Corrosion resistance of WE43 Mg alloy in sodium chloride solution

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorUniversidade Federal de São Carlos (UFSCar)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorEmbraer-
Autor(es): dc.creatorPereira, Gualter Silva-
Autor(es): dc.creatorKoga, Guilherme Yuuki-
Autor(es): dc.creatorAvila, Julian Arnaldo [UNESP]-
Autor(es): dc.creatorBittencourt, Icaro Marino-
Autor(es): dc.creatorFernandez, Fernando-
Autor(es): dc.creatorMiyazaki, Marcos Hideki-
Autor(es): dc.creatorBotta, Walter José-
Autor(es): dc.creatorBose Filho, Waldek Wladimir-
Data de aceite: dc.date.accessioned2022-08-04T22:10:29Z-
Data de disponibilização: dc.date.available2022-08-04T22:10:29Z-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2021-10-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.matchemphys.2021.124930-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/221988-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/221988-
Descrição: dc.descriptionMg-based alloys are promising light materials for structural applications such as spare parts and assembles in aerospace manufacturing, but most of them are prone to corrode. In this work, the corrosion behavior of the WE43 Mg alloy in 0.6 M NaCl solution was appraised and compared to that of commercially pure Mg. Immersion tests allowed to assess the corrosion rate and the products formed on the exposed surfaces for up to 168 h. It was found that the corrosion rate of the WE43 was about 10- to 100-fold lower compared to commercially pure Mg. The onset of the corrosion resistance of the WE43 was ascribed to the nature of the corrosion product layer and its integrity on the surface, related to the low kinetics of the cathodic reaction of hydrogen gas evolution. The electrochemical impedance spectroscopy, potentiodynamic polarization, and kelvin probe force microscopy data reinforced the effect of the alloying elements on i) the formation of Y- and Nd-rich oxides, ii) the reduction of the intensity of the hydrogen gas evolution at the underneath surface, and iii) the formation of micro-anode second phases that did not compromise the corrosion resistance. Thus, this study contributes to the prospect of using alloys such as WE43 for applications where strong and light alloys with attractive corrosion resistance in a chloride-rich environment are requested.-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionEngineering School of São Carlos University of São Paulo Department of Materials Engineering, Av. Joao Dagnone, 1100 Jd. Sta Angelina-
Descrição: dc.descriptionFederal University of São Carlos Department of Materials Science and Engineering, Rod. Washington Luis, CEP, SP-
Descrição: dc.descriptionSão Paulo State University (UNESP) Campus of São João da Boa Vista, Av. Profa Isette Corrêa Fontão, 505, Jardim Das Flores, SP-
Descrição: dc.descriptionEmbraer, SP-
Descrição: dc.descriptionSão Paulo State University (UNESP) Campus of São João da Boa Vista, Av. Profa Isette Corrêa Fontão, 505, Jardim Das Flores, SP-
Idioma: dc.languageen-
Relação: dc.relationMaterials Chemistry and Physics-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectChloride solution-
Palavras-chave: dc.subjectCorrosion rate-
Palavras-chave: dc.subjectMagnesium-
Palavras-chave: dc.subjectMicro-anodes-
Palavras-chave: dc.subjectRare earth elements-
Título: dc.titleCorrosion resistance of WE43 Mg alloy in sodium chloride solution-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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