Wear and corrosion resistance of Nb-V carbide layers produced in vermicular cast iron using TRD treatments

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorUniv Tecnol Fed Parana-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.creatorMariani, Fabio Edson-
Autor(es): dc.creatorTakeya, Gustavo Satoru-
Autor(es): dc.creatorNeto Lombardi, Amadeu-
Autor(es): dc.creatorPicone, Carlos Alberto [UNESP]-
Autor(es): dc.creatorCasteletti, Luiz Carlos-
Data de aceite: dc.date.accessioned2022-02-22T00:21:27Z-
Data de disponibilização: dc.date.available2022-02-22T00:21:27Z-
Data de envio: dc.date.issued2020-12-10-
Data de envio: dc.date.issued2020-12-10-
Data de envio: dc.date.issued2020-09-15-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.surfcoat.2020.126050-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/197829-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/197829-
Descrição: dc.descriptionNb, V and Nb-V carbide layers were produced by means of the diffusion thermo-reactive treatment (TRD) in a vermicular cast iron, in baths composed of sodium borate, aluminum, ferro-niobium and/or ferro-vanadium, at 1000 degrees C with 2 h treatment time. Austempering was carried out after the TRD treatment in a molten salt bath at 300 degrees C. The samples were characterized by optical microscopy, XRD, Vickers microhardness, Daimler-Benz Rockwell-C, microadhesive wear tests and corrosion tests using potentiodynamic polarization tests. The TRD treatments were highly efficient in the production of uniform carbide layers, with thicknesses above 25 mu m and with good adhesions to the substrates. The layers showed hardness above 2300, 2500 and 3050 HV for the cases of Nb, V and Nb-V carbides, respectively. The wear resistance of the samples was increased from 10 to 30x in relation to the austempered substrate. The layers also showed corrosion resistance much higher than that of the substrate. The results obtained indicated the great effectiveness of the TRD treatment for the production of high performance carbide layers in vermicular cast iron.-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionUniv Sao Paulo, Sao Carlos Sch Engn, Prod Engn Dept, 400 Trabalhador Saocarlense Ave, BR-13140170 Sao Carlos, SP, Brazil-
Descrição: dc.descriptionUniv Sao Paulo, Sao Carlos Sch Engn, Mat Engn Dept, 1100 Joao Dagnone Ave, BR-13140170 Sao Carlos, SP, Brazil-
Descrição: dc.descriptionUniv Tecnol Fed Parana, Mech Engn Dept, 3131 Pioneiros Ave, BR-86036370 Londrina, Parana, Brazil-
Descrição: dc.descriptionSao Paulo State Univ, 56 Brasil Ave, BR-15385000 Ilha Solteira, SP, Brazil-
Descrição: dc.descriptionSao Paulo State Univ, 56 Brasil Ave, BR-15385000 Ilha Solteira, SP, Brazil-
Descrição: dc.descriptionCAPES: 001-
Descrição: dc.descriptionCNPq: 305294/2015-6-
Descrição: dc.descriptionCNPq: 141416/2016-5-
Formato: dc.format8-
Idioma: dc.languageen-
Publicador: dc.publisherElsevier B.V.-
Relação: dc.relationSurface & Coatings Technology-
???dc.source???: dc.sourceWeb of Science-
Palavras-chave: dc.subjectVermicular cast iron-
Palavras-chave: dc.subjectTRD treatment-
Palavras-chave: dc.subjectAustempering-
Palavras-chave: dc.subjectWear-
Palavras-chave: dc.subjectCorrosion-
Título: dc.titleWear and corrosion resistance of Nb-V carbide layers produced in vermicular cast iron using TRD treatments-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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