = 0, 0.5, 1.0, 1.5, and 2.0 wt %) without rare earth were designed. The effects of different Zn contents on the microstructure and mechanical properties were systematically investigated. The addition of Zn obviously refines the as-cast alloys dendritic structure because of the increase in the number in the second phase. For the as-extruded alloys, an appropriate amount of Zn promotes complete recrystallization, thus increasing the grain size. As the Zn content increases, the texture gradually evolves into a typical strong basal texture, which means that the basal slip is difficult to initiate. Meanwhile, the addition of Zn promotes the precipitation of small-sized second phases, which can hinder the dislocation movement. The combination of texture strengthening and precipitation strengthening is the main reason for the improvement of alloys’ strength. |
format | Online Article Text |
id | pubmed-6803948 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-68039482019-11-18 Effect of Zn Content on the Microstructure and Mechanical Properties of Mg–Al–Sn–Mn Alloys Zhao, Tianshuo Hu, Yaobo Pan, Fusheng He, Bing Guan, Maosheng Yuan, Yuan Tang, Aitao Materials (Basel) Article High performance Mg–6Al–3Sn–0.25Mn–xZn alloys (x = 0, 0.5, 1.0, 1.5, and 2.0 wt %) without rare earth were designed. The effects of different Zn contents on the microstructure and mechanical properties were systematically investigated. The addition of Zn obviously refines the as-cast alloys dendritic structure because of the increase in the number in the second phase. For the as-extruded alloys, an appropriate amount of Zn promotes complete recrystallization, thus increasing the grain size. As the Zn content increases, the texture gradually evolves into a typical strong basal texture, which means that the basal slip is difficult to initiate. Meanwhile, the addition of Zn promotes the precipitation of small-sized second phases, which can hinder the dislocation movement. The combination of texture strengthening and precipitation strengthening is the main reason for the improvement of alloys’ strength. MDPI 2019-09-23 /pmc/articles/PMC6803948/ /pubmed/31547571 http://dx.doi.org/10.3390/ma12193102 Text en © 2019 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 Zhao, Tianshuo Hu, Yaobo Pan, Fusheng He, Bing Guan, Maosheng Yuan, Yuan Tang, Aitao Effect of Zn Content on the Microstructure and Mechanical Properties of Mg–Al–Sn–Mn Alloys |
title | Effect of Zn Content on the Microstructure and Mechanical Properties of Mg–Al–Sn–Mn Alloys |
title_full | Effect of Zn Content on the Microstructure and Mechanical Properties of Mg–Al–Sn–Mn Alloys |
title_fullStr | Effect of Zn Content on the Microstructure and Mechanical Properties of Mg–Al–Sn–Mn Alloys |
title_full_unstemmed | Effect of Zn Content on the Microstructure and Mechanical Properties of Mg–Al–Sn–Mn Alloys |
title_short | Effect of Zn Content on the Microstructure and Mechanical Properties of Mg–Al–Sn–Mn Alloys |
title_sort | effect of zn content on the microstructure and mechanical properties of mg–al–sn–mn alloys |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6803948/ https://www.ncbi.nlm.nih.gov/pubmed/31547571 http://dx.doi.org/10.3390/ma12193102 |
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