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Design and production of a new feconicralcu high-entropy alloy: influence of powder production method on sintering

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dc.affiliation.dptoUC3M. Departamento de Ciencia e Ingeniería de Materiales e Ingeniería Químicaes
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Tecnología de Polvoses
dc.contributor.authorReverte Palomino, Eduardo
dc.contributor.authorCalvo-Dahlborg, Monique
dc.contributor.authorDahlborg, Ulf
dc.contributor.authorCampos Gómez, Mónica
dc.contributor.authorAlvaredo Olmos, Paula
dc.contributor.authorMartín Rodríguez, Pablo
dc.contributor.authorGordo Odériz, Elena
dc.contributor.authorCornide Arce, Juan
dc.contributor.funderComunidad de Madrides
dc.contributor.funderMinisterio de Educación, Cultura y Deporte (España)es
dc.date.accessioned2022-03-15T09:55:35Z
dc.date.available2022-03-15T09:55:35Z
dc.date.issued2021-08
dc.description.abstractThe structure of FeCoNiCrAl1.8Cu0.5 high-entropy alloys (HEA) obtained by two different routes has been studied. The selection of the composition has followed the Hume-Rothery approach in terms of number of itinerant electrons (e/a) and average atomic radius to control the formation of specific phases. The alloys were obtained either from a mixture of elemental powders or from gas-atomised powders, being consolidated in both cases by uniaxial pressing and vacuum sin-tering at temperatures of 1200 degrees C and 1300 degrees C. The characterization performed in the sintered samples from both types of powder includes scanning electron microscopy, X-ray diffraction, differential thermal analysis, and density measurements. It was found that the powder production techniques give similar phases content. However, the sintering at 1300 degrees C destroys the achieved phase stability of the samples. The phases identified by all techniques and confirmed by Thermo-Calc calculations are the following: a major Co-Ni-Al-rich (P1) BCC phase, which stays stable after 1300 degrees C sintering and homogenising TT treatments; a complex Cr-Fe-rich (P2) B2 type phase, which transforms into a sigma phase after the 1300 degrees C sintering and homogenising TT treatments; and a very minor Al-Cu-rich (P3) FCC phase, which also transforms into Domain II and Domain III phases during the heating at 1300 degrees C and homogenising TT treatments.en
dc.description.sponsorshipThis investigation was supported by the Spanish Government through grant MAT2015- 70780-C4-2, and the Regional Government of Madrid through the programme ADITIMAT-CM (Ref. S2018/NMT-4411). J. Cornide also acknowledges funding from the Spanish Ministry of Science and Innovation (IJCI-2017-31348).en
dc.format.extent17
dc.identifier.bibliographicCitationReverte, E., Calvo-Dahlborg, M., Dahlborg, U., Campos, M., Alvaredo, P., Martin-Rodriguez, P., Gordo, E., & Cornide, J. (2021). Design and Production of a New FeCoNiCrAlCu High-Entropy Alloy: Influence of Powder Production Method on Sintering. In Materials (Vol. 14, Issue 15, p. 4342). MDPI AG.en
dc.identifier.doihttps://doi.org/10.3390/ma14154342
dc.identifier.issn1996-1944
dc.identifier.publicationfirstpage4342
dc.identifier.publicationissue15
dc.identifier.publicationlastpage4359
dc.identifier.publicationtitleMaterials (Materials)en
dc.identifier.publicationvolume14
dc.identifier.urihttp://hdl.handle.net/10016/34377
dc.identifier.uxxiAR/0000028922
dc.language.isoengen
dc.publisherMDPIen
dc.relation.projectIDGobierno de España. MAT2015-70780-C4-2-Pes
dc.relation.projectIDGobierno de España. IJCI-2017-31348es
dc.relation.projectIDComunidad de Madrid. S2018/NMT-4411es
dc.rights© 2021 by the authors. Licensee MDPI, Basel, Switzerland.en
dc.rightsAtribución 3.0 España*
dc.rights.accessRightsopen accessen
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/es/*
dc.subject.ecienciaIngeniería Mecánicaes
dc.subject.ecienciaQuímicaes
dc.subject.otherAlloy designen
dc.subject.otherAtomisationen
dc.subject.otherDifferential thermal analysisen
dc.subject.otherHigh entropy alloyen
dc.subject.otherMicrostructureen
dc.subject.otherPowder metallurgyen
dc.subject.otherThermo-calcen
dc.subject.otherX-Ray diffractionen
dc.titleDesign and production of a new feconicralcu high-entropy alloy: influence of powder production method on sinteringen
dc.typeresearch article*
dc.type.hasVersionVoR*
dspace.entity.typePublication
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