A study of grain boundary precipitation of nano-scale Cu-rich phase in polycrystalline Fe–Cu binary alloys using a phase-field method
In this study, a phase-field model was developed to simulate quantitatively, for the first time, the precipitation process of the Cu-rich phase at grain boundaries in polycrystalline Fe–Cu alloys with different Cu contents at different aging temperatures. The results showed that, with increasing seg...
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| Format: | Article |
| Language: | English |
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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/S2238785424029065 |
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| author | Mingguang Wei Tongguang Zhai Kang Wang |
| author_facet | Mingguang Wei Tongguang Zhai Kang Wang |
| author_sort | Mingguang Wei |
| collection | DOAJ |
| description | In this study, a phase-field model was developed to simulate quantitatively, for the first time, the precipitation process of the Cu-rich phase at grain boundaries in polycrystalline Fe–Cu alloys with different Cu contents at different aging temperatures. The results showed that, with increasing segregation of Cu atoms at grain boundaries, the incubation time of the Cu-rich phase was decreased, and the number density of the Cu precipitates increases at the boundaries but decreases within grains. With lower initial Cu content or at a higher temperature, a relatively small number of Cu precipitates could preferentially be formed at grain boundaries through a nucleation-growth mechanism. With increasing the initial Cu content or decreasing temperature, precipitation of the Cu-rich phase occurred by a pseudo-spinodal decomposition, resulting in formation of the Cu precipitates in a large number at grain boundaries and inside grains over a shorter period. This work paved the way to applying the phase-field modeling technique to further quantify the precipitation behaviors of Cu-rich phase in polycrystalline Fe–Cu alloys. |
| format | Article |
| id | doaj-art-bf4ec8b5cbec49d5b1e7a11824fdef1d |
| institution | OA Journals |
| issn | 2238-7854 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-bf4ec8b5cbec49d5b1e7a11824fdef1d2025-08-20T01:57:20ZengElsevierJournal of Materials Research and Technology2238-78542024-11-01338983899110.1016/j.jmrt.2024.12.103A study of grain boundary precipitation of nano-scale Cu-rich phase in polycrystalline Fe–Cu binary alloys using a phase-field methodMingguang Wei0Tongguang Zhai1Kang Wang2School of Materials Science and Engineering, Shandong Jianzhu University, Jinan, 250101, China; School of Physics Science and Technology, Guangxi University, Nanning, 530004, ChinaSchool of Materials Science and Engineering, Shandong Jianzhu University, Jinan, 250101, China; Corresponding author.School of Materials Science and Engineering, Dongguan University of Technology, Dongguan, 523808, ChinaIn this study, a phase-field model was developed to simulate quantitatively, for the first time, the precipitation process of the Cu-rich phase at grain boundaries in polycrystalline Fe–Cu alloys with different Cu contents at different aging temperatures. The results showed that, with increasing segregation of Cu atoms at grain boundaries, the incubation time of the Cu-rich phase was decreased, and the number density of the Cu precipitates increases at the boundaries but decreases within grains. With lower initial Cu content or at a higher temperature, a relatively small number of Cu precipitates could preferentially be formed at grain boundaries through a nucleation-growth mechanism. With increasing the initial Cu content or decreasing temperature, precipitation of the Cu-rich phase occurred by a pseudo-spinodal decomposition, resulting in formation of the Cu precipitates in a large number at grain boundaries and inside grains over a shorter period. This work paved the way to applying the phase-field modeling technique to further quantify the precipitation behaviors of Cu-rich phase in polycrystalline Fe–Cu alloys.http://www.sciencedirect.com/science/article/pii/S2238785424029065Fe-Cu alloysCu-rich phaseGrain boundaryPhase-field method |
| spellingShingle | Mingguang Wei Tongguang Zhai Kang Wang A study of grain boundary precipitation of nano-scale Cu-rich phase in polycrystalline Fe–Cu binary alloys using a phase-field method Journal of Materials Research and Technology Fe-Cu alloys Cu-rich phase Grain boundary Phase-field method |
| title | A study of grain boundary precipitation of nano-scale Cu-rich phase in polycrystalline Fe–Cu binary alloys using a phase-field method |
| title_full | A study of grain boundary precipitation of nano-scale Cu-rich phase in polycrystalline Fe–Cu binary alloys using a phase-field method |
| title_fullStr | A study of grain boundary precipitation of nano-scale Cu-rich phase in polycrystalline Fe–Cu binary alloys using a phase-field method |
| title_full_unstemmed | A study of grain boundary precipitation of nano-scale Cu-rich phase in polycrystalline Fe–Cu binary alloys using a phase-field method |
| title_short | A study of grain boundary precipitation of nano-scale Cu-rich phase in polycrystalline Fe–Cu binary alloys using a phase-field method |
| title_sort | study of grain boundary precipitation of nano scale cu rich phase in polycrystalline fe cu binary alloys using a phase field method |
| topic | Fe-Cu alloys Cu-rich phase Grain boundary Phase-field method |
| url | http://www.sciencedirect.com/science/article/pii/S2238785424029065 |
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