The hot deformation behavior and microstructural evolution of as-cast Mg–2Zn–0.5Mn–0.2Ca–0.3Nd–0.7La alloy
The microstructure and texture evolutions of the Mg–2Zn–0.5Mn–0.2Ca–0.3Nd–0.7La alloy were investigated by hot compression tests, which carried out in the temperatures range of 250–400 °C and strain rates range of 0.001–1 s−1. The thermal deformation behavior of the alloy was reflected by the hyperb...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-01-01
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| Series: | Journal of Materials Research and Technology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785422019172 |
| _version_ | 1828054143885901824 |
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| author | Jie Mi Deqing Ma Shiyu Luan Peipeng Jin Lijia Chen Xin Che Xiaoqiang Li |
| author_facet | Jie Mi Deqing Ma Shiyu Luan Peipeng Jin Lijia Chen Xin Che Xiaoqiang Li |
| author_sort | Jie Mi |
| collection | DOAJ |
| description | The microstructure and texture evolutions of the Mg–2Zn–0.5Mn–0.2Ca–0.3Nd–0.7La alloy were investigated by hot compression tests, which carried out in the temperatures range of 250–400 °C and strain rates range of 0.001–1 s−1. The thermal deformation behavior of the alloy was reflected by the hyperbolic sine function relationship, which was applicable to all stresses conditions due to the calculated value of α∗σp was 1.0. The thermal processing map based upon the dynamic material model was built. In addition, the suitable and unsuitable hot working regions were analyzed combined with microstructures. The results show that the dynamic recrystallization (DRX) mechanism of the hot compression deformation microstructure of the alloy was discontinuous dynamic recrystallization (DDRX). There were plenty of extension twins in some coarse deformed grains and these twins form a new <0001>//TD texture, which led to the weakening the <0001>//CD texture. |
| first_indexed | 2024-04-10T20:18:11Z |
| format | Article |
| id | doaj.art-c689a7b4d90a404daf8beecdf9e4aca3 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-04-10T20:18:11Z |
| publishDate | 2023-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-c689a7b4d90a404daf8beecdf9e4aca32023-01-26T04:46:04ZengElsevierJournal of Materials Research and Technology2238-78542023-01-012215331545The hot deformation behavior and microstructural evolution of as-cast Mg–2Zn–0.5Mn–0.2Ca–0.3Nd–0.7La alloyJie Mi0Deqing Ma1Shiyu Luan2Peipeng Jin3Lijia Chen4Xin Che5Xiaoqiang Li6School of Material Science and Engineering, Shenyang University of Technology, Shenyang, 110870, ChinaSchool of Mechanical Engineering, Qinghai University, Xining 810016, ChinaSchool of Material Science and Engineering, Shenyang University of Technology, Shenyang, 110870, ChinaSchool of Mechanical Engineering, Qinghai University, Xining 810016, China; School of Material Science and Engineering, Shenyang University of Technology, Shenyang, 110870, China; Corresponding author.School of Material Science and Engineering, Shenyang University of Technology, Shenyang, 110870, ChinaSchool of Material Science and Engineering, Shenyang University of Technology, Shenyang, 110870, ChinaSchool of Material Science and Engineering, Lanzhou University of Technology, Lanzhou 730050, ChinaThe microstructure and texture evolutions of the Mg–2Zn–0.5Mn–0.2Ca–0.3Nd–0.7La alloy were investigated by hot compression tests, which carried out in the temperatures range of 250–400 °C and strain rates range of 0.001–1 s−1. The thermal deformation behavior of the alloy was reflected by the hyperbolic sine function relationship, which was applicable to all stresses conditions due to the calculated value of α∗σp was 1.0. The thermal processing map based upon the dynamic material model was built. In addition, the suitable and unsuitable hot working regions were analyzed combined with microstructures. The results show that the dynamic recrystallization (DRX) mechanism of the hot compression deformation microstructure of the alloy was discontinuous dynamic recrystallization (DDRX). There were plenty of extension twins in some coarse deformed grains and these twins form a new <0001>//TD texture, which led to the weakening the <0001>//CD texture.http://www.sciencedirect.com/science/article/pii/S2238785422019172Mg alloyHot deformationMicrostructure evolutionConstitutive equationTextureDiscontinuous dynamic recrystallization |
| spellingShingle | Jie Mi Deqing Ma Shiyu Luan Peipeng Jin Lijia Chen Xin Che Xiaoqiang Li The hot deformation behavior and microstructural evolution of as-cast Mg–2Zn–0.5Mn–0.2Ca–0.3Nd–0.7La alloy Journal of Materials Research and Technology Mg alloy Hot deformation Microstructure evolution Constitutive equation Texture Discontinuous dynamic recrystallization |
| title | The hot deformation behavior and microstructural evolution of as-cast Mg–2Zn–0.5Mn–0.2Ca–0.3Nd–0.7La alloy |
| title_full | The hot deformation behavior and microstructural evolution of as-cast Mg–2Zn–0.5Mn–0.2Ca–0.3Nd–0.7La alloy |
| title_fullStr | The hot deformation behavior and microstructural evolution of as-cast Mg–2Zn–0.5Mn–0.2Ca–0.3Nd–0.7La alloy |
| title_full_unstemmed | The hot deformation behavior and microstructural evolution of as-cast Mg–2Zn–0.5Mn–0.2Ca–0.3Nd–0.7La alloy |
| title_short | The hot deformation behavior and microstructural evolution of as-cast Mg–2Zn–0.5Mn–0.2Ca–0.3Nd–0.7La alloy |
| title_sort | hot deformation behavior and microstructural evolution of as cast mg 2zn 0 5mn 0 2ca 0 3nd 0 7la alloy |
| topic | Mg alloy Hot deformation Microstructure evolution Constitutive equation Texture Discontinuous dynamic recrystallization |
| url | http://www.sciencedirect.com/science/article/pii/S2238785422019172 |
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