The effects of deformation parameters on the second phases and softening behavior of Al–Zn–Mg–Cu alloys
This study investigates the effects of deformation parameters on the second phase and softening behavior of Al–Zn–Mg–Cu alloy. The results are as follows: Firstly, the area fraction of the intermetallic phase fluctuates between 0.704 ± 0.092% and 1.886 ± 0.231% with varying deformation parameters. S...
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Elsevier
2024-11-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785424022348 |
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| author | Rensong Huang Peng Sun Liexing Zhou Yelin Zhang Shanju Zheng Xiaohong Yuan Yonghua Duan Yawei Peng Mengnie Li |
| author_facet | Rensong Huang Peng Sun Liexing Zhou Yelin Zhang Shanju Zheng Xiaohong Yuan Yonghua Duan Yawei Peng Mengnie Li |
| author_sort | Rensong Huang |
| collection | DOAJ |
| description | This study investigates the effects of deformation parameters on the second phase and softening behavior of Al–Zn–Mg–Cu alloy. The results are as follows: Firstly, the area fraction of the intermetallic phase fluctuates between 0.704 ± 0.092% and 1.886 ± 0.231% with varying deformation parameters. Secondly, in the temperature range of 270 °C to 430 °C, the area fraction of the η[Mg(Zn, Al, Cu)2] phase first increases and then decreases with rising deformation temperature, and gradually increases with decreasing strain rate. The highest area fraction is 12.613 ± 0.340% at 350 °C/0.001 s−1, and the lowest is 0.366 ± 0.068% at 470 °C/0.001 s−1. Additionally, the coarsening and dissolution of the η[Mg(Zn, Al, Cu)2] phase accelerate the dynamic recovery softening of the alloy. The sample at 350 °C/0.001 s−1 shows a low-angle grain boundary (LAGBs) percentage of 97.83% and a minimum average dislocation density of 8.493 × 102 μm2. Furthermore, at 470 °C/0.001 s−1, the Al7Cu2Fe phase has a weaker effect on stimulating nucleation and recrystallization, while the most significant promotion occurs at 430 °C/0.001 s−1. In the range of 270 °C to 350 °C and 0.1 s−1 to 0.5 s−1, the Al7Cu2Fe phase mainly stimulates the formation of sub-grains. These findings offer valuable insights for refining the grain size of alloys by regulating the content of the second phase during hot deformation. |
| format | Article |
| id | doaj-art-4dd192f17951498bbd71a177099ea847 |
| institution | OA Journals |
| issn | 2238-7854 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Elsevier |
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| series | Journal of Materials Research and Technology |
| spelling | doaj-art-4dd192f17951498bbd71a177099ea8472025-08-20T02:35:31ZengElsevierJournal of Materials Research and Technology2238-78542024-11-01332226224310.1016/j.jmrt.2024.09.229The effects of deformation parameters on the second phases and softening behavior of Al–Zn–Mg–Cu alloysRensong Huang0Peng Sun1Liexing Zhou2Yelin Zhang3Shanju Zheng4Xiaohong Yuan5Yonghua Duan6Yawei Peng7Mengnie Li8Faculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, China; Yunnan Key Laboratory of Integrated Computational Materials Engineering for Advanced Light Metals, Kunming, 650093, ChinaFaculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, China; Yunnan Key Laboratory of Integrated Computational Materials Engineering for Advanced Light Metals, Kunming, 650093, ChinaFaculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, China; Yunnan Key Laboratory of Integrated Computational Materials Engineering for Advanced Light Metals, Kunming, 650093, ChinaSpecial Equipment Inspection and Research Institute of Yunnan Province, Kunming, 650228, ChinaFaculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, China; Yunnan Key Laboratory of Integrated Computational Materials Engineering for Advanced Light Metals, Kunming, 650093, China; Corresponding author. Faculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, China.Sino-Platinum Metals Co. Ltd., Kunming Institute of Precious Metals, Kunming, 650106, China; Corresponding author. Sino-Platinum Metals Co. Ltd., Kunming Institute of Precious Metals, Kunming, 650106, China.Faculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, China; Yunnan Key Laboratory of Integrated Computational Materials Engineering for Advanced Light Metals, Kunming, 650093, China; Corresponding author. Faculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, China.School of Mechanical and Power Engineering, Nanjing Tech University, Nanjing, 211816, ChinaFaculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, China; Yunnan Key Laboratory of Integrated Computational Materials Engineering for Advanced Light Metals, Kunming, 650093, China; Corresponding author. Faculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming, 650093, China.This study investigates the effects of deformation parameters on the second phase and softening behavior of Al–Zn–Mg–Cu alloy. The results are as follows: Firstly, the area fraction of the intermetallic phase fluctuates between 0.704 ± 0.092% and 1.886 ± 0.231% with varying deformation parameters. Secondly, in the temperature range of 270 °C to 430 °C, the area fraction of the η[Mg(Zn, Al, Cu)2] phase first increases and then decreases with rising deformation temperature, and gradually increases with decreasing strain rate. The highest area fraction is 12.613 ± 0.340% at 350 °C/0.001 s−1, and the lowest is 0.366 ± 0.068% at 470 °C/0.001 s−1. Additionally, the coarsening and dissolution of the η[Mg(Zn, Al, Cu)2] phase accelerate the dynamic recovery softening of the alloy. The sample at 350 °C/0.001 s−1 shows a low-angle grain boundary (LAGBs) percentage of 97.83% and a minimum average dislocation density of 8.493 × 102 μm2. Furthermore, at 470 °C/0.001 s−1, the Al7Cu2Fe phase has a weaker effect on stimulating nucleation and recrystallization, while the most significant promotion occurs at 430 °C/0.001 s−1. In the range of 270 °C to 350 °C and 0.1 s−1 to 0.5 s−1, the Al7Cu2Fe phase mainly stimulates the formation of sub-grains. These findings offer valuable insights for refining the grain size of alloys by regulating the content of the second phase during hot deformation.http://www.sciencedirect.com/science/article/pii/S2238785424022348Al-Zn-Mg-Cu alloysPhase evolutionRecrystallized grainsParticle-stimulated nucleation (PSN) |
| spellingShingle | Rensong Huang Peng Sun Liexing Zhou Yelin Zhang Shanju Zheng Xiaohong Yuan Yonghua Duan Yawei Peng Mengnie Li The effects of deformation parameters on the second phases and softening behavior of Al–Zn–Mg–Cu alloys Journal of Materials Research and Technology Al-Zn-Mg-Cu alloys Phase evolution Recrystallized grains Particle-stimulated nucleation (PSN) |
| title | The effects of deformation parameters on the second phases and softening behavior of Al–Zn–Mg–Cu alloys |
| title_full | The effects of deformation parameters on the second phases and softening behavior of Al–Zn–Mg–Cu alloys |
| title_fullStr | The effects of deformation parameters on the second phases and softening behavior of Al–Zn–Mg–Cu alloys |
| title_full_unstemmed | The effects of deformation parameters on the second phases and softening behavior of Al–Zn–Mg–Cu alloys |
| title_short | The effects of deformation parameters on the second phases and softening behavior of Al–Zn–Mg–Cu alloys |
| title_sort | effects of deformation parameters on the second phases and softening behavior of al zn mg cu alloys |
| topic | Al-Zn-Mg-Cu alloys Phase evolution Recrystallized grains Particle-stimulated nucleation (PSN) |
| url | http://www.sciencedirect.com/science/article/pii/S2238785424022348 |
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