Reactive interdiffusion of an Al film and a CoCrFeNi high-entropy alloy
Diffusion plays a significant role in phase formation and transformation in solid-state alloys. In order to determine the influence of element diffusion on the phase formation and transition behavior in a high-entropy alloy (HEA), a systematic study on the reactive diffusion of Al and a CoCrFeNi HEA...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-04-01
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| Series: | Materials & Design |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0264127522001514 |
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| author | Z.Q. Zhang S.V. Ketov S. Fellner H.P. Sheng C. Mitterer K.K. Song C. Gammer J. Eckert |
| author_facet | Z.Q. Zhang S.V. Ketov S. Fellner H.P. Sheng C. Mitterer K.K. Song C. Gammer J. Eckert |
| author_sort | Z.Q. Zhang |
| collection | DOAJ |
| description | Diffusion plays a significant role in phase formation and transformation in solid-state alloys. In order to determine the influence of element diffusion on the phase formation and transition behavior in a high-entropy alloy (HEA), a systematic study on the reactive diffusion of Al and a CoCrFeNi HEA was carried out. It is demonstrated that thermodynamic and kinetic effects play a coupled role in the phase evolution in the HEA, among which the thermodynamic effect governs the evolution of major phases. The diffusion direction of the elements is controlled by the Gibbs free energy gradient in front of the interface, while the sluggish diffusion effect does not play a dominant role during reactive diffusion. At an annealing temperature of 773 K, the enthalpy of mixing dominates the total energy and therefore has a significant impact on the phase evolution during reactive diffusion. |
| first_indexed | 2024-12-12T23:16:31Z |
| format | Article |
| id | doaj.art-e1c6c29770dd4de9a2d75ca340c3d17d |
| institution | Directory Open Access Journal |
| issn | 0264-1275 |
| language | English |
| last_indexed | 2024-12-12T23:16:31Z |
| publishDate | 2022-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Materials & Design |
| spelling | doaj.art-e1c6c29770dd4de9a2d75ca340c3d17d2022-12-22T00:08:26ZengElsevierMaterials & Design0264-12752022-04-01216110530Reactive interdiffusion of an Al film and a CoCrFeNi high-entropy alloyZ.Q. Zhang0S.V. Ketov1S. Fellner2H.P. Sheng3C. Mitterer4K.K. Song5C. Gammer6J. Eckert7Erich Schmid Institute of Materials Science, Austrian Academy of Sciences, Jahnstraße 12, 8700 Leoben, Austria; Department of Materials Science, Montanuniversität Leoben, Jahnstraße 12, 8700 Leoben, AustriaErich Schmid Institute of Materials Science, Austrian Academy of Sciences, Jahnstraße 12, 8700 Leoben, AustriaErich Schmid Institute of Materials Science, Austrian Academy of Sciences, Jahnstraße 12, 8700 Leoben, Austria; Department of Materials Science, Montanuniversität Leoben, Jahnstraße 12, 8700 Leoben, AustriaErich Schmid Institute of Materials Science, Austrian Academy of Sciences, Jahnstraße 12, 8700 Leoben, AustriaDepartment of Materials Science, Montanuniversität Leoben, Franz-Josef-Straße 18, 8700 Leoben, AustriaSchool of Mechanical, Electrical & Information Engineering, Shandong University, Wenhua Xilu 180, 264209 Weihai, ChinaErich Schmid Institute of Materials Science, Austrian Academy of Sciences, Jahnstraße 12, 8700 Leoben, Austria; Corresponding authors at: Erich Schmid Institute of Materials Science, Austrian Academy of Sciences, Jahnstraße 12, 8700 Leoben, Austria (J. Eckert).Erich Schmid Institute of Materials Science, Austrian Academy of Sciences, Jahnstraße 12, 8700 Leoben, Austria; Department of Materials Science, Montanuniversität Leoben, Jahnstraße 12, 8700 Leoben, Austria; Corresponding authors at: Erich Schmid Institute of Materials Science, Austrian Academy of Sciences, Jahnstraße 12, 8700 Leoben, Austria (J. Eckert).Diffusion plays a significant role in phase formation and transformation in solid-state alloys. In order to determine the influence of element diffusion on the phase formation and transition behavior in a high-entropy alloy (HEA), a systematic study on the reactive diffusion of Al and a CoCrFeNi HEA was carried out. It is demonstrated that thermodynamic and kinetic effects play a coupled role in the phase evolution in the HEA, among which the thermodynamic effect governs the evolution of major phases. The diffusion direction of the elements is controlled by the Gibbs free energy gradient in front of the interface, while the sluggish diffusion effect does not play a dominant role during reactive diffusion. At an annealing temperature of 773 K, the enthalpy of mixing dominates the total energy and therefore has a significant impact on the phase evolution during reactive diffusion.http://www.sciencedirect.com/science/article/pii/S0264127522001514Reactive diffusionHigh-entropy alloyDepositionPhase evolution |
| spellingShingle | Z.Q. Zhang S.V. Ketov S. Fellner H.P. Sheng C. Mitterer K.K. Song C. Gammer J. Eckert Reactive interdiffusion of an Al film and a CoCrFeNi high-entropy alloy Materials & Design Reactive diffusion High-entropy alloy Deposition Phase evolution |
| title | Reactive interdiffusion of an Al film and a CoCrFeNi high-entropy alloy |
| title_full | Reactive interdiffusion of an Al film and a CoCrFeNi high-entropy alloy |
| title_fullStr | Reactive interdiffusion of an Al film and a CoCrFeNi high-entropy alloy |
| title_full_unstemmed | Reactive interdiffusion of an Al film and a CoCrFeNi high-entropy alloy |
| title_short | Reactive interdiffusion of an Al film and a CoCrFeNi high-entropy alloy |
| title_sort | reactive interdiffusion of an al film and a cocrfeni high entropy alloy |
| topic | Reactive diffusion High-entropy alloy Deposition Phase evolution |
| url | http://www.sciencedirect.com/science/article/pii/S0264127522001514 |
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