Design of Laves phase-reinforced compositionally complex alloy
Abstract Topologically close-packed (TCP) phases such as Laves phases are usually considered to harm the mechanical properties of classical superalloys for high-temperature applications. However, if an optimal fraction and size are designed, this situation can completely change for some compositiona...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2023-10-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-023-43722-6 |
| _version_ | 1797560191644860416 |
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| author | Gerald Ressel Florian Biermair Simon Fellner Christoph Gammer Vsevolod I. Razumovskiy |
| author_facet | Gerald Ressel Florian Biermair Simon Fellner Christoph Gammer Vsevolod I. Razumovskiy |
| author_sort | Gerald Ressel |
| collection | DOAJ |
| description | Abstract Topologically close-packed (TCP) phases such as Laves phases are usually considered to harm the mechanical properties of classical superalloys for high-temperature applications. However, if an optimal fraction and size are designed, this situation can completely change for some compositionally complex alloys (CCA). Based on existing studies on austenitic or ferritic steels, we propose in this paper a design strategy aimed at exploiting the role of the Laves phase in defining the mechanical properties of wrought CCAs at elevated temperatures. We demonstrate its efficiency by applying it to the design and production of a new Laves phase—reinforced CCA and present the results of their experimental and theoretical investigation. The results show that a new Laves phase-reinforced CCA can have fine-grained microstructures, lower density, and superior mechanical strength at elevated temperatures while maintaining workability. These new alloys show promising properties compared to existing CCA wrought alloys and actual Ni-based superalloys. |
| first_indexed | 2024-03-10T17:56:56Z |
| format | Article |
| id | doaj.art-614c77cf5e414d3f938c80bfad830c9b |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-03-10T17:56:56Z |
| publishDate | 2023-10-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-614c77cf5e414d3f938c80bfad830c9b2023-11-20T09:10:32ZengNature PortfolioScientific Reports2045-23222023-10-011311910.1038/s41598-023-43722-6Design of Laves phase-reinforced compositionally complex alloyGerald Ressel0Florian Biermair1Simon Fellner2Christoph Gammer3Vsevolod I. Razumovskiy4Materials Center Leoben Forschung GmbHMaterials Center Leoben Forschung GmbHErich Schmid Institute of Materials Science, Austrian Academy of SciencesErich Schmid Institute of Materials Science, Austrian Academy of SciencesMaterials Center Leoben Forschung GmbHAbstract Topologically close-packed (TCP) phases such as Laves phases are usually considered to harm the mechanical properties of classical superalloys for high-temperature applications. However, if an optimal fraction and size are designed, this situation can completely change for some compositionally complex alloys (CCA). Based on existing studies on austenitic or ferritic steels, we propose in this paper a design strategy aimed at exploiting the role of the Laves phase in defining the mechanical properties of wrought CCAs at elevated temperatures. We demonstrate its efficiency by applying it to the design and production of a new Laves phase—reinforced CCA and present the results of their experimental and theoretical investigation. The results show that a new Laves phase-reinforced CCA can have fine-grained microstructures, lower density, and superior mechanical strength at elevated temperatures while maintaining workability. These new alloys show promising properties compared to existing CCA wrought alloys and actual Ni-based superalloys.https://doi.org/10.1038/s41598-023-43722-6 |
| spellingShingle | Gerald Ressel Florian Biermair Simon Fellner Christoph Gammer Vsevolod I. Razumovskiy Design of Laves phase-reinforced compositionally complex alloy Scientific Reports |
| title | Design of Laves phase-reinforced compositionally complex alloy |
| title_full | Design of Laves phase-reinforced compositionally complex alloy |
| title_fullStr | Design of Laves phase-reinforced compositionally complex alloy |
| title_full_unstemmed | Design of Laves phase-reinforced compositionally complex alloy |
| title_short | Design of Laves phase-reinforced compositionally complex alloy |
| title_sort | design of laves phase reinforced compositionally complex alloy |
| url | https://doi.org/10.1038/s41598-023-43722-6 |
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