Deformation Induced Structure and Property Changes in a Nanostructured Multiphase CrMnFeCoNi High-Entropy Alloy

Benjamin Schuh; Inas Issa; Timo Müller; Thomas Kremmer; Christoph Gammer; Reinhard Pippan; Anton Hohenwarter

doi:10.3390/nano13050924

Deformation Induced Structure and Property Changes in a Nanostructured Multiphase CrMnFeCoNi High-Entropy Alloy

Benjamin Schuh, Inas Issa, Timo Müller, Thomas Kremmer, Christoph Gammer, Reinhard Pippan, Anton Hohenwarter

Erich-Schmid-Institut für Materialwissenschaft der Österreichischen Akademie der Wissenschaften

Publikation: Beitrag in Fachzeitschrift › Artikel › Forschung › Begutachtung

Abstract

A nanocrystalline CrMnFeCoNi high-entropy alloy produced using severe plastic deformation using high-pressure torsion was annealed at selected temperatures and times (450 °C for 1 h and 15 h and at 600 °C for 1 h), causing a phase decomposition into a multi-phase structure. The samples were subsequently deformed again by high-pressure torsion to investigate the possibility of tailoring a favorable composite architecture by re-distributing, fragmenting, or partially dissolving the additional intermetallic phases. While the second phase in the 450 °C annealing states had high stability against mechanical mixing, a partial dissolution could be achieved in the samples subjected to 600 °C for 1 h.

Originalsprache	Englisch
Aufsatznummer	924
Seitenumfang	12
Fachzeitschrift	Nanomaterials
Jahrgang	13.2023
Ausgabenummer	5
DOIs	https://doi.org/10.3390/nano13050924
Publikationsstatus	Veröffentlicht - 2 März 2023

Bibliographische Notiz

Funding Information:
This work was supported by the Austrian Science Fund FWF in the framework of Research Project P26729-N19. Funding for this work has also been provided by the European Research Council under ERC Grant Agreement No. 340185 USMS. We kindly acknowledge financial support by the Austrian Research Promotion Agency (FFG) in the project 3DnanoAnalytics (FFG-No 858040).

Publisher Copyright:
© 2023 by the authors.

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abstract = "A nanocrystalline CrMnFeCoNi high-entropy alloy produced using severe plastic deformation using high-pressure torsion was annealed at selected temperatures and times (450 °C for 1 h and 15 h and at 600 °C for 1 h), causing a phase decomposition into a multi-phase structure. The samples were subsequently deformed again by high-pressure torsion to investigate the possibility of tailoring a favorable composite architecture by re-distributing, fragmenting, or partially dissolving the additional intermetallic phases. While the second phase in the 450 °C annealing states had high stability against mechanical mixing, a partial dissolution could be achieved in the samples subjected to 600 °C for 1 h. ",

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