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Damage threshold of CuCrFeTiV high entropy alloys for nuclear fusion reactors

2022-10Journal article Open access
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dc.contributor.authorDias, Marta
dc.contributor.authorMagalhães, S.
dc.contributor.authorAntão, Francisco
dc.contributor.authorSilva, R.C. da
dc.contributor.authorGonçalves, António Pereira
dc.contributor.authorCarvalho, Patricia Almeida
dc.contributor.authorCorreia, J.B.
dc.contributor.authorGalatanu, Andrei
dc.contributor.authorAlves, E.
dc.date.accessioned2022-10-21T14:12:37Z
dc.date.available2022-10-21T14:12:37Z
dc.date.issued2022-10
dc.description.abstractABSTRACT: A CuCrFeTiV high entropy alloy was prepared and irradiated with swift heavy ions in order to check its adequacy for use as a thermal barrier in future nuclear fusion reactors. The alloy was prepared from the elemental powders by ball milling, followed by consolidation by spark plasma sintering at 1178 K and 65 MPa. The samples were then irradiated at room temperature with 300 keV Ar+ ions with fluences in the 3 x 1015 to 3 x 1018 Ar+/cm2 range to mimic neutron-induced damage accumulation during a duty cycle of a fusion reactor. Structural changes were investigated by X-ray diffraction, and scanning electron microscopy and scanning transmission electron microscopy, both coupled with X-ray energy dispersive spectroscopy. Surface irradiation damage was detected for high fluences (3 x 1018 Ar+/cm2) with formation of blisters of up to 1 mu m in diameter. Cross-sectional scanning transmission electron microscopy showed the presence of intergranular cavities only in the sample irradiated with 3 x 1018 Ar+/cm2, while all irradiation experiments produced intragranular nanometric-sized bubbles with increased density for higher Ar+ fluence. The Williamson-Hall method revealed a decrease in the average crystallite size and an increase in residual strain with increasing fluence, consistent with the formation of Ar+ bubbles at the irradiated surface.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationDias, M... [et.al.] - Damage threshold of CuCrFeTiV high entropy alloys for nuclear fusion reactors. In: Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 2022, vol. 529, p. 49-55pt_PT
dc.identifier.doi10.1016/j.nimb.2022.09.003pt_PT
dc.identifier.eissn1872-9584
dc.identifier.issn0168-583X
dc.identifier.urihttp://hdl.handle.net/10400.9/3921
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationInstitute for Plasmas and Nuclear Fusion
dc.relationInstitute for Plasmas and Nuclear Fusion
dc.relation.publisherversionhttps://doi.org/10.1016/j.nimb.2022.09.003pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/pt_PT
dc.subjectHigh entropy alloyspt_PT
dc.subjectInterlayerpt_PT
dc.subjectMicrostructurespt_PT
dc.titleDamage threshold of CuCrFeTiV high entropy alloys for nuclear fusion reactorspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleInstitute for Plasmas and Nuclear Fusion
oaire.awardTitleInstitute for Plasmas and Nuclear Fusion
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50010%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F50010%2F2020/PT
oaire.citation.endPage55pt_PT
oaire.citation.startPage49pt_PT
oaire.citation.titleNuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atomspt_PT
oaire.citation.volume529pt_PT
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
person.familyNameDias
person.familyNameda Silva
person.familyNamePereira Gonçalves
person.familyNamecarvalho
person.familyNameCorreia
person.familyNameGalatanu
person.familyNameAlves
person.givenNameMarta
person.givenNameRui
person.givenNameAntonio
person.givenNamepatricia
person.givenNameJose B.
person.givenNameAndrei
person.givenNameEduardo
person.identifier.ciencia-id0E13-5F70-9D8A
person.identifier.ciencia-id1816-7461-553D
person.identifier.ciencia-id4D1A-2834-70FA
person.identifier.ciencia-id021E-97A3-F128
person.identifier.ciencia-idC31C-D617-6377
person.identifier.ciencia-id7911-8653-3CF4
person.identifier.orcid0000-0001-6797-7711
person.identifier.orcid0000-0002-4442-891X
person.identifier.orcid0000-0003-2640-3038
person.identifier.orcid0000-0002-5447-0409
person.identifier.orcid0000-0002-8314-0695
person.identifier.orcid0000-0001-8474-8259
person.identifier.orcid0000-0003-0633-8937
person.identifier.ridAAD-3535-2020
person.identifier.ridB-2849-2008
person.identifier.ridC-1150-2009
person.identifier.scopus-author-id7202594379
person.identifier.scopus-author-id7102086109
person.identifier.scopus-author-id7102859165
person.identifier.scopus-author-id7202364148
person.identifier.scopus-author-id35415989000
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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