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Activation Energy Measurement of Oxygen Ordering in a Nb-Ti Alloy by Anelastic Relaxation

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dc.contributor.authorNiemeyer, T.c. [UNESP]
dc.contributor.authorGimenez, J.m.a. [UNESP]
dc.contributor.authorAlmeida, L.h. [UNESP]
dc.contributor.authorGrandini, C.r. [UNESP]
dc.contributor.authorFlorĂȘncio, O.
dc.contributor.institutionUniversidade Federal de SĂŁo Carlos
dc.contributor.institutionUniversidade de SĂŁo Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2021-07-14T10:28:04Z
dc.date.available2021-07-14T10:28:04Z
dc.date.issued2002-06
dc.description.abstractMetals with bcc structure are able to dissolve large amounts of interstitial element atoms in the form of oxygen. These atoms diffuse through the lattice by jumping into octahedral sites with equivalent symmetry, causing strong alterations in the anelastic behavior. This paper reports on a study of Snoek relaxation in Nb-Ti alloys with oxygen in solid solution, based on internal friction as a function of temperature. The internal friction measurements were taken in a torsion pendulum operating at temperatures in the range of 350 to 650 K, with frequencies varying from 6 to 36 Hz. The results show relaxation spectra in which thermally activated relaxation peaks produced by the stress-induced ordering of oxygen atoms around niobium atoms of the metallic matrix were identified.en
dc.description.affiliationUniversidade Federal de SĂŁo Carlos, Departamento de FĂ­sica
dc.description.affiliationUniversidade de SĂŁo Paulo, Instituto de FĂ­sica de SĂŁo Carlos
dc.description.affiliationUniversidade Estadual Paulista, Departamento de FĂ­sica
dc.description.affiliationUnespUniversidade Estadual Paulista, Departamento de FĂ­sica
dc.format.extent143-147
dc.identifierhttp://dx.doi.org/10.1590/S1516-14392002000200010
dc.identifier.citationMaterials Research. SĂŁo Carlos, SP, Brazil: ABM, ABC, ABPol, v. 5, n. 2, p. 143-147, 2002.
dc.identifier.dimensionspub.1014591680
dc.identifier.doi10.1590/S1516-14392002000200010
dc.identifier.fileS1516-14392002000200010.pdf
dc.identifier.issn1516-1439
dc.identifier.issn1980-5373
dc.identifier.orcid0000-0002-3336-309X
dc.identifier.orcid0000-0003-3655-4470
dc.identifier.orcid0000-0002-8887-8226
dc.identifier.scieloS1516-14392002000200010
dc.identifier.urihttp://hdl.handle.net/11449/211687
dc.language.isoeng
dc.publisherABM, ABC, ABPol
dc.publisherFapUNIFESP (SciELO)
dc.relation.ispartofMaterials Research
dc.rights.accessRightsAcesso abertopt
dc.sourceSciELO
dc.sourceDimensions
dc.subjectanelasticityen
dc.subjectinternal frictionen
dc.subjectdiffusionen
dc.subjectniobium-titanium alloysen
dc.titleActivation Energy Measurement of Oxygen Ordering in a Nb-Ti Alloy by Anelastic Relaxationen
dc.typeArtigopt
dspace.entity.typePublication

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