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

Autores
Kociubczyk, Alex Iván; Méndez, Claudia Marcela; Gregorutti, Ricardo Walter; Ares, Alicia Esther
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
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 ofASTMF75. 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.
Materia
Ingeniería de los Materiales
ASTM F75
biomaterials
corrosion
pH
temperature
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-nd/4.0/
Repositorio
CIC Digital (CICBA)
Institución
Comisión de Investigaciones Científicas de la Provincia de Buenos Aires
OAI Identificador
oai:digital.cic.gba.gob.ar:11746/8156

id CICBA_afeb1cdb21c1a9870118d56b838e6b11
oai_identifier_str oai:digital.cic.gba.gob.ar:11746/8156
network_acronym_str CICBA
repository_id_str 9441
network_name_str CIC Digital (CICBA)
spelling Electrochemical analysis of the ASTM F75 alloy at different pH values and temperaturesKociubczyk, Alex IvánMéndez, Claudia MarcelaGregorutti, Ricardo WalterAres, Alicia EstherIngeniería de los MaterialesASTM F75biomaterialscorrosionpHtemperatureThe 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 ofASTMF75. 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.Wiley2017-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttps://digital.cic.gba.gob.ar/handle/11746/8156enginfo:eu-repo/semantics/altIdentifier/doi/10.1002/maco.201609394info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-nd/4.0/reponame:CIC Digital (CICBA)instname:Comisión de Investigaciones Científicas de la Provincia de Buenos Airesinstacron:CICBA2025-09-04T09:43:43Zoai:digital.cic.gba.gob.ar:11746/8156Institucionalhttp://digital.cic.gba.gob.arOrganismo científico-tecnológicoNo correspondehttp://digital.cic.gba.gob.ar/oai/snrdmarisa.degiusti@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:94412025-09-04 09:43:43.908CIC Digital (CICBA) - Comisión de Investigaciones Científicas de la Provincia de Buenos Airesfalse
dc.title.none.fl_str_mv Electrochemical analysis of the ASTM F75 alloy at different pH values and temperatures
title Electrochemical analysis of the ASTM F75 alloy at different pH values and temperatures
spellingShingle Electrochemical analysis of the ASTM F75 alloy at different pH values and temperatures
Kociubczyk, Alex Iván
Ingeniería de los Materiales
ASTM F75
biomaterials
corrosion
pH
temperature
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
dc.creator.none.fl_str_mv Kociubczyk, Alex Iván
Méndez, Claudia Marcela
Gregorutti, Ricardo Walter
Ares, Alicia Esther
author Kociubczyk, Alex Iván
author_facet Kociubczyk, Alex Iván
Méndez, Claudia Marcela
Gregorutti, Ricardo Walter
Ares, Alicia Esther
author_role author
author2 Méndez, Claudia Marcela
Gregorutti, Ricardo Walter
Ares, Alicia Esther
author2_role author
author
author
dc.subject.none.fl_str_mv Ingeniería de los Materiales
ASTM F75
biomaterials
corrosion
pH
temperature
topic Ingeniería de los Materiales
ASTM F75
biomaterials
corrosion
pH
temperature
dc.description.none.fl_txt_mv 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 ofASTMF75. 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.
description 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 ofASTMF75. 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.
publishDate 2017
dc.date.none.fl_str_mv 2017-09
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://digital.cic.gba.gob.ar/handle/11746/8156
url https://digital.cic.gba.gob.ar/handle/11746/8156
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1002/maco.201609394
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Wiley
publisher.none.fl_str_mv Wiley
dc.source.none.fl_str_mv reponame:CIC Digital (CICBA)
instname:Comisión de Investigaciones Científicas de la Provincia de Buenos Aires
instacron:CICBA
reponame_str CIC Digital (CICBA)
collection CIC Digital (CICBA)
instname_str Comisión de Investigaciones Científicas de la Provincia de Buenos Aires
instacron_str CICBA
institution CICBA
repository.name.fl_str_mv CIC Digital (CICBA) - Comisión de Investigaciones Científicas de la Provincia de Buenos Aires
repository.mail.fl_str_mv marisa.degiusti@sedici.unlp.edu.ar
_version_ 1842340432811393024
score 12.623145