Effect of niobium on microstructure and mechanical properties of a hypereutectoid steel.

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dc.contributor.authorPessoa, Ricardo Amorim
dc.contributor.authorPorcaro, Rodrigo Rangel
dc.contributor.authorCândido, Luiz Cláudio
dc.contributor.authorPereda, Beatriz
dc.contributor.authorLopez, Beatriz
dc.date.accessioned2023-07-10T18:59:20Z
dc.date.available2023-07-10T18:59:20Z
dc.date.issued2022pt_BR
dc.description.abstractHigh-carbon steels have been used to high-strength steel wire and strands for prestressing concrete. The necessity of high-strength levels at increasingly larger diameters of wire rods is a technological challenge. Two steels with and without Nb were obtained in a steel mill, submitted to detailed microstructural (previous austenitic grain size, pearlite interlamellar spacing and colony size) and mechanical characterization through tensile tests and hardness. Hot torsion and dilatometry tests were performed to simulate steels processing and to verify the influence of Nb on phase transformation. Adding Nb to steel resulted in a refinement in austenitic grain size and pearlite colonies but had no effect on pearlitic interlamellar spacing. There was a decrease at the start transformation temperature austenite/pearlite and therefore an increase in the hardenability of the Nb-added steel. Finally, Nb addition proved to be a technical and economical way to increase tensile strength and to reduce the variability of the mechanical properties.pt_BR
dc.identifier.citationPESSOA, R. A. et al. Effect of niobium on microstructure and mechanical properties of a hypereutectoid steel. Materials Research, v. 25, atigo e20220132, set. 2022. Disponível em: <https://www.scielo.br/j/mr/a/cMtY7hVDbVzwGsHyZtJR63s/?lang=en>. Acesso em: 15 mar. 2023.pt_BR
dc.identifier.doihttps://doi.org/10.1590/1980-5373-MR-2022-0132pt_BR
dc.identifier.issn1980-5373
dc.identifier.urihttp://www.repositorio.ufop.br/jspui/handle/123456789/16919
dc.language.isoen_USpt_BR
dc.rightsabertopt_BR
dc.rights.licenseThis is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Fonte: PDF do artigo.pt_BR
dc.subjectHigh-carbon steelpt_BR
dc.subjectNiobiumpt_BR
dc.subjectMicrostructurept_BR
dc.subjectMechanical propertiespt_BR
dc.subjectWire rodpt_BR
dc.titleEffect of niobium on microstructure and mechanical properties of a hypereutectoid steel.pt_BR
dc.typeArtigo publicado em periodicopt_BR
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