The evolution of microstructure and texture of AZ80 Mg alloy cup-shaped pieces processed by rotating backward extrusion
This study proposed an effective plastic deformation technique, rotating backward extrusion (RBE), for producing high performance AZ80 magnesium alloy cup-shaped pieces. The RBE process was carried on the Gleeble-3500 test machine at 653 K, and the conventional backward extrusion (CBE) was also cond...
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| Format: | Article |
| Language: | English |
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KeAi Communications Co., Ltd.
2021-09-01
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| Series: | Journal of Magnesium and Alloys |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2213956720302632 |
| _version_ | 1797203444734361600 |
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| author | Xin Che Qiang Wang Beibei Dong Mu Meng Zhi Gao Kai Liu Jin Ma Fulai Yang Zhiming Zhang |
| author_facet | Xin Che Qiang Wang Beibei Dong Mu Meng Zhi Gao Kai Liu Jin Ma Fulai Yang Zhiming Zhang |
| author_sort | Xin Che |
| collection | DOAJ |
| description | This study proposed an effective plastic deformation technique, rotating backward extrusion (RBE), for producing high performance AZ80 magnesium alloy cup-shaped pieces. The RBE process was carried on the Gleeble-3500 test machine at 653 K, and the conventional backward extrusion (CBE) was also conducted for comparison. A detailed microstructure analysis was performed using the optical microscopy (OM) and electron back-scatter diffraction (EBSD). The results shown that the equivalent strain and deformation uniformity of the cup pieces could be substantially increased by the RBE process compared with the CBE process. Furthermore, the RBE process could significantly improve the grain refining capacity and the proportion of dynamic recrystallization (DRX), of which the maximum reduction of grain size was 88.60%, and the maximum increase of DRX proportion was 55.30% in the cup bottom. The main deformation mechanism of the RBE process was the discontinuous DRX (DDRX), while the continuous DRX (CDRX) was also occurred in the cup transition. Compared with the CBE sample, the texture of the cup bottom was weakened for the RBE sample. The microhardness value of the RBE sample was higher than that of the CBE sample, which can be attributed to the grain refinement strengthening. |
| first_indexed | 2024-04-24T08:19:26Z |
| format | Article |
| id | doaj.art-946191e392034ef8a6b7b0e6a43404d7 |
| institution | Directory Open Access Journal |
| issn | 2213-9567 |
| language | English |
| last_indexed | 2024-04-24T08:19:26Z |
| publishDate | 2021-09-01 |
| publisher | KeAi Communications Co., Ltd. |
| record_format | Article |
| series | Journal of Magnesium and Alloys |
| spelling | doaj.art-946191e392034ef8a6b7b0e6a43404d72024-04-17T02:18:55ZengKeAi Communications Co., Ltd.Journal of Magnesium and Alloys2213-95672021-09-019516771691The evolution of microstructure and texture of AZ80 Mg alloy cup-shaped pieces processed by rotating backward extrusionXin Che0Qiang Wang1Beibei Dong2Mu Meng3Zhi Gao4Kai Liu5Jin Ma6Fulai Yang7Zhiming Zhang8College of Materials Science and Engineering, North University of China, 3 Xueyuan Road, Taiyuan 030051, PR ChinaCorresponding authors.; College of Materials Science and Engineering, North University of China, 3 Xueyuan Road, Taiyuan 030051, PR ChinaCollege of Materials Science and Engineering, North University of China, 3 Xueyuan Road, Taiyuan 030051, PR ChinaCollege of Materials Science and Engineering, North University of China, 3 Xueyuan Road, Taiyuan 030051, PR ChinaCollege of Materials Science and Engineering, North University of China, 3 Xueyuan Road, Taiyuan 030051, PR ChinaCollege of Materials Science and Engineering, North University of China, 3 Xueyuan Road, Taiyuan 030051, PR ChinaCollege of Materials Science and Engineering, North University of China, 3 Xueyuan Road, Taiyuan 030051, PR ChinaCollege of Materials Science and Engineering, North University of China, 3 Xueyuan Road, Taiyuan 030051, PR ChinaCorresponding authors.; College of Materials Science and Engineering, North University of China, 3 Xueyuan Road, Taiyuan 030051, PR ChinaThis study proposed an effective plastic deformation technique, rotating backward extrusion (RBE), for producing high performance AZ80 magnesium alloy cup-shaped pieces. The RBE process was carried on the Gleeble-3500 test machine at 653 K, and the conventional backward extrusion (CBE) was also conducted for comparison. A detailed microstructure analysis was performed using the optical microscopy (OM) and electron back-scatter diffraction (EBSD). The results shown that the equivalent strain and deformation uniformity of the cup pieces could be substantially increased by the RBE process compared with the CBE process. Furthermore, the RBE process could significantly improve the grain refining capacity and the proportion of dynamic recrystallization (DRX), of which the maximum reduction of grain size was 88.60%, and the maximum increase of DRX proportion was 55.30% in the cup bottom. The main deformation mechanism of the RBE process was the discontinuous DRX (DDRX), while the continuous DRX (CDRX) was also occurred in the cup transition. Compared with the CBE sample, the texture of the cup bottom was weakened for the RBE sample. The microhardness value of the RBE sample was higher than that of the CBE sample, which can be attributed to the grain refinement strengthening.http://www.sciencedirect.com/science/article/pii/S2213956720302632Rotating backward extrusionAZ80 magnesium alloyDynamic recrystallizatonTexture |
| spellingShingle | Xin Che Qiang Wang Beibei Dong Mu Meng Zhi Gao Kai Liu Jin Ma Fulai Yang Zhiming Zhang The evolution of microstructure and texture of AZ80 Mg alloy cup-shaped pieces processed by rotating backward extrusion Journal of Magnesium and Alloys Rotating backward extrusion AZ80 magnesium alloy Dynamic recrystallizaton Texture |
| title | The evolution of microstructure and texture of AZ80 Mg alloy cup-shaped pieces processed by rotating backward extrusion |
| title_full | The evolution of microstructure and texture of AZ80 Mg alloy cup-shaped pieces processed by rotating backward extrusion |
| title_fullStr | The evolution of microstructure and texture of AZ80 Mg alloy cup-shaped pieces processed by rotating backward extrusion |
| title_full_unstemmed | The evolution of microstructure and texture of AZ80 Mg alloy cup-shaped pieces processed by rotating backward extrusion |
| title_short | The evolution of microstructure and texture of AZ80 Mg alloy cup-shaped pieces processed by rotating backward extrusion |
| title_sort | evolution of microstructure and texture of az80 mg alloy cup shaped pieces processed by rotating backward extrusion |
| topic | Rotating backward extrusion AZ80 magnesium alloy Dynamic recrystallizaton Texture |
| url | http://www.sciencedirect.com/science/article/pii/S2213956720302632 |
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