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
Fe-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 Ele...
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| Format: | Article |
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MDPI AG
2023-03-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/13/3/520 |
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| author | Nádia Marcuz Rafael Parra Ribeiro Elidiane Cipriano Rangel Nilson Cristino da Cruz Diego Rafael Nespeque Correa |
| author_facet | Nádia Marcuz Rafael Parra Ribeiro Elidiane Cipriano Rangel Nilson Cristino da Cruz Diego Rafael Nespeque Correa |
| author_sort | Nádia Marcuz |
| collection | DOAJ |
| description | Fe-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 (Fe<sub>2</sub>O<sub>3</sub>), 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 Fe<sub>2</sub>O<sub>3</sub> 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. |
| first_indexed | 2024-03-11T06:11:31Z |
| format | Article |
| id | doaj.art-a9584d4621d94b4f96f9007bc87e9046 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-11T06:11:31Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-a9584d4621d94b4f96f9007bc87e90462023-11-17T12:38:54ZengMDPI AGMetals2075-47012023-03-0113352010.3390/met13030520The 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 MaterialNádia Marcuz0Rafael Parra Ribeiro1Elidiane Cipriano Rangel2Nilson Cristino da Cruz3Diego Rafael Nespeque Correa4FATec—Faculdade de Tecnologia Prof. Wilson Roberto Ribeiro de Camargo, Tatuí 18280-000, SP, BrazilLaboratory of Technological Plasmas (LaPTec), Science and Technology Institute of Sorocaba (ICTS), São Paulo State University (UNESP), Sorocaba 18087-180, SP, BrazilLaboratory of Technological Plasmas (LaPTec), Science and Technology Institute of Sorocaba (ICTS), São Paulo State University (UNESP), Sorocaba 18087-180, SP, BrazilLaboratory of Technological Plasmas (LaPTec), Science and Technology Institute of Sorocaba (ICTS), São Paulo State University (UNESP), Sorocaba 18087-180, SP, BrazilLaboratory of Anelasticity and Biomaterials, School of Sciences, São Paulo State University (UNESP), Bauru 17033-360, SP, BrazilFe-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 (Fe<sub>2</sub>O<sub>3</sub>), 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 Fe<sub>2</sub>O<sub>3</sub> 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.https://www.mdpi.com/2075-4701/13/3/520medical deviceslow-carbon steelPEOTacorrosion |
| spellingShingle | Nádia Marcuz Rafael Parra Ribeiro Elidiane Cipriano Rangel Nilson Cristino da Cruz Diego Rafael Nespeque Correa 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 Metals medical devices low-carbon steel PEO Ta corrosion |
| title | 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 |
| title_full | 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 |
| title_fullStr | 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 |
| title_full_unstemmed | 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 |
| title_short | 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 |
| title_sort | 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 |
| topic | medical devices low-carbon steel PEO Ta corrosion |
| url | https://www.mdpi.com/2075-4701/13/3/520 |
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