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dc.contributor.author
Ferreirós, Pedro Antonio
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dc.contributor.author
von Tiedemann, S. O.
dc.contributor.author
Parkes, N.
dc.contributor.author
Gurah, D.
dc.contributor.author
King, D. J. M.
dc.contributor.author
Norman, P.
dc.contributor.author
Gilbert, M. R.
dc.contributor.author
Knowles, A. J.
dc.date.available
2023-12-19T11:25:33Z
dc.date.issued
2023-06
dc.identifier.citation
Ferreirós, Pedro Antonio; von Tiedemann, S. O.; Parkes, N.; Gurah, D.; King, D. J. M.; et al.; VNbCrMo refractory high-entropy alloy for nuclear applications; Elsevier; International Journal of Refractory Metals & Hard Materials; 113; 6-2023; 1-8
dc.identifier.issn
0263-4368
dc.identifier.uri
http://hdl.handle.net/11336/220718
dc.description.abstract
Refractory high-entropy alloys (RHEAs) with high melting points and low neutron absorption cross-section are sought for generation-IV fission and fusion reactors. A high throughput computational screening tool, Alloy Search and Predict (ASAP), was used to identify promising RHEA candidates from over 1 million four-element equimolar combinations. The selected VNbCrMo RHEA was further studied by CALPHAD to predict phase formation, which was compared to an experimentally produced ingot aged at 1200 °C. The VNbCrMo RHEA was found to constitute a majority bcc phase, with a 6% area fraction of C15-Laves formed at interdendritic regions, in contrast to the predictions of single-phase. The prediction of the yield strength by a model based upon edge dislocation mechanisms indicated 2.1 GPa at room temperature and 850 MPa at 1000 °C for the equimolar single bcc phase. The hardness of the alloy with C15-Laves was 748 HV (yield strength ∼2.4 GPa). Finally, the macroscopic neutron absorption cross-section was modelled for a wide range of energies. Displacements per atom per year and activation calculations, up to 1000 years after 2 years of continuous operation, in typical fusion and fission reactor scenarios were also performed using the inventory code FISPACT-II. This work gives new insight into the phase stability and performance of the VNbCrMo RHEA, which is compared with a similar design concept alloy, to assess the potential of novel RHEAs for use in advanced nuclear applications.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by/2.5/ar/
dc.subject
BCC
dc.subject
C15 LAVES
dc.subject
CCA
dc.subject
HEA
dc.subject
REFRACTORY
dc.subject
VNBCRMO
dc.subject.classification
Ingeniería de los Materiales
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dc.subject.classification
Ingeniería de los Materiales
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dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
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dc.title
VNbCrMo refractory high-entropy alloy for nuclear applications
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-12-18T16:08:27Z
dc.journal.volume
113
dc.journal.pagination
1-8
dc.journal.pais
Países Bajos
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dc.description.fil
Fil: Ferreirós, Pedro Antonio. Comisión Nacional de Energía Atómica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: von Tiedemann, S. O.. The University Of Birmingham (tub);
dc.description.fil
Fil: Parkes, N.. The University Of Birmingham (tub);
dc.description.fil
Fil: Gurah, D.. The University Of Birmingham (tub);
dc.description.fil
Fil: King, D. J. M.. Imperial College London; Reino Unido
dc.description.fil
Fil: Norman, P.. The University Of Birmingham (tub);
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Fil: Gilbert, M. R.. The University Of Birmingham (tub);
dc.description.fil
Fil: Knowles, A. J.. Imperial College London; Reino Unido
dc.journal.title
International Journal of Refractory Metals & Hard Materials
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.ijrmhm.2023.106200
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