Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/349629
Full metadata record
DC FieldValueLanguage
dc.contributor.CRUESPUNIVERSIDADE ESTADUAL DE CAMPINASpt_BR
dc.contributor.authorunicampFonseca, Solange Tamara da-
dc.contributor.authorunicampMei, Paulo Roberto-
dc.typeArtigopt_BR
dc.titleDevelopment of niobium microalloyed steel for railway wheel with pearlitic bainitic microstructurept_BR
dc.contributor.authorMinicucci, Domingos José-
dc.contributor.authorFonseca, Solange Tamara-
dc.contributor.authorBoas, Renato Lyra Villas-
dc.contributor.authorGoldenstein, Hélio-
dc.contributor.authorMei, Paulo Roberto-
dc.subjectNióbiopt_BR
dc.subject.otherlanguageNiobiumpt_BR
dc.description.abstractHeavy haul transportation (load over 30 tons/axle), as well as the axle load, has been more and more used in Brazil and worldwide. The stress generated in the wheel-rail contact with loads up to 30 tons/axle is around 760 MPa, which causes premature wear and cracks of conventional wheels (AAR (Association of American Railroads) class C). Microalloyed wheels are fundamental on heavy haul transport, whose main function is to combine high hardness, ductility, and yield strength of the material in order to prevent shelling. The main purpose of this research is to develop a new microalloyed wheel steel with niobium addition that meets all the requirements of the AAR class D material with mixed microstructure composed of pearlite and bainite. The 0.71C/0.020Nb steel developed in this study (Nb material) for railroad achieved the standards required for AAR class D in all mechanical properties, with fracture toughness higher than the usual vanadium microalloyed steel used in comparison. The Continuous Cooling Transformation (CCT) diagram showed the presence of bainite even at very low cooling rate, in the range between 0.3 - 2 °C/s. These cooling rates to form bainite are much lower than those observed in other steels with similar compositionpt_BR
dc.relation.ispartofMaterials researchpt_BR
dc.publisher.citySão Carlos, SPpt_BR
dc.publisher.countryBrasilpt_BR
dc.publisherUFSCar/Departamento de Engenharia de Materiaispt_BR
dc.date.issued2020-
dc.date.monthofcirculationJan.pt_BR
dc.language.isoengpt_BR
dc.description.volume22pt_BR
dc.description.issuenumber6pt_BR
dc.rightsAbertopt_BR
dc.sourceSCIELOpt_BR
dc.identifier.issn1516-1439pt_BR
dc.identifier.eissn1980-5373pt_BR
dc.identifier.doi10.1590/1980-5373-mr-2019-0324pt_BR
dc.identifier.urlhttps://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000600223pt_BR
dc.date.available2020-09-18T18:25:00Z-
dc.date.accessioned2020-09-18T18:25:00Z-
dc.description.provenanceSubmitted by Susilene Barbosa da Silva (susilene@unicamp.br) on 2020-09-18T18:25:00Z No. of bitstreams: 0. Added 1 bitstream(s) on 2021-01-07T20:39:50Z : No. of bitstreams: 1 S1516-14392019000600223.pdf: 5941010 bytes, checksum: 54b5f805208b5f75dd547e0820345737 (MD5) Bitstreams deleted on 2021-01-08T14:10:22Z: S1516-14392019000600223.pdf,. Added 1 bitstream(s) on 2021-01-08T14:13:33Z : No. of bitstreams: 1 S1516-14392019000600223.pdf: 5941010 bytes, checksum: 54b5f805208b5f75dd547e0820345737 (MD5) Bitstreams deleted on 2021-01-13T13:27:14Z: S1516-14392019000600223.pdf,. Added 1 bitstream(s) on 2021-01-13T13:29:33Z : No. of bitstreams: 1 S1516-14392019000600223.pdf: 5941018 bytes, checksum: cc31cc29f07a163d2ee601eaeae7d6dc (MD5)en
dc.description.provenanceMade available in DSpace on 2020-09-18T18:25:00Z (GMT). No. of bitstreams: 0 Previous issue date: 2020en
dc.identifier.urihttp://repositorio.unicamp.br/jspui/handle/REPOSIP/349629-
dc.contributor.departmentsem informaçãopt_BR
dc.contributor.departmentDepartamento de Engenharia de Manufatura e Materiaispt_BR
dc.contributor.unidadeFaculdade de Engenharia Mecânicapt_BR
dc.subject.keywordMicroalloyed railway wheelpt_BR
dc.subject.keywordHeavy haulpt_BR
dc.identifier.sourceS1516-14392019000600223pt_BR
dc.creator.orcidsem informaçãopt_BR
dc.creator.orcid0000-0002-6150-9674pt_BR
dc.type.formArtigopt_BR
Appears in Collections:FEM - Artigos e Outros Documentos

Files in This Item:
File Description SizeFormat 
S1516-14392019000600223.pdf5.8 MBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.