Characterization of a Mg95.5Zn1.5Y3 alloy both containing W phase and LPSO phase with or without heat treatment

Characterization of a Mg95.5Zn1.5Y3 alloy both containing W phase and LPSO phase with or without heat treatment

The influence of solid solution treatment on the microstructure and corrosion resistance of as-cast Mg95.5Zn1.5Y3 alloy is characterized. The microstructure of the as-cast Mg95.5Zn1.5Y3 alloy mainly consisted of α-Mg, W (Mg3Zn3Y2) phase, and the long period stacking ordered (LPSO) (Mg12ZnY) phase. A...

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Main Authors: Li Zhumin, Wan Diqing, Huang Yi, Ye Shuting, Hu Yinglin
Format: Article
Language:English
Published: KeAi Communications Co., Ltd. 2017-06-01
Series:Journal of Magnesium and Alloys
Online Access:http://www.sciencedirect.com/science/article/pii/S2213956717300233
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spelling doaj-e24d55e5d5364a10af3759618eb420442021-04-02T15:37:24ZengKeAi Communications Co., Ltd.Journal of Magnesium and Alloys2213-95672017-06-0152217224Characterization of a Mg95.5Zn1.5Y3 alloy both containing W phase and LPSO phase with or without heat treatmentLi Zhumin0Wan Diqing1Huang Yi2Ye Shuting3Hu Yinglin4School of Materials Science and Engineering, East China Jiaotong University, Nanchang 330013, ChinaSchool of Materials Science and Engineering, East China Jiaotong University, Nanchang 330013, China; Materials Research Group, Faculty of Engineering and the Environment, University of Southampton, Southampton SO17 1 BJ, UK; Corresponding author. School of Materials Science and Engineering, East China Jiaotong University, Nanchang 330013, China.Materials Research Group, Faculty of Engineering and the Environment, University of Southampton, Southampton SO17 1 BJ, UKSchool of Materials Science and Engineering, East China Jiaotong University, Nanchang 330013, ChinaSchool of Materials Science and Engineering, East China Jiaotong University, Nanchang 330013, ChinaThe influence of solid solution treatment on the microstructure and corrosion resistance of as-cast Mg95.5Zn1.5Y3 alloy is characterized. The microstructure of the as-cast Mg95.5Zn1.5Y3 alloy mainly consisted of α-Mg, W (Mg3Zn3Y2) phase, and the long period stacking ordered (LPSO) (Mg12ZnY) phase. After solid solution treatment, most of the W phase disappears gradually with increasing solution treatment time, with only a small amount of W phase distributed as particle. The LPSO phase slightly dissolved into substrate, and its morphology transitions from blocky shape to rod shape. Solid solution treatment of Mg95.5Zn1.5Y3 exhibits excellent corrosion resistance, because the Y and Zn atoms became enriched in the matrix and the changed morphologies of the LPSO and W phases were modified through heat treatment. The alloy created with solid solution treatment at 520 °C for 10 hours exhibits corrosion potential of −1.419 V, suggesting a significant improvement in corrosion performance. Keywords: Magnesium alloys, LPSO phase, Solid solution treatment, Corrosion resistancehttp://www.sciencedirect.com/science/article/pii/S2213956717300233
collection DOAJ
language English
format Article
sources DOAJ
author Li Zhumin
Wan Diqing
Huang Yi
Ye Shuting
Hu Yinglin
spellingShingle Li Zhumin
Wan Diqing
Huang Yi
Ye Shuting
Hu Yinglin
Characterization of a Mg95.5Zn1.5Y3 alloy both containing W phase and LPSO phase with or without heat treatment
Journal of Magnesium and Alloys
author_facet Li Zhumin
Wan Diqing
Huang Yi
Ye Shuting
Hu Yinglin
author_sort Li Zhumin
title Characterization of a Mg95.5Zn1.5Y3 alloy both containing W phase and LPSO phase with or without heat treatment
title_short Characterization of a Mg95.5Zn1.5Y3 alloy both containing W phase and LPSO phase with or without heat treatment
title_full Characterization of a Mg95.5Zn1.5Y3 alloy both containing W phase and LPSO phase with or without heat treatment
title_fullStr Characterization of a Mg95.5Zn1.5Y3 alloy both containing W phase and LPSO phase with or without heat treatment
title_full_unstemmed Characterization of a Mg95.5Zn1.5Y3 alloy both containing W phase and LPSO phase with or without heat treatment
title_sort characterization of a mg95.5zn1.5y3 alloy both containing w phase and lpso phase with or without heat treatment
publisher KeAi Communications Co., Ltd.
series Journal of Magnesium and Alloys
issn 2213-9567
publishDate 2017-06-01
description The influence of solid solution treatment on the microstructure and corrosion resistance of as-cast Mg95.5Zn1.5Y3 alloy is characterized. The microstructure of the as-cast Mg95.5Zn1.5Y3 alloy mainly consisted of α-Mg, W (Mg3Zn3Y2) phase, and the long period stacking ordered (LPSO) (Mg12ZnY) phase. After solid solution treatment, most of the W phase disappears gradually with increasing solution treatment time, with only a small amount of W phase distributed as particle. The LPSO phase slightly dissolved into substrate, and its morphology transitions from blocky shape to rod shape. Solid solution treatment of Mg95.5Zn1.5Y3 exhibits excellent corrosion resistance, because the Y and Zn atoms became enriched in the matrix and the changed morphologies of the LPSO and W phases were modified through heat treatment. The alloy created with solid solution treatment at 520 °C for 10 hours exhibits corrosion potential of −1.419 V, suggesting a significant improvement in corrosion performance. Keywords: Magnesium alloys, LPSO phase, Solid solution treatment, Corrosion resistance
url http://www.sciencedirect.com/science/article/pii/S2213956717300233
work_keys_str_mv AT lizhumin characterizationofamg955zn15y3alloybothcontainingwphaseandlpsophasewithorwithoutheattreatment
AT wandiqing characterizationofamg955zn15y3alloybothcontainingwphaseandlpsophasewithorwithoutheattreatment
AT huangyi characterizationofamg955zn15y3alloybothcontainingwphaseandlpsophasewithorwithoutheattreatment
AT yeshuting characterizationofamg955zn15y3alloybothcontainingwphaseandlpsophasewithorwithoutheattreatment
AT huyinglin characterizationofamg955zn15y3alloybothcontainingwphaseandlpsophasewithorwithoutheattreatment
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