Deformation Behavior and Dynamic Recrystallization of Mg-1Li-1Al Alloy
In this paper, the hot workability of Mg-1Li-1Al (LA11) alloy is assessed through a uniaxial compression test in a temperature range from 200 to 400 °C and a strain rate, έ, of 1–0.01 s<sup>−1</sup>. The present study reveals that flow stress increases when the strain rate increases and...
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| Format: | Article |
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MDPI AG
2021-10-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/11/11/1696 |
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| author | Xiaoyan Feng Xue Pang Xu He Ruihong Li Zili Jin Huiping Ren Tingting Liu |
| author_facet | Xiaoyan Feng Xue Pang Xu He Ruihong Li Zili Jin Huiping Ren Tingting Liu |
| author_sort | Xiaoyan Feng |
| collection | DOAJ |
| description | In this paper, the hot workability of Mg-1Li-1Al (LA11) alloy is assessed through a uniaxial compression test in a temperature range from 200 to 400 °C and a strain rate, έ, of 1–0.01 s<sup>−1</sup>. The present study reveals that flow stress increases when the strain rate increases and deformation temperature decreases. Based on the hyperbolic sine equation, the flow stress constitutive equation of this alloy under high-temperature deformation is established. The average activation energy was 116.5 kJ/mol. Avrami equation was employed to investigate the dynamic recrystallization (DRX). The DRX mechanism affected by the deformation conditions and Zener–Hollomon parameters is revealed. Finally, the relationship between DRX volume fraction and deformation parameter is verified based on microstructure evolution, which is consistent with the theoretical prediction. |
| first_indexed | 2024-03-10T05:16:23Z |
| format | Article |
| id | doaj.art-0339c803a4c7447ab995eae38fd518c1 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-10T05:16:23Z |
| publishDate | 2021-10-01 |
| publisher | MDPI AG |
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| series | Metals |
| spelling | doaj.art-0339c803a4c7447ab995eae38fd518c12023-11-23T00:22:14ZengMDPI AGMetals2075-47012021-10-011111169610.3390/met11111696Deformation Behavior and Dynamic Recrystallization of Mg-1Li-1Al AlloyXiaoyan Feng0Xue Pang1Xu He2Ruihong Li3Zili Jin4Huiping Ren5Tingting Liu6School of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou 014010, ChinaSchool of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou 014010, ChinaSchool of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou 014010, ChinaSchool of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou 014010, ChinaSchool of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou 014010, ChinaSchool of Materials and Metallurgy, Inner Mongolia University of Science and Technology, Baotou 014010, ChinaSchool of Materials and Energy, Southwest University, Chongqing 400715, ChinaIn this paper, the hot workability of Mg-1Li-1Al (LA11) alloy is assessed through a uniaxial compression test in a temperature range from 200 to 400 °C and a strain rate, έ, of 1–0.01 s<sup>−1</sup>. The present study reveals that flow stress increases when the strain rate increases and deformation temperature decreases. Based on the hyperbolic sine equation, the flow stress constitutive equation of this alloy under high-temperature deformation is established. The average activation energy was 116.5 kJ/mol. Avrami equation was employed to investigate the dynamic recrystallization (DRX). The DRX mechanism affected by the deformation conditions and Zener–Hollomon parameters is revealed. Finally, the relationship between DRX volume fraction and deformation parameter is verified based on microstructure evolution, which is consistent with the theoretical prediction.https://www.mdpi.com/2075-4701/11/11/1696Mg-Li alloydeformation behaviordynamic recrystallizationtwinning |
| spellingShingle | Xiaoyan Feng Xue Pang Xu He Ruihong Li Zili Jin Huiping Ren Tingting Liu Deformation Behavior and Dynamic Recrystallization of Mg-1Li-1Al Alloy Metals Mg-Li alloy deformation behavior dynamic recrystallization twinning |
| title | Deformation Behavior and Dynamic Recrystallization of Mg-1Li-1Al Alloy |
| title_full | Deformation Behavior and Dynamic Recrystallization of Mg-1Li-1Al Alloy |
| title_fullStr | Deformation Behavior and Dynamic Recrystallization of Mg-1Li-1Al Alloy |
| title_full_unstemmed | Deformation Behavior and Dynamic Recrystallization of Mg-1Li-1Al Alloy |
| title_short | Deformation Behavior and Dynamic Recrystallization of Mg-1Li-1Al Alloy |
| title_sort | deformation behavior and dynamic recrystallization of mg 1li 1al alloy |
| topic | Mg-Li alloy deformation behavior dynamic recrystallization twinning |
| url | https://www.mdpi.com/2075-4701/11/11/1696 |
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