Quasi-in-situ investigation on recrystallization behavior of an Al–Mg-Sc-Zr alloy under different homogenization processes
The influence of different homogenization treatments on the recrystallization behavior of Al–Mg-Sc-Zr alloys during annealing was examined using scanning electron microscopy, transmission electron microscopy and quasi-in-situ electron backscatter diffraction. The results indicate that during the ini...
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Elsevier
2025-09-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785425019994 |
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| author | Yi Su Lipeng Ding Yu Zhang Chenglin Wang Yaoyao Weng Linzhong Zhuang Zhihong Jia |
| author_facet | Yi Su Lipeng Ding Yu Zhang Chenglin Wang Yaoyao Weng Linzhong Zhuang Zhihong Jia |
| author_sort | Yi Su |
| collection | DOAJ |
| description | The influence of different homogenization treatments on the recrystallization behavior of Al–Mg-Sc-Zr alloys during annealing was examined using scanning electron microscopy, transmission electron microscopy and quasi-in-situ electron backscatter diffraction. The results indicate that during the initial annealing period, due to a higher density of Al3(Sc, Zr) dispersoids, the one-step homogenized sample (350 °C/6 h) exhibits superior recrystallization resistance and thus a finer grain distribution compared to the three-step homogenized sample (270 °C/6 h + 350 °C/6 h + 500 °C/8 h). However, with prolonged annealing, the one-step homogenized sample exhibits an accelerated recrystallization rate, resulting in a larger grain size than the three-step homogenized sample. This phenomenon is mainly attributed to the rapid coarsening of Al3(Sc, Zr) dispersoids, which weakens their recrystallization suppression effect and facilitates the preferential growth of S-oriented grains, thereby promoting the grain coarsening. In contrast, the Al3(Sc, Zr) dispersoids in the three-step homogenized sample undergo only slight coarsening, enabling steady growth of the recrystallized grains. Furthermore, the Q orientation serves as the preferred nucleation site for grains after annealing for 5 min. The discovery provides new insights for controlling recrystallization by optimizing second phase particles and annealing processes. |
| format | Article |
| id | doaj-art-22f85dcab8f34ca4be117defeecba422 |
| institution | Kabale University |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-22f85dcab8f34ca4be117defeecba4222025-08-20T03:36:26ZengElsevierJournal of Materials Research and Technology2238-78542025-09-01381745176010.1016/j.jmrt.2025.08.047Quasi-in-situ investigation on recrystallization behavior of an Al–Mg-Sc-Zr alloy under different homogenization processesYi Su0Lipeng Ding1Yu Zhang2Chenglin Wang3Yaoyao Weng4Linzhong Zhuang5Zhihong Jia6Key Laboratory for Light-Weight Materials, Nanjing Tech University, Nanjing, 211816, China; State Key Laboratory for Advanced Metals and Materials, University of Science and Technology, Beijing, Beijing, 100083, China; Materials Academy, JITRI, Suzhou, 215000, ChinaKey Laboratory for Light-Weight Materials, Nanjing Tech University, Nanjing, 211816, China; Materials Academy, JITRI, Suzhou, 215000, China; Corresponding author. Key Laboratory for Light-Weight Materials, Nanjing Tech University, Nanjing, 211816, China.State Key Laboratory for Advanced Metals and Materials, University of Science and Technology, Beijing, Beijing, 100083, ChinaKey Laboratory for Light-Weight Materials, Nanjing Tech University, Nanjing, 211816, ChinaSchool of Materials Science and Engineering, Nanjing Institute of Technology, Nanjing, 211167, ChinaState Key Laboratory for Advanced Metals and Materials, University of Science and Technology, Beijing, Beijing, 100083, China; Corresponding author.Key Laboratory for Light-Weight Materials, Nanjing Tech University, Nanjing, 211816, China; Materials Academy, JITRI, Suzhou, 215000, China; Corresponding author. Key Laboratory for Light-Weight Materials, Nanjing Tech University, Nanjing, 211816, China.The influence of different homogenization treatments on the recrystallization behavior of Al–Mg-Sc-Zr alloys during annealing was examined using scanning electron microscopy, transmission electron microscopy and quasi-in-situ electron backscatter diffraction. The results indicate that during the initial annealing period, due to a higher density of Al3(Sc, Zr) dispersoids, the one-step homogenized sample (350 °C/6 h) exhibits superior recrystallization resistance and thus a finer grain distribution compared to the three-step homogenized sample (270 °C/6 h + 350 °C/6 h + 500 °C/8 h). However, with prolonged annealing, the one-step homogenized sample exhibits an accelerated recrystallization rate, resulting in a larger grain size than the three-step homogenized sample. This phenomenon is mainly attributed to the rapid coarsening of Al3(Sc, Zr) dispersoids, which weakens their recrystallization suppression effect and facilitates the preferential growth of S-oriented grains, thereby promoting the grain coarsening. In contrast, the Al3(Sc, Zr) dispersoids in the three-step homogenized sample undergo only slight coarsening, enabling steady growth of the recrystallized grains. Furthermore, the Q orientation serves as the preferred nucleation site for grains after annealing for 5 min. The discovery provides new insights for controlling recrystallization by optimizing second phase particles and annealing processes.http://www.sciencedirect.com/science/article/pii/S2238785425019994Al–Mg-Sc-Zr alloysDispersoidsHomogenizationRecrystallization |
| spellingShingle | Yi Su Lipeng Ding Yu Zhang Chenglin Wang Yaoyao Weng Linzhong Zhuang Zhihong Jia Quasi-in-situ investigation on recrystallization behavior of an Al–Mg-Sc-Zr alloy under different homogenization processes Journal of Materials Research and Technology Al–Mg-Sc-Zr alloys Dispersoids Homogenization Recrystallization |
| title | Quasi-in-situ investigation on recrystallization behavior of an Al–Mg-Sc-Zr alloy under different homogenization processes |
| title_full | Quasi-in-situ investigation on recrystallization behavior of an Al–Mg-Sc-Zr alloy under different homogenization processes |
| title_fullStr | Quasi-in-situ investigation on recrystallization behavior of an Al–Mg-Sc-Zr alloy under different homogenization processes |
| title_full_unstemmed | Quasi-in-situ investigation on recrystallization behavior of an Al–Mg-Sc-Zr alloy under different homogenization processes |
| title_short | Quasi-in-situ investigation on recrystallization behavior of an Al–Mg-Sc-Zr alloy under different homogenization processes |
| title_sort | quasi in situ investigation on recrystallization behavior of an al mg sc zr alloy under different homogenization processes |
| topic | Al–Mg-Sc-Zr alloys Dispersoids Homogenization Recrystallization |
| url | http://www.sciencedirect.com/science/article/pii/S2238785425019994 |
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