Effect of circumferential strain rate on dynamic recrystallization and texture of Mg-13Gd-4Y-2Zn-0.5Zr alloy during rotary backward extrusion
Gleeble-3500 thermal simulator was applied to realize the rotary backward extrusion forming of Mg-13Gd-4Y-2Zn-0.5Zr (wt%) alloy at different circumferential strain rate from 0.009 s−1 to 0.027 s−1 at 400 °C and the dynamic recrystallization mechanism and texture evolution were studied. The results s...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2020-12-01
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| Series: | Journal of Magnesium and Alloys |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2213956720301201 |
| _version_ | 1827279345397268480 |
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| author | Yingze Meng Jianmin Yu Guanshi Zhang Yaojin Wu Zhimin Zhang Zheng Shi |
| author_facet | Yingze Meng Jianmin Yu Guanshi Zhang Yaojin Wu Zhimin Zhang Zheng Shi |
| author_sort | Yingze Meng |
| collection | DOAJ |
| description | Gleeble-3500 thermal simulator was applied to realize the rotary backward extrusion forming of Mg-13Gd-4Y-2Zn-0.5Zr (wt%) alloy at different circumferential strain rate from 0.009 s−1 to 0.027 s−1 at 400 °C and the dynamic recrystallization mechanism and texture evolution were studied. The results show that the grain size of the alloy was obviously refined after rotary backward extrusion. As the circumferential strain rate increased, the dynamic recrystallization fraction gradually increased causing the grain size decreased and the distribution of microstructure became more uniform. At the same time, the texture of {0001}, {10-10}, {11-20} was weakened and the grain orientation distribution became more random. With the increase of circumferential strain rate, the discontinuous dynamic recrystallization mechanism became dominant, which promoted the weakening of texture and grain refinement of the alloy. |
| first_indexed | 2024-04-24T08:17:29Z |
| format | Article |
| id | doaj.art-b8b524d80a6b4b52b93adc0a11711fe2 |
| institution | Directory Open Access Journal |
| issn | 2213-9567 |
| language | English |
| last_indexed | 2024-04-24T08:17:29Z |
| publishDate | 2020-12-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Journal of Magnesium and Alloys |
| spelling | doaj.art-b8b524d80a6b4b52b93adc0a11711fe22024-04-17T03:05:33ZengKeAi Communications Co., Ltd.Journal of Magnesium and Alloys2213-95672020-12-018412281237Effect of circumferential strain rate on dynamic recrystallization and texture of Mg-13Gd-4Y-2Zn-0.5Zr alloy during rotary backward extrusionYingze Meng0Jianmin Yu1Guanshi Zhang2Yaojin Wu3Zhimin Zhang4Zheng Shi5College of Mechanical and Electrical Engineering, North University of China, Taiyuan 030051, ChinaCollege of Materials Science and Engineering, North University of China, xueyuan road 3,Taiyuan, Shanxi, Taiyuan 030051, China; Corresponding author.iCollege of Materials Science and Engineering, North University of China, xueyuan road 3,Taiyuan, Shanxi, Taiyuan 030051, ChinaCollege of Mechanical and Electrical Engineering, North University of China, Taiyuan 030051, ChinaCollege of Materials Science and Engineering, North University of China, xueyuan road 3,Taiyuan, Shanxi, Taiyuan 030051, ChinaCollege of Materials Science and Engineering, North University of China, xueyuan road 3,Taiyuan, Shanxi, Taiyuan 030051, ChinaGleeble-3500 thermal simulator was applied to realize the rotary backward extrusion forming of Mg-13Gd-4Y-2Zn-0.5Zr (wt%) alloy at different circumferential strain rate from 0.009 s−1 to 0.027 s−1 at 400 °C and the dynamic recrystallization mechanism and texture evolution were studied. The results show that the grain size of the alloy was obviously refined after rotary backward extrusion. As the circumferential strain rate increased, the dynamic recrystallization fraction gradually increased causing the grain size decreased and the distribution of microstructure became more uniform. At the same time, the texture of {0001}, {10-10}, {11-20} was weakened and the grain orientation distribution became more random. With the increase of circumferential strain rate, the discontinuous dynamic recrystallization mechanism became dominant, which promoted the weakening of texture and grain refinement of the alloy.http://www.sciencedirect.com/science/article/pii/S2213956720301201Mg-Gd-Y-Zn-Zr alloyRotary backward extrusionDynamic recrystallizationTexture |
| spellingShingle | Yingze Meng Jianmin Yu Guanshi Zhang Yaojin Wu Zhimin Zhang Zheng Shi Effect of circumferential strain rate on dynamic recrystallization and texture of Mg-13Gd-4Y-2Zn-0.5Zr alloy during rotary backward extrusion Journal of Magnesium and Alloys Mg-Gd-Y-Zn-Zr alloy Rotary backward extrusion Dynamic recrystallization Texture |
| title | Effect of circumferential strain rate on dynamic recrystallization and texture of Mg-13Gd-4Y-2Zn-0.5Zr alloy during rotary backward extrusion |
| title_full | Effect of circumferential strain rate on dynamic recrystallization and texture of Mg-13Gd-4Y-2Zn-0.5Zr alloy during rotary backward extrusion |
| title_fullStr | Effect of circumferential strain rate on dynamic recrystallization and texture of Mg-13Gd-4Y-2Zn-0.5Zr alloy during rotary backward extrusion |
| title_full_unstemmed | Effect of circumferential strain rate on dynamic recrystallization and texture of Mg-13Gd-4Y-2Zn-0.5Zr alloy during rotary backward extrusion |
| title_short | Effect of circumferential strain rate on dynamic recrystallization and texture of Mg-13Gd-4Y-2Zn-0.5Zr alloy during rotary backward extrusion |
| title_sort | effect of circumferential strain rate on dynamic recrystallization and texture of mg 13gd 4y 2zn 0 5zr alloy during rotary backward extrusion |
| topic | Mg-Gd-Y-Zn-Zr alloy Rotary backward extrusion Dynamic recrystallization Texture |
| url | http://www.sciencedirect.com/science/article/pii/S2213956720301201 |
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