Recrystallization and grain growth behavior of variously deformed CoCrFeMnNi high-entropy alloys: microstructure characterization and modeling
The recrystallization and grain growth behavior of CoCrFeMnNi high-entropy alloys (HEAs) with different plastic deformations were studied. Differential scanning calorimetry (DSC) tests were novelly adopted to characterize the recrystallization process. Experimental results suggest that pre-deformati...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-09-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785422011942 |
| _version_ | 1818027129527336960 |
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| author | Chaowei Zheng Ying Wang Junsong Jin Pan Gong Xinyun Wang Hongning Wen Mao Zhang |
| author_facet | Chaowei Zheng Ying Wang Junsong Jin Pan Gong Xinyun Wang Hongning Wen Mao Zhang |
| author_sort | Chaowei Zheng |
| collection | DOAJ |
| description | The recrystallization and grain growth behavior of CoCrFeMnNi high-entropy alloys (HEAs) with different plastic deformations were studied. Differential scanning calorimetry (DSC) tests were novelly adopted to characterize the recrystallization process. Experimental results suggest that pre-deformation has great promotion on the recrystallization rate and degree. The recrystallized grain size decreases with increasing deformation due to increased potential nucleation sites. Severe deformation and low annealing temperature are helpful to refine annealed grains. A static recrystallization model for variously deformed HEAs was developed, in which the recrystallization rate was expressed as a function of strain and annealing temperature. An improved grain growth model was established, which takes the recrystallization process into consideration and declares that the annealed grain size decreases first and then increases. The recrystallization fraction and the annealed grain size of the HEAs with different deformations annealed at different temperatures can be predicted. |
| first_indexed | 2024-12-10T04:42:59Z |
| format | Article |
| id | doaj.art-47d77dbbf3854b2396afb1dd1c546c21 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-12-10T04:42:59Z |
| publishDate | 2022-09-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-47d77dbbf3854b2396afb1dd1c546c212022-12-22T02:01:50ZengElsevierJournal of Materials Research and Technology2238-78542022-09-012022772292Recrystallization and grain growth behavior of variously deformed CoCrFeMnNi high-entropy alloys: microstructure characterization and modelingChaowei Zheng0Ying Wang1Junsong Jin2Pan Gong3Xinyun Wang4Hongning Wen5Mao Zhang6State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, ChinaSchool of Mechanical Engineering, Wuhan Polytechnic University, Wuhan 430000, ChinaState Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, China; Corresponding author.State Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, ChinaState Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, ChinaState Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, ChinaState Key Laboratory of Materials Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan 430074, ChinaThe recrystallization and grain growth behavior of CoCrFeMnNi high-entropy alloys (HEAs) with different plastic deformations were studied. Differential scanning calorimetry (DSC) tests were novelly adopted to characterize the recrystallization process. Experimental results suggest that pre-deformation has great promotion on the recrystallization rate and degree. The recrystallized grain size decreases with increasing deformation due to increased potential nucleation sites. Severe deformation and low annealing temperature are helpful to refine annealed grains. A static recrystallization model for variously deformed HEAs was developed, in which the recrystallization rate was expressed as a function of strain and annealing temperature. An improved grain growth model was established, which takes the recrystallization process into consideration and declares that the annealed grain size decreases first and then increases. The recrystallization fraction and the annealed grain size of the HEAs with different deformations annealed at different temperatures can be predicted.http://www.sciencedirect.com/science/article/pii/S2238785422011942High-entropy alloysRecrystallizationAnnealingGrain growthPlastic deformation |
| spellingShingle | Chaowei Zheng Ying Wang Junsong Jin Pan Gong Xinyun Wang Hongning Wen Mao Zhang Recrystallization and grain growth behavior of variously deformed CoCrFeMnNi high-entropy alloys: microstructure characterization and modeling Journal of Materials Research and Technology High-entropy alloys Recrystallization Annealing Grain growth Plastic deformation |
| title | Recrystallization and grain growth behavior of variously deformed CoCrFeMnNi high-entropy alloys: microstructure characterization and modeling |
| title_full | Recrystallization and grain growth behavior of variously deformed CoCrFeMnNi high-entropy alloys: microstructure characterization and modeling |
| title_fullStr | Recrystallization and grain growth behavior of variously deformed CoCrFeMnNi high-entropy alloys: microstructure characterization and modeling |
| title_full_unstemmed | Recrystallization and grain growth behavior of variously deformed CoCrFeMnNi high-entropy alloys: microstructure characterization and modeling |
| title_short | Recrystallization and grain growth behavior of variously deformed CoCrFeMnNi high-entropy alloys: microstructure characterization and modeling |
| title_sort | recrystallization and grain growth behavior of variously deformed cocrfemnni high entropy alloys microstructure characterization and modeling |
| topic | High-entropy alloys Recrystallization Annealing Grain growth Plastic deformation |
| url | http://www.sciencedirect.com/science/article/pii/S2238785422011942 |
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