A study of the effect of Mn on the precipitation and phase transition of nanoscale Cu-rich phase in Fe–Cu alloys by phase-field method
In this study, the influence of Mn content on the precipitation and structural phase transition of the Cu-rich phase in Fe–Cu–Mn alloy at 773 K was simulated by a phase-field model. The results showed that, in the early stage of the precipitation, Mn and Cu atoms were first congregated to form Mn–Cu...
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| Language: | English |
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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/S2238785425001528 |
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| author | Mingguang Wei Tongguang Zhai Yong Xu Yingming Tu Haisheng Han |
| author_facet | Mingguang Wei Tongguang Zhai Yong Xu Yingming Tu Haisheng Han |
| author_sort | Mingguang Wei |
| collection | DOAJ |
| description | In this study, the influence of Mn content on the precipitation and structural phase transition of the Cu-rich phase in Fe–Cu–Mn alloy at 773 K was simulated by a phase-field model. The results showed that, in the early stage of the precipitation, Mn and Cu atoms were first congregated to form Mn–Cu co-clusters, followed by Mn atoms separating from the co-clusters to segregate at the cluster-matrix interface to form a Cu-rich core and Mn-rich shell structure once the Cu content in the co-clusters reached 85%. The increase in Mn content in the alloy promoted the nucleation of the Cu-rich phase, resulting in an increase in the number density and volume fraction of the Cu-rich precipitates, while inhibiting the growth and coarsening of the Cu-rich phase. Furthermore, as the Mn content increases, the incubation time required for α-Cu phase to transform into the 9R phase was increased, while the critical radius for the transformation of α-Cu precipitates into 9R phase was decreased. |
| format | Article |
| id | doaj-art-23fd7ea857124ffd89c211d8c875de59 |
| institution | Kabale University |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-23fd7ea857124ffd89c211d8c875de592025-01-26T05:03:57ZengElsevierJournal of Materials Research and Technology2238-78542025-03-013519711981A study of the effect of Mn on the precipitation and phase transition of nanoscale Cu-rich phase in Fe–Cu alloys by phase-field methodMingguang Wei0Tongguang Zhai1Yong Xu2Yingming Tu3Haisheng Han4School 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, Shandong Jianzhu University, Jinan, 250101, ChinaSchool of Materials Science and Engineering, Shandong Jianzhu University, Jinan, 250101, ChinaSchool of Materials Science and Engineering, Tianjin Key Laboratory of Materials Laminating Fabrication and Interface Control Technology, Hebei University of Technology, Tianjin, 300130, ChinaIn this study, the influence of Mn content on the precipitation and structural phase transition of the Cu-rich phase in Fe–Cu–Mn alloy at 773 K was simulated by a phase-field model. The results showed that, in the early stage of the precipitation, Mn and Cu atoms were first congregated to form Mn–Cu co-clusters, followed by Mn atoms separating from the co-clusters to segregate at the cluster-matrix interface to form a Cu-rich core and Mn-rich shell structure once the Cu content in the co-clusters reached 85%. The increase in Mn content in the alloy promoted the nucleation of the Cu-rich phase, resulting in an increase in the number density and volume fraction of the Cu-rich precipitates, while inhibiting the growth and coarsening of the Cu-rich phase. Furthermore, as the Mn content increases, the incubation time required for α-Cu phase to transform into the 9R phase was increased, while the critical radius for the transformation of α-Cu precipitates into 9R phase was decreased.http://www.sciencedirect.com/science/article/pii/S2238785425001528Fe–Cu–Mn alloyPhase-field methodCu-rich precipitationCore-shell structurePhase transformation |
| spellingShingle | Mingguang Wei Tongguang Zhai Yong Xu Yingming Tu Haisheng Han A study of the effect of Mn on the precipitation and phase transition of nanoscale Cu-rich phase in Fe–Cu alloys by phase-field method Journal of Materials Research and Technology Fe–Cu–Mn alloy Phase-field method Cu-rich precipitation Core-shell structure Phase transformation |
| title | A study of the effect of Mn on the precipitation and phase transition of nanoscale Cu-rich phase in Fe–Cu alloys by phase-field method |
| title_full | A study of the effect of Mn on the precipitation and phase transition of nanoscale Cu-rich phase in Fe–Cu alloys by phase-field method |
| title_fullStr | A study of the effect of Mn on the precipitation and phase transition of nanoscale Cu-rich phase in Fe–Cu alloys by phase-field method |
| title_full_unstemmed | A study of the effect of Mn on the precipitation and phase transition of nanoscale Cu-rich phase in Fe–Cu alloys by phase-field method |
| title_short | A study of the effect of Mn on the precipitation and phase transition of nanoscale Cu-rich phase in Fe–Cu alloys by phase-field method |
| title_sort | study of the effect of mn on the precipitation and phase transition of nanoscale cu rich phase in fe cu alloys by phase field method |
| topic | Fe–Cu–Mn alloy Phase-field method Cu-rich precipitation Core-shell structure Phase transformation |
| url | http://www.sciencedirect.com/science/article/pii/S2238785425001528 |
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