Microstructural characterization of Zr1Nb alloy after hot rolling

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dc.contributor.authorSOUZA, ARMANDO C.pt_BR
dc.contributor.authorARISTONE, FLAVIOpt_BR
dc.contributor.authorROSSI, JESUALDO L.pt_BR
dc.contributor.authorMARTINEZ, LUIS G.pt_BR
dc.contributor.authorCIONE, FRANCISCO C.pt_BR
dc.contributor.authorTSAKIROPOULOS, PANOSpt_BR
dc.contributor.authorGRANDINI, CARLOS R.pt_BR
dc.contributor.authorSILVA, WALLACE F. dapt_BR
dc.coverageInternacionalpt_BR
dc.date.accessioned2019-08-01T17:12:10Z
dc.date.available2019-08-01T17:12:10Z
dc.date.issued2019pt_BR
dc.description.abstractThe nuclear industries have large interest on the development of new alloys involving zirconium (Zr) because this material presents extraordinary mechanical properties, outstanding resistance to corrosion and high permeability to thermal neutrons, being suitable for applications in areas such as energy and human health. The alloy studied in this paper is formed by Zr and niobium (Nb), normally expressed as Zr1Nb. These two elements have large chemical affinities with oxygen, carbon, and nitrogen, elements that normally are responsible for a series of damages in the alloy. The principal goal of this work is to obtain Zr1Nb alloys and to perform microstructural characterizations before and after the hot rolling process. The resulting alloys were subjected to a process of heat treatment, the temperature was increased at a rate of 10 K/min up to 1273 K and maintained for 2 h, after which it was cooled down at −10 K/min until room temperature, with the only purpose of relieving residual stresses. The next step was to apply the hot rolling process to the alloy. The sample initially measured, approximately, 1.5 cm of thickness when it was inserted into the furnace at 1203 K to start the hot rolling. Every pass on the hot rolling reduced the thickness by 0.5 mm, originating uniform and homogeneous samples of 2.5mm thickness. Auxiliary technical tools, such as XRD (X-Ray Diffraction), SEM (Scanning Electron Microscopy), and EDS (Energy Dispersive X-Ray Spectroscopy), were used to analyze the microstructure of the samples before and after the hot rolling process. The XRD results show the formation of only a single α-HCP (Hexagonal Close Packed) phase for our samples, indicating that they are free of other phases that can damage the material. This result is consistent and coherent with both SEM and EDS analysis. The observed homogeneity of our samples is very good; proving that both techniques employed to obtain Zr1Nb as well as the hot rolling process was well succeeded. Therefore, the obtained alloy can be directly used in the pipes of nuclear combustible industries.pt_BR
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)pt_BR
dc.description.sponsorshipIDCNPq: 407840/13-3pt_BR
dc.format.extent216-224pt_BR
dc.identifier.citationSOUZA, ARMANDO C.; ARISTONE, FLAVIO; ROSSI, JESUALDO L.; MARTINEZ, LUIS G.; CIONE, FRANCISCO C.; TSAKIROPOULOS, PANOS; GRANDINI, CARLOS R.; SILVA, WALLACE F. da. Microstructural characterization of Zr1Nb alloy after hot rolling. <b>International Journal of Refractory Metals & Hard Materials</b>, v. 80, p. 216-224, 2019. DOI: <a href="https://dx.doi.org/10.1016/j.ijrmhm.2018.12.015">10.1016/j.ijrmhm.2018.12.015</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/30002.
dc.identifier.doi10.1016/j.ijrmhm.2018.12.015pt_BR
dc.identifier.issn0263-4368pt_BR
dc.identifier.orcid0000-0001-7707-7821pt_BR
dc.identifier.orcid0000-0002-8304-9939pt_BR
dc.identifier.orcidhttps://orcid.org/0000-0001-7707-7821
dc.identifier.orcidhttps://orcid.org/0000-0002-8304-9939
dc.identifier.percentilfi74.963
dc.identifier.percentilfiCiteScore85.00
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/30002
dc.identifier.vol80pt_BR
dc.relation.ispartofInternational Journal of Refractory Metals & Hard Materialspt_BR
dc.rightsopenAccesspt_BR
dc.subjectmicrostructure
dc.subjectzirconium alloys
dc.subjectniobium alloys
dc.subjectnitrites
dc.subjectoxide minerals
dc.subjecttransition element alloys
dc.subjectmelting
dc.subjectrolling
dc.titleMicrostructural characterization of Zr1Nb alloy after hot rollingpt_BR
dc.typeArtigo de periódicopt_BR
dspace.entity.typePublication
ipen.autorFRANCISCO CARLOS CEONI
ipen.autorLUIS GALLEGO MARTINEZ
ipen.autorJESUALDO LUIZ ROSSI
ipen.autorARMANDO CIRILO DE SOUZA
ipen.codigoautor8789
ipen.codigoautor397
ipen.codigoautor502
ipen.codigoautor10160
ipen.contributor.ipenauthorFRANCISCO CARLOS CEONI
ipen.contributor.ipenauthorLUIS GALLEGO MARTINEZ
ipen.contributor.ipenauthorJESUALDO LUIZ ROSSI
ipen.contributor.ipenauthorARMANDO CIRILO DE SOUZA
ipen.date.recebimento19-08
ipen.identifier.fi3.407pt_BR
ipen.identifier.fiCiteScore5.5
ipen.identifier.ipendoc25793pt_BR
ipen.identifier.iwosWoSpt_BR
ipen.range.fi3.000 - 4.499
ipen.range.percentilfi50.00 - 74.99
ipen.type.genreArtigo
relation.isAuthorOfPublication458cd889-1f0c-4474-9669-feef373dcd21
relation.isAuthorOfPublicationd024d136-878b-4d31-bb7e-c1cb06324cfb
relation.isAuthorOfPublicationc30c7f95-0303-41bd-aa41-1fc8c12ec2ab
relation.isAuthorOfPublicationcf0aeba1-7c12-438a-8397-35b190997cb8
relation.isAuthorOfPublication.latestForDiscoverycf0aeba1-7c12-438a-8397-35b190997cb8
sigepi.autor.atividadeCIONE, FRANCISCO C.:8789:730:Npt_BR
sigepi.autor.atividadeMARTINEZ, LUIS G.:397:730:Npt_BR
sigepi.autor.atividadeROSSI, JESUALDO L.:502:730:Npt_BR
sigepi.autor.atividadeSOUZA, ARMANDO C.:10160:730:Spt_BR
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