A novel approach to improve the macro-segregation defect and mechanical properties of Al–Mg–Mn aluminum alloys during twin-roll continuous casting
In this paper, the microstructure and properties of Al–Mg–Mn alloy slabs with different thicknesses by twin-roll continuous casting were investigated. Under the twin-roll continuous casting process, the alloy melt conducts directional crystallization due to the near-horizontal heat transfer directio...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
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/S2238785422019706 |
| _version_ | 1797943004513697792 |
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| author | Jingyu Zhang Haotian Yuan Tao Zhang Jinyu Fu Guangming Xu Yong Li |
| author_facet | Jingyu Zhang Haotian Yuan Tao Zhang Jinyu Fu Guangming Xu Yong Li |
| author_sort | Jingyu Zhang |
| collection | DOAJ |
| description | In this paper, the microstructure and properties of Al–Mg–Mn alloy slabs with different thicknesses by twin-roll continuous casting were investigated. Under the twin-roll continuous casting process, the alloy melt conducts directional crystallization due to the near-horizontal heat transfer direction. In this way, the growth direction of the columnar crystal is changed to improve the shape and size of the sump and effectively eliminate the central segregation defect. Additionally, the improvement of segregation defects was more significant with the increase in thickness. As low angle grain boundary content and solution degree increased, the electrical conductivity decreased, the hardness increased, and the phenomenon of hard-soft-hard core-shell was significantly improved. |
| first_indexed | 2024-04-10T20:17:03Z |
| format | Article |
| id | doaj.art-2eb49e9935654f7684c888897d6380f7 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-04-10T20:17:03Z |
| publishDate | 2023-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-2eb49e9935654f7684c888897d6380f72023-01-26T04:46:18ZengElsevierJournal of Materials Research and Technology2238-78542023-01-012231703179A novel approach to improve the macro-segregation defect and mechanical properties of Al–Mg–Mn aluminum alloys during twin-roll continuous castingJingyu Zhang0Haotian Yuan1Tao Zhang2Jinyu Fu3Guangming Xu4Yong Li5Key Laboratory of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang, 110819, ChinaKey Laboratory of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang, 110819, ChinaKey Laboratory of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang, 110819, ChinaKey Laboratory of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang, 110819, China; Corresponding author.Key Laboratory of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang, 110819, ChinaState Key Laboratory of Rolling and Automation, Northeastern University, Shenyang, 110819, ChinaIn this paper, the microstructure and properties of Al–Mg–Mn alloy slabs with different thicknesses by twin-roll continuous casting were investigated. Under the twin-roll continuous casting process, the alloy melt conducts directional crystallization due to the near-horizontal heat transfer direction. In this way, the growth direction of the columnar crystal is changed to improve the shape and size of the sump and effectively eliminate the central segregation defect. Additionally, the improvement of segregation defects was more significant with the increase in thickness. As low angle grain boundary content and solution degree increased, the electrical conductivity decreased, the hardness increased, and the phenomenon of hard-soft-hard core-shell was significantly improved.http://www.sciencedirect.com/science/article/pii/S2238785422019706Grain boundariesMacro-segregationAl–Mg–Mn alloyTwin-roll continuous casting |
| spellingShingle | Jingyu Zhang Haotian Yuan Tao Zhang Jinyu Fu Guangming Xu Yong Li A novel approach to improve the macro-segregation defect and mechanical properties of Al–Mg–Mn aluminum alloys during twin-roll continuous casting Journal of Materials Research and Technology Grain boundaries Macro-segregation Al–Mg–Mn alloy Twin-roll continuous casting |
| title | A novel approach to improve the macro-segregation defect and mechanical properties of Al–Mg–Mn aluminum alloys during twin-roll continuous casting |
| title_full | A novel approach to improve the macro-segregation defect and mechanical properties of Al–Mg–Mn aluminum alloys during twin-roll continuous casting |
| title_fullStr | A novel approach to improve the macro-segregation defect and mechanical properties of Al–Mg–Mn aluminum alloys during twin-roll continuous casting |
| title_full_unstemmed | A novel approach to improve the macro-segregation defect and mechanical properties of Al–Mg–Mn aluminum alloys during twin-roll continuous casting |
| title_short | A novel approach to improve the macro-segregation defect and mechanical properties of Al–Mg–Mn aluminum alloys during twin-roll continuous casting |
| title_sort | novel approach to improve the macro segregation defect and mechanical properties of al mg mn aluminum alloys during twin roll continuous casting |
| topic | Grain boundaries Macro-segregation Al–Mg–Mn alloy Twin-roll continuous casting |
| url | http://www.sciencedirect.com/science/article/pii/S2238785422019706 |
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