The Effect of PEO Treatment in a Ta-Rich Electrolyte on the Surface and Corrosion Properties of Low-Carbon Steel for Potential Use as a Biomedical Material

Página do item simplificado
dc.contributor.authorMarcuz, Nádia
dc.contributor.authorRibeiro, Rafael Parra [UNESP]
dc.contributor.authorRangel, Elidiane Cipriano [UNESP]
dc.contributor.authorda Cruz, Nilson Cristino [UNESP]
dc.contributor.authorCorrea, Diego Rafael Nespeque [UNESP]
dc.contributor.institutionWilson Roberto Ribeiro de Camargo
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.date.accessioned2023-07-29T16:11:20Z
dc.date.available2023-07-29T16:11:20Z
dc.date.issued2023-03-01
dc.description.abstractFe-based materials have extensive applications in the building and automobile industries due to their excellent mechanical properties and low cost. However, their biomedical employment is restricted by the corrosion propensity when in contact with bodily fluids. In this study, single-step Plasma Electrolytic Oxidation, PEO, treatment in Ta-rich electrolyte was used, for the first time, to improve the corrosion resistance of low-carbon steel SAE 1020 for possible use as device implants. The effect of the applied voltage on the chemical and phase composition, topography, wettability, roughness, and corrosion properties were addressed. The results indicated that the Fe-based oxide coatings had a rough and hydrophilic surface, increasing the Ta content with the applied potential. The phase composition of the coatings was mainly composed of hematite (Fe2O3), with the Fourier-transform Infrared Spectroscopy, FTIR, spectrums indicating the presence of some absorbed water and organic molecules. The corrosion resistance of the PEO-treated samples was better than the substrate against saline solution (0.9% NaCl) due to the Fe2O3 growth decorated with Ta particles, especially the sample treated at 200 V. The results state that Ta-enriched Fe-based oxide coatings could significantly improve the applicability of low-carbon steel SAE 1020 as a low-cost biomaterial, particularly for medical devices.en
dc.description.affiliationFATec—Faculdade de Tecnologia Prof Wilson Roberto Ribeiro de Camargo, SP
dc.description.affiliationLaboratory of Technological Plasmas (LaPTec) Science and Technology Institute of Sorocaba (ICTS) São Paulo State University (UNESP), SP
dc.description.affiliationLaboratory of Anelasticity and Biomaterials School of Sciences São Paulo State University (UNESP), SP
dc.description.affiliationUnespLaboratory of Technological Plasmas (LaPTec) Science and Technology Institute of Sorocaba (ICTS) São Paulo State University (UNESP), SP
dc.description.affiliationUnespLaboratory of Anelasticity and Biomaterials School of Sciences São Paulo State University (UNESP), SP
dc.identifierhttp://dx.doi.org/10.3390/met13030520
dc.identifier.citationMetals, v. 13, n. 3, 2023.
dc.identifier.doi10.3390/met13030520
dc.identifier.issn2075-4701
dc.identifier.scopus2-s2.0-85152661760
dc.identifier.urihttp://hdl.handle.net/11449/249865
dc.language.isoeng
dc.relation.ispartofMetals
dc.sourceScopus
dc.subjectcorrosion
dc.subjectlow-carbon steel
dc.subjectmedical devices
dc.subjectPEO
dc.subjectTa
dc.titleThe Effect of PEO Treatment in a Ta-Rich Electrolyte on the Surface and Corrosion Properties of Low-Carbon Steel for Potential Use as a Biomedical Materialen
dc.typeArtigo
unesp.author.orcid0000-0003-4042-6738[2]
unesp.author.orcid0000-0001-7909-190X[3]
unesp.author.orcid0000-0002-1803-6488[5]

Arquivos

Coleções

Artigos - Engenharia de Controle e Automação - Sorocaba