Resistance evaluation to corrosion stainless steel used in vehicle exhaust

dc.contributor.authorPrateS, Paula Emília de Souza
dc.contributor.authorPrates, Glaucia Aparecida [UNESP]
dc.contributor.authorCaraschi, José Claudio [UNESP]
dc.contributor.authorSyed, Wasim Aluísio Prates
dc.contributor.institutionCetec - Fundação Centro Tecnológico de Minas Gerais
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.date.accessioned2018-12-11T17:32:19Z
dc.date.available2018-12-11T17:32:19Z
dc.date.issued2016-01-01
dc.description.abstractThis study aims to assess the resistance to corrosion of stainless steels used in the manufacture of part of automotive exhaust systems, especially as regards ethanol fuel condensation in the rear silencer of light vehicles. One synthetic solution of ethanol fuel condensation has been formulated based on chemical analyses from specimens of natural solutions collected directly from the vehicle while running during its cold phase, that is, within the first 505 seconds. The assessment of resistance to corrosion of ferritic stainless steels AISI 439 and 409, as compared to the austenitic steel AISI 304, was carried out when in the presence of a synthetic solution of ethanol fuel condensation. The comparative analysis of the potentiodynamic polarization curves of the steels studied indicates that there is no difference in behavior concerning the corrosion of these steels. In addition, no identification of a potential of pitting within these curves could be observed. Upon implementation of Dip-Dry tests, it could be verified that the steels do in fact have a similar behavior in that they did not undergo corrosion, only oxidation. It could therefore be concluded that all the stainless steels studied can be recommended for use in the rear silencer of light vehicles and that the choice of a ferritic stainless steel would be the most economical among the three steels studied.en
dc.description.affiliationCetec - Fundação Centro Tecnológico de Minas Gerais, Avenida José Cândido da Silveira
dc.description.affiliationUNESP Universidade Estadual Paulista, Rua Geraldo Alckmin, 519.
dc.description.affiliationUSP Universidade de São Paulo Faculdade de Ciencias Farmaceuticas de Ribeirao Preto
dc.description.affiliationUnespUNESP Universidade Estadual Paulista, Rua Geraldo Alckmin, 519.
dc.identifier.citationEspacios, v. 37, n. 30, 2016.
dc.identifier.issn0798-1015
dc.identifier.scopus2-s2.0-85018610794
dc.identifier.urihttp://hdl.handle.net/11449/178839
dc.language.isoeng
dc.relation.ispartofEspacios
dc.relation.ispartofsjr0,144
dc.rights.accessRightsAcesso restrito
dc.sourceScopus
dc.subjectCorrosion
dc.subjectEthanol
dc.subjectSteel
dc.titleResistance evaluation to corrosion stainless steel used in vehicle exhausten
dc.typeArtigo
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Ciências e Engenharia, Itapevapt
unesp.departmentEngenharia Industrial Madeireira - ICEpt

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