Electrochemical analysis of the ASTM F75 alloy at different pH values and temperatures

Fil: Kociubczyk, Alex Iván. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico (Nordeste). Instituto de Materiales de Misiones; Argentina.

Detalles Bibliográficos
Autores principales: Kociubczyk, Alex Iván, Méndez, Claudia Marcela, Gregorutti, Ricardo Walter, Ares, Alicia Esther
Formato: Artículo publishedVersion
Lenguaje:Inglés
Publicado: Wiley 2017
Materias:
Astm F75
Biomaterials
Corrosion
Ph
Temperature
Acceso en línea:https://hdl.handle.net/20.500.12219/4437
Aporte de:
Repositorio Institucional Digital de la UNaM (RIDUNAM) de Universidad Nacional de Misiones
id I77-R195-20.500.12219-4437
record_format dspace
spelling I77-R195-20.500.12219-44372024-06-04T11:19:46Z Electrochemical analysis of the ASTM F75 alloy at different pH values and temperatures Kociubczyk, Alex Iván Méndez, Claudia Marcela Gregorutti, Ricardo Walter Ares, Alicia Esther Astm F75 Biomaterials Corrosion Ph Temperature Fil: Kociubczyk, Alex Iván. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico (Nordeste). Instituto de Materiales de Misiones; Argentina. Fil: Kociubczyk, Alex Iván. Universidad Nacional de Misiones. Facultad de Ciencias Exactas, Químicas y Naturales. Instituto de Materiales de Misiones; Argentina. Fil: Méndez, Claudia Marcela. Universidad Nacional de Misiones. Facultad de Ciencias Exactas, Químicas y Naturales; Argentina. Fil: Gregorutti, Ricardo Walter. Comisión de Investigaciones científicas (Buenos Aires). Laboratorio de Entrenamiento Multidisciplinario para la Investigación Tecnológica; Argentina. Fil: Ares, Alicia Esther. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico (Nordeste). Instituto de Materiales de Misiones; Argentina. Fil: Ares, Alicia Esther. Universidad Nacional de Misiones. Facultad de Ciencias Exactas, Químicas y Naturales. Instituto de Materiales de Misiones; Argentina. The electrochemical behavior of ASTM F75 alloy was analyzed in a sodium chloride solution at pH values of 5, 7, and 9 and temperatures of 37 and 42 °C. The tests were performed in samples corresponding to two different regions of a hip prosthesis. Polarization curves showed that as pH increased the passivity range decreased. However, according to the complementary potentiodynamic–potentiostatic–potentiodynamic technique performed, the increase in the anodic current density was due to a change in the chromium oxidation state from Cr+3 to Cr+6 to form CrO4−2, and not to localized corrosion. On the other hand, neither the microstructure nor the temperature had influence on the electrochemical response of ASTM F75. The electrochemical impedance spectroscopy test showed that as pH increased, the passive film became more compact and thicker. However, its resistance decreased and the electrical double layer became more disordered, promoting diffusion processes of charged species. These results are in agreement with those obtained in the polarization curves, which showed an increase in the dissolution of the passive film, caused by the change in the chromium oxidation state, as pH increased. 2017-02-27 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion https://hdl.handle.net/20.500.12219/4437 eng info:eu-repo/semantics/altIdentifier/urn/https://onlinelibrary.wiley.com/doi/abs/10.1002/maco.201609394 CC0 1.0 Universal info:eu-repo/semantics/openAccess application/pdf application/pdf 1.074 MB Wiley
institution Universidad Nacional de Misiones
institution_str I-77
repository_str R-195
collection Repositorio Institucional Digital de la UNaM (RIDUNAM)
language Inglés
topic Astm F75
Biomaterials
Corrosion
Ph
Temperature
spellingShingle Astm F75
Biomaterials
Corrosion
Ph
Temperature
Kociubczyk, Alex Iván
Méndez, Claudia Marcela
Gregorutti, Ricardo Walter
Ares, Alicia Esther
Electrochemical analysis of the ASTM F75 alloy at different pH values and temperatures
topic_facet Astm F75
Biomaterials
Corrosion
Ph
Temperature
description Fil: Kociubczyk, Alex Iván. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico (Nordeste). Instituto de Materiales de Misiones; Argentina.
format Artículo
Artículo
publishedVersion
author Kociubczyk, Alex Iván
Méndez, Claudia Marcela
Gregorutti, Ricardo Walter
Ares, Alicia Esther
author_facet Kociubczyk, Alex Iván
Méndez, Claudia Marcela
Gregorutti, Ricardo Walter
Ares, Alicia Esther
author_sort Kociubczyk, Alex Iván
title Electrochemical analysis of the ASTM F75 alloy at different pH values and temperatures
title_short Electrochemical analysis of the ASTM F75 alloy at different pH values and temperatures
title_full Electrochemical analysis of the ASTM F75 alloy at different pH values and temperatures
title_fullStr Electrochemical analysis of the ASTM F75 alloy at different pH values and temperatures
title_full_unstemmed Electrochemical analysis of the ASTM F75 alloy at different pH values and temperatures
title_sort electrochemical analysis of the astm f75 alloy at different ph values and temperatures
publisher Wiley
publishDate 2017
url https://hdl.handle.net/20.500.12219/4437
work_keys_str_mv AT kociubczykalexivan electrochemicalanalysisoftheastmf75alloyatdifferentphvaluesandtemperatures
AT mendezclaudiamarcela electrochemicalanalysisoftheastmf75alloyatdifferentphvaluesandtemperatures
AT gregoruttiricardowalter electrochemicalanalysisoftheastmf75alloyatdifferentphvaluesandtemperatures
AT aresaliciaesther electrochemicalanalysisoftheastmf75alloyatdifferentphvaluesandtemperatures
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