Microstructure and mechanical properties of highly porous Hastelloy-X nickel superalloy produced by a space holder approach
Abstract Highly porous nickel-based superalloys appear as attractive candidates to be applied e.g. as seals in gas turbine engines instead of honeycomb structures. Among various methods of producing open-porous materials, a space holder approach provides number of benefits regarding economic and eco...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-01-01
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| Series: | Scientific Reports |
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| Online Access: | https://doi.org/10.1038/s41598-024-84321-3 |
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| author | Aleksandra Bętkowska Marcin Podsiadło Adelajda Polkowska Grzegorz Włoch Wojciech Polkowski |
| author_facet | Aleksandra Bętkowska Marcin Podsiadło Adelajda Polkowska Grzegorz Włoch Wojciech Polkowski |
| author_sort | Aleksandra Bętkowska |
| collection | DOAJ |
| description | Abstract Highly porous nickel-based superalloys appear as attractive candidates to be applied e.g. as seals in gas turbine engines instead of honeycomb structures. Among various methods of producing open-porous materials, a space holder approach provides number of benefits regarding economic and ecological aspects of production. In this work, the pioneering results of microstructure and mechanical properties analyses of highly porous Hastelloy-X nickel superalloy produced by the space holder approach, are presented. The materials were fabricated by using spherical fine Hastelloy-X powders and carbamide particles as batch materials. A multi-step powder metallurgy and thermomechanical processing was applied to produce open porous samples having a total volumetric porosity of 50, 60 and 70%. The produced materials were subjected to non-destructive (X-ray computed tomography) and metallographic inspections. Mechanical properties of the porous Hastelloy-X samples were examined in static room temperature compression tests, to discuss the effect of obtained porosity on compressive response. |
| format | Article |
| id | doaj-art-2daa893618a641e2a7a9f47b75f27f0a |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-2daa893618a641e2a7a9f47b75f27f0a2025-01-05T12:13:49ZengNature PortfolioScientific Reports2045-23222025-01-0115111310.1038/s41598-024-84321-3Microstructure and mechanical properties of highly porous Hastelloy-X nickel superalloy produced by a space holder approachAleksandra Bętkowska0Marcin Podsiadło1Adelajda Polkowska2Grzegorz Włoch3Wojciech Polkowski4Łukasiewicz Research Network, Krakow Institute of TechnologyŁukasiewicz Research Network, Krakow Institute of TechnologyŁukasiewicz Research Network, Krakow Institute of TechnologyFaculty of Non-Ferrous Metals, AGH University of Science and TechnologyŁukasiewicz Research Network, Krakow Institute of TechnologyAbstract Highly porous nickel-based superalloys appear as attractive candidates to be applied e.g. as seals in gas turbine engines instead of honeycomb structures. Among various methods of producing open-porous materials, a space holder approach provides number of benefits regarding economic and ecological aspects of production. In this work, the pioneering results of microstructure and mechanical properties analyses of highly porous Hastelloy-X nickel superalloy produced by the space holder approach, are presented. The materials were fabricated by using spherical fine Hastelloy-X powders and carbamide particles as batch materials. A multi-step powder metallurgy and thermomechanical processing was applied to produce open porous samples having a total volumetric porosity of 50, 60 and 70%. The produced materials were subjected to non-destructive (X-ray computed tomography) and metallographic inspections. Mechanical properties of the porous Hastelloy-X samples were examined in static room temperature compression tests, to discuss the effect of obtained porosity on compressive response.https://doi.org/10.1038/s41598-024-84321-3Hastelloy-XNickel superalloysMetallic porous materialsSpace holder techniqueX-ray computed tomography |
| spellingShingle | Aleksandra Bętkowska Marcin Podsiadło Adelajda Polkowska Grzegorz Włoch Wojciech Polkowski Microstructure and mechanical properties of highly porous Hastelloy-X nickel superalloy produced by a space holder approach Scientific Reports Hastelloy-X Nickel superalloys Metallic porous materials Space holder technique X-ray computed tomography |
| title | Microstructure and mechanical properties of highly porous Hastelloy-X nickel superalloy produced by a space holder approach |
| title_full | Microstructure and mechanical properties of highly porous Hastelloy-X nickel superalloy produced by a space holder approach |
| title_fullStr | Microstructure and mechanical properties of highly porous Hastelloy-X nickel superalloy produced by a space holder approach |
| title_full_unstemmed | Microstructure and mechanical properties of highly porous Hastelloy-X nickel superalloy produced by a space holder approach |
| title_short | Microstructure and mechanical properties of highly porous Hastelloy-X nickel superalloy produced by a space holder approach |
| title_sort | microstructure and mechanical properties of highly porous hastelloy x nickel superalloy produced by a space holder approach |
| topic | Hastelloy-X Nickel superalloys Metallic porous materials Space holder technique X-ray computed tomography |
| url | https://doi.org/10.1038/s41598-024-84321-3 |
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