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Microstructure and Mechanical Properties of As-Aged Mg-Zn-Sn-Mn-Al Alloys

The microstructure and mechanical properties of as-aged Mg-6Zn-4Sn-1Mn-xAl (ZTM641-xAl, x = 0, 0.2, 0.5, 1, 2, 3 and 4 wt.%) alloys are studied in this paper. In terms of microstructure, the results reveal that the addition of Al mainly leads to the formation of the Al(8)Mn(5), Al(11)Mn(4), Al(2)Mg(...

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Autores principales: Hou, Caihong, Ye, Zhisong, Qi, Fugang, Lu, Liwei, She, Jia, Wang, Lifei, Ouyang, Xiaoping, Zhao, Nie, Chen, Jing
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9821560/
https://www.ncbi.nlm.nih.gov/pubmed/36614447
http://dx.doi.org/10.3390/ma16010109
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author Hou, Caihong
Ye, Zhisong
Qi, Fugang
Lu, Liwei
She, Jia
Wang, Lifei
Ouyang, Xiaoping
Zhao, Nie
Chen, Jing
author_facet Hou, Caihong
Ye, Zhisong
Qi, Fugang
Lu, Liwei
She, Jia
Wang, Lifei
Ouyang, Xiaoping
Zhao, Nie
Chen, Jing
author_sort Hou, Caihong
collection PubMed
description The microstructure and mechanical properties of as-aged Mg-6Zn-4Sn-1Mn-xAl (ZTM641-xAl, x = 0, 0.2, 0.5, 1, 2, 3 and 4 wt.%) alloys are studied in this paper. In terms of microstructure, the results reveal that the addition of Al mainly leads to the formation of the Al(8)Mn(5), Al(11)Mn(4), Al(2)Mg(5)Zn(2) and Mg(32)(Al,Zn)(49) phases. With increases in the addition of Al, the average grain size first decreases and then increases, while the undissolved phases increase. The average grain size of the ZTM641-0.5Al alloy is the smallest, and the single-aged and double-aged grain size is 14 μm and 12 μm, respectively. As for mechanical properties, with increases in the Al element, the strength decreases, and the elongation first increases and then decreases. The double-aged ZTM641-0.2Al alloy exhibits favorable mechanical properties at room temperature, and the UTS, YS and elongation are 384 MPa, 360 MPa and 9%, respectively. Further, the double-aged ZTM641-0.2Al alloy exhibits the comprehensive mechanical properties at 150 °C, that is, the UTS, YS and elongation are 212 MPa, 196 MPa and 29%, respectively, which is about 45% higher than that of the elongation of ZTM641. The ZTM641-xAl alloys exhibits mixed fracture at room temperature, and, with increases in the addition of Al, the fracture mechanisms of alloys are mixed fracture, ductile fracture and mixed fracture at 200 °C.
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spelling pubmed-98215602023-01-07 Microstructure and Mechanical Properties of As-Aged Mg-Zn-Sn-Mn-Al Alloys Hou, Caihong Ye, Zhisong Qi, Fugang Lu, Liwei She, Jia Wang, Lifei Ouyang, Xiaoping Zhao, Nie Chen, Jing Materials (Basel) Article The microstructure and mechanical properties of as-aged Mg-6Zn-4Sn-1Mn-xAl (ZTM641-xAl, x = 0, 0.2, 0.5, 1, 2, 3 and 4 wt.%) alloys are studied in this paper. In terms of microstructure, the results reveal that the addition of Al mainly leads to the formation of the Al(8)Mn(5), Al(11)Mn(4), Al(2)Mg(5)Zn(2) and Mg(32)(Al,Zn)(49) phases. With increases in the addition of Al, the average grain size first decreases and then increases, while the undissolved phases increase. The average grain size of the ZTM641-0.5Al alloy is the smallest, and the single-aged and double-aged grain size is 14 μm and 12 μm, respectively. As for mechanical properties, with increases in the Al element, the strength decreases, and the elongation first increases and then decreases. The double-aged ZTM641-0.2Al alloy exhibits favorable mechanical properties at room temperature, and the UTS, YS and elongation are 384 MPa, 360 MPa and 9%, respectively. Further, the double-aged ZTM641-0.2Al alloy exhibits the comprehensive mechanical properties at 150 °C, that is, the UTS, YS and elongation are 212 MPa, 196 MPa and 29%, respectively, which is about 45% higher than that of the elongation of ZTM641. The ZTM641-xAl alloys exhibits mixed fracture at room temperature, and, with increases in the addition of Al, the fracture mechanisms of alloys are mixed fracture, ductile fracture and mixed fracture at 200 °C. MDPI 2022-12-22 /pmc/articles/PMC9821560/ /pubmed/36614447 http://dx.doi.org/10.3390/ma16010109 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/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 (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Hou, Caihong
Ye, Zhisong
Qi, Fugang
Lu, Liwei
She, Jia
Wang, Lifei
Ouyang, Xiaoping
Zhao, Nie
Chen, Jing
Microstructure and Mechanical Properties of As-Aged Mg-Zn-Sn-Mn-Al Alloys
title Microstructure and Mechanical Properties of As-Aged Mg-Zn-Sn-Mn-Al Alloys
title_full Microstructure and Mechanical Properties of As-Aged Mg-Zn-Sn-Mn-Al Alloys
title_fullStr Microstructure and Mechanical Properties of As-Aged Mg-Zn-Sn-Mn-Al Alloys
title_full_unstemmed Microstructure and Mechanical Properties of As-Aged Mg-Zn-Sn-Mn-Al Alloys
title_short Microstructure and Mechanical Properties of As-Aged Mg-Zn-Sn-Mn-Al Alloys
title_sort microstructure and mechanical properties of as-aged mg-zn-sn-mn-al alloys
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9821560/
https://www.ncbi.nlm.nih.gov/pubmed/36614447
http://dx.doi.org/10.3390/ma16010109
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