Crystal orientation-induced Al grain coalescence coarsening during isothermal semisolid annealing of Al-15 wt% Cu alloys under high magnetic fields
Al-15 wt% Cu binary alloys were isothermally annealed in a semisolid state with and without a 10 T magnetic field. The influence of the magnetic field on the 2D morphology and 3D distribution of α-Al grains was investigated. The coarsening mechanism under a high magnetic field was proposed based on...
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Elsevier
2025-03-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785425005186 |
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| author | Siyu Zhang Tie Liu Baoze Zhang Alexander Dahlström Sinuo Li Kai Wang Wangzhong Mu Qiang Wang |
| author_facet | Siyu Zhang Tie Liu Baoze Zhang Alexander Dahlström Sinuo Li Kai Wang Wangzhong Mu Qiang Wang |
| author_sort | Siyu Zhang |
| collection | DOAJ |
| description | Al-15 wt% Cu binary alloys were isothermally annealed in a semisolid state with and without a 10 T magnetic field. The influence of the magnetic field on the 2D morphology and 3D distribution of α-Al grains was investigated. The coarsening mechanism under a high magnetic field was proposed based on microstructural analysis, coarsening kinetics calculations, and interfacial energy calculations. The size of the α-Al grains was increased, and the coarsening rate was significantly accelerated by the magnetic field. Meanwhile, more α-Al grains contacted each other and started coalescing. The grain size distribution revealed that the coarsening mechanism shifted from Ostwald ripening at 0 T to a combination of the Ostwald ripening and migration-coalescence at 10 T. The accelerated coarsening rate may be attributed to an increase in interfacial energy from 0.143 to 0.213 J m−2 under the high magnetic field. Significant Cu clustering was observed between coalesced grains at 10 T, which could further demonstrate the accelerated coarsening rate. Additionally, the magnetic field induced the rotation of adjacent grains via magnetic torque, reducing their misorientation and subsequently enhancing their coalescence. This study elucidated the mechanism of orientation-induced grains coarsening under a high magnetic field, providing a novel methodology for controlling metallic materials fabrication processes which undergo grains coarsening using magnetic fields. |
| format | Article |
| id | doaj-art-4b84f5b3801f48e29adef31a8b1ae8df |
| institution | OA Journals |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-4b84f5b3801f48e29adef31a8b1ae8df2025-08-20T01:57:52ZengElsevierJournal of Materials Research and Technology2238-78542025-03-01356825683510.1016/j.jmrt.2025.03.009Crystal orientation-induced Al grain coalescence coarsening during isothermal semisolid annealing of Al-15 wt% Cu alloys under high magnetic fieldsSiyu Zhang0Tie Liu1Baoze Zhang2Alexander Dahlström3Sinuo Li4Kai Wang5Wangzhong Mu6Qiang Wang7Key Laboratory of Electromagnetic Processing of Materials (Ministry of Education), Northeastern University, Shenyang, 110819, China; School of Materials Science and Engineering, 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, China; School of Metallurgy, Northeastern University, Shenyang, 110819, ChinaDepartment of Materials Science and Engineering, KTH Royal Institute of Technology, Stockholm, 10044, SwedenKey Laboratory of Electromagnetic Processing of Materials (Ministry of Education), Northeastern University, Shenyang, 110819, China; School of Materials Science and Engineering, Northeastern University, Shenyang, 110819, ChinaKey Laboratory of Electromagnetic Processing of Materials (Ministry of Education), Northeastern University, Shenyang, 110819, ChinaDepartment of Materials Science and Engineering, KTH Royal Institute of Technology, Stockholm, 10044, Sweden; Engineering Materials, Department of Engineering Science and Mathematics, Luleå University of Technology, Luleå, 97187, Sweden; Corresponding author. Engineering Materials, Department of Engineering Science and Mathematics, Luleå University of Technology, Luleå, 97187, Sweden.Key Laboratory of Electromagnetic Processing of Materials (Ministry of Education), Northeastern University, Shenyang, 110819, ChinaAl-15 wt% Cu binary alloys were isothermally annealed in a semisolid state with and without a 10 T magnetic field. The influence of the magnetic field on the 2D morphology and 3D distribution of α-Al grains was investigated. The coarsening mechanism under a high magnetic field was proposed based on microstructural analysis, coarsening kinetics calculations, and interfacial energy calculations. The size of the α-Al grains was increased, and the coarsening rate was significantly accelerated by the magnetic field. Meanwhile, more α-Al grains contacted each other and started coalescing. The grain size distribution revealed that the coarsening mechanism shifted from Ostwald ripening at 0 T to a combination of the Ostwald ripening and migration-coalescence at 10 T. The accelerated coarsening rate may be attributed to an increase in interfacial energy from 0.143 to 0.213 J m−2 under the high magnetic field. Significant Cu clustering was observed between coalesced grains at 10 T, which could further demonstrate the accelerated coarsening rate. Additionally, the magnetic field induced the rotation of adjacent grains via magnetic torque, reducing their misorientation and subsequently enhancing their coalescence. This study elucidated the mechanism of orientation-induced grains coarsening under a high magnetic field, providing a novel methodology for controlling metallic materials fabrication processes which undergo grains coarsening using magnetic fields.http://www.sciencedirect.com/science/article/pii/S2238785425005186Al–Cu alloysCoarseningHigh magnetic fieldOstwald ripeningCoalescence |
| spellingShingle | Siyu Zhang Tie Liu Baoze Zhang Alexander Dahlström Sinuo Li Kai Wang Wangzhong Mu Qiang Wang Crystal orientation-induced Al grain coalescence coarsening during isothermal semisolid annealing of Al-15 wt% Cu alloys under high magnetic fields Journal of Materials Research and Technology Al–Cu alloys Coarsening High magnetic field Ostwald ripening Coalescence |
| title | Crystal orientation-induced Al grain coalescence coarsening during isothermal semisolid annealing of Al-15 wt% Cu alloys under high magnetic fields |
| title_full | Crystal orientation-induced Al grain coalescence coarsening during isothermal semisolid annealing of Al-15 wt% Cu alloys under high magnetic fields |
| title_fullStr | Crystal orientation-induced Al grain coalescence coarsening during isothermal semisolid annealing of Al-15 wt% Cu alloys under high magnetic fields |
| title_full_unstemmed | Crystal orientation-induced Al grain coalescence coarsening during isothermal semisolid annealing of Al-15 wt% Cu alloys under high magnetic fields |
| title_short | Crystal orientation-induced Al grain coalescence coarsening during isothermal semisolid annealing of Al-15 wt% Cu alloys under high magnetic fields |
| title_sort | crystal orientation induced al grain coalescence coarsening during isothermal semisolid annealing of al 15 wt cu alloys under high magnetic fields |
| topic | Al–Cu alloys Coarsening High magnetic field Ostwald ripening Coalescence |
| url | http://www.sciencedirect.com/science/article/pii/S2238785425005186 |
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