Microstructure and mechanical properties of as-cast and annealed high strength low alloy steel.

dc.contributor.authorOliveira, Bárbara Ferreira de
dc.contributor.authorOliveira, Michel Picanço
dc.contributor.authorHernandez Terrones, Luis Augusto
dc.contributor.authorAzevedo, Márcia Giardinieri de
dc.contributor.authorGodefroid, Leonardo Barbosa
dc.date.accessioned2020-09-07T20:08:55Z
dc.date.available2020-09-07T20:08:55Z
dc.date.issued2019
dc.description.abstractThis paper presents a study on the microstructure and mechanical properties of a microalloyed HSLA steel solidified by continuous casting process and annealed at 1100 °C for 1 hour. The techniques of confocal microscopy, scanning electron microscopy and hardness, tensile and Charpy mechanical tests were used. The results of this research showed that the microstructure of the sample in the as-received condition was mainly composed of acicular ferrite and aggregates of ferrite and carbides. Non-metallic inclusion characterization of as-cast steel showed that calcium content was not enough to modify the morphology of some aluminates. After thermal treatment, the initial microstructure was transformed into polygonal ferrite and pearlite. In both conditions, different types of precipitates were found, which were classified according to their distribution in the microstructure. The steel with solidification structure showed a higher tensile strength, but its application would be unlikely in components that require good impact strength.pt_BR
dc.identifier.citationOLIVEIRA, B. F. de et al. Microstructure and mechanical properties of as-cast and annealed high strength low alloy steel. Journal of Materials Science Research, v. 8, n. 4, 2019. Disponível em: <http://www.ccsenet.org/journal/index.php/jmsr/article/view/0/40481>. Acesso em: 10 mar. 2020.pt_BR
dc.identifier.doihttp://dx.doi.org/10.5539/jmsr.v8n4p1pt_BR
dc.identifier.issn1927-0593
dc.identifier.urihttp://www.repositorio.ufop.br/handle/123456789/12697
dc.language.isopt_BRpt_BR
dc.rightsabertopt_BR
dc.rights.licenseThis is an open-access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/4.0/). Fonte: o próprio artigo.pt_BR
dc.subjectMicroalloyed steelpt_BR
dc.subjectContinuous castingpt_BR
dc.subjectThermal treatmentpt_BR
dc.titleMicrostructure and mechanical properties of as-cast and annealed high strength low alloy steel.pt_BR
dc.typeArtigo publicado em periodicopt_BR
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