Microstructural characterization of U-7,5Nb-2,5Zr alloy after ageing and constrained fatigue

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dc.contributor.authorMORAIS, N.W.pt_BR
dc.contributor.authorSCHON, C.G.pt_BR
dc.contributor.authorROSSI, J.L.pt_BR
dc.contributor.authorFABRIM, Z.E.pt_BR
dc.contributor.authorMUCSI, C.S.pt_BR
dc.coverageNacionalpt_BR
dc.creator.eventoCONGRESSO BRASILEIRO DE ENGENHARIA E CIÊNCIA DOS MATERIAIS, 24.pt_BR
dc.date.accessioned2023-02-09T15:20:10Z
dc.date.available2023-02-09T15:20:10Z
dc.date.evento6-10 de novembro, 2022pt_BR
dc.description.abstractU-7,5Nb-2,5Zr cladded in zircaloy-4 is one of the most studied fuel prototypes. The Nb and Zr are added to the U to stabilize the BCC gamma phase and grant mechanical and swelling resistance. The U-7,5Nb-2,5Zr undergoes the gamma to alpha" phase transformation, generating compressive stresses due to the volume reduction. The alpha" phase also can transform to a combination of alpha+gamma2 phase (equilibrium phases), which are known to be hard and brittle. This work has the objective to test the effect of ageing the gamma to alpha" phase in thermal cycling of a U- 7,5Nb-2,5Zr cladded in zircaloy-4 piece. A co-limited specimen was aged and thermally cycled in a dilatometry experiment. The samples were characterized through X-ray diffraction and metallography. The results show that the gamma to alpha" phase transformations occur at the beginning of the initial ageing, followed by stress relief. During the cycling, the sample demonstrated non-equal thermal strains and presented fractures along with the U matrix.pt_BR
dc.event.siglaCBECiMatpt_BR
dc.identifier.citationMORAIS, N.W.; SCHON, C.G.; ROSSI, J.L.; FABRIM, Z.E.; MUCSI, C.S. Microstructural characterization of U-7,5Nb-2,5Zr alloy after ageing and constrained fatigue. In: CONGRESSO BRASILEIRO DE ENGENHARIA E CIÊNCIA DOS MATERIAIS, 24., 6-10 de novembro, 2022, Águas de Lindóia, SP. <b>Resumo...</b> Disponível em: http://repositorio.ipen.br/handle/123456789/33788.
dc.identifier.orcid0000-0002-8304-9939pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0002-8304-9939
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/33788
dc.local.eventoÁguas de Lindóia, SPpt_BR
dc.rightsopenAccesspt_BR
dc.titleMicrostructural characterization of U-7,5Nb-2,5Zr alloy after ageing and constrained fatiguept_BR
dc.typeResumo de eventos científicospt_BR
dspace.entity.typePublication
ipen.autorZACARIAS EDUARDO FABRIM
ipen.autorCRISTIANO STEFANO MUCSI
ipen.autorJESUALDO LUIZ ROSSI
ipen.autorNATHANAEL WAGNER SALES MORAIS
ipen.codigoautor15749
ipen.codigoautor507
ipen.codigoautor502
ipen.codigoautor14833
ipen.contributor.ipenauthorZACARIAS EDUARDO FABRIM
ipen.contributor.ipenauthorCRISTIANO STEFANO MUCSI
ipen.contributor.ipenauthorJESUALDO LUIZ ROSSI
ipen.contributor.ipenauthorNATHANAEL WAGNER SALES MORAIS
ipen.date.recebimento23-02
ipen.event.datapadronizada2022pt_BR
ipen.identifier.ipendoc29422pt_BR
ipen.notas.internasResumopt_BR
ipen.type.genreResumo
relation.isAuthorOfPublication975257f8-57d5-4699-af9a-7bcd3ee9898c
relation.isAuthorOfPublication58fc8404-272e-4946-9a1d-b32060dcb5ec
relation.isAuthorOfPublicationc30c7f95-0303-41bd-aa41-1fc8c12ec2ab
relation.isAuthorOfPublication9db07170-d663-4c47-84f6-47a0ee404f0f
relation.isAuthorOfPublication.latestForDiscovery9db07170-d663-4c47-84f6-47a0ee404f0f
sigepi.autor.atividadeMUCSI, C.S.:507:730:Npt_BR
sigepi.autor.atividadeFABRIM, Z.E.:15749:730:Npt_BR
sigepi.autor.atividadeROSSI, J.L.:502:730:Npt_BR
sigepi.autor.atividadeMORAIS, N.W.:14833:730:Spt_BR
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