Electrochemical tests in stainless steel surgical implants

Autores
Kociubczyk, Alex Iván; Mendez, Claudia; Gregorutti, Ricardo; Ares, Alicia Esther
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In the present work the corrosion resistance of stainless steels was evaluated following the specifications of ASTM F-745 standards. The specimens were obtained by two methods, the conventional process of investment casting and countergravity low pressure casting. Cyclic polarization tests were performed according to ASTM F 2129, using a conventional three-electrode cell, with Pt as a counter electrode and saturated calomel as a reference electrode. The experiments were performed at (37 ± 1) °C and, before starting the test, the electrolyte was purged with N2 gas for 15 minutes. As electrolyte, a solution of 0.9% NaCl was used (pH≈7), the open circuit potential (OCP) was monitored for 1 hour and then the potentiodynamic scanning started in the anodic direction, at a speed of 0.167 mV/s, from a potential of 100 mV below the OCP. The sweep was reversed after passing the threshold of current density at a value hundred times greater than the current density of pitting. Measurements of electrochemical impedance spectroscopy were performed after one hour of exposure of the specimens to OCPs performed in a frequency range from 100 kHz to 1 mHz and potential amplitude of ± 10 mV. The microstructure of the samples was analyzed before and after testing using optical microscopy. The results indicated that the samples in general exhibit crack corrosion, and in some cases the occurrence of pitting corrosion was observed. Also, the capacity values were within the range corresponding to the electric double layer and the charge transfer resistance increased on the specimens obtained by conventional casting in ceramic mold.
Fil: Kociubczyk, Alex Iván. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnológico Nordeste. Instituto de Materiales de Misiones; Argentina
Fil: Mendez, Claudia. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnológico Nordeste. Instituto de Materiales de Misiones; Argentina
Fil: Gregorutti, Ricardo. Provincia de Buenos Aires. Gobernacion. Comision de Investigaciones Cientificas. Laboratorio de Entrenamiento Multidisciplinario para la Investigación Tecnológica; Argentina
Fil: Ares, Alicia Esther. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnológico Nordeste. Instituto de Materiales de Misiones; Argentina
Fuente
International Congress of Science and Technology of Metallurgy and Materials, SAM – CONAMET 2014
Materia
Biomaterials
Corrosion
Stainless steel
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/9700
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/9700
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Electrochemical tests in stainless steel surgical implantsKociubczyk, Alex IvánMendez, ClaudiaGregorutti, RicardoAres, Alicia EstherBiomaterialsCorrosionStainless steelhttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2In the present work the corrosion resistance of stainless steels was evaluated following the specifications of ASTM F-745 standards. The specimens were obtained by two methods, the conventional process of investment casting and countergravity low pressure casting. Cyclic polarization tests were performed according to ASTM F 2129, using a conventional three-electrode cell, with Pt as a counter electrode and saturated calomel as a reference electrode. The experiments were performed at (37 ± 1) °C and, before starting the test, the electrolyte was purged with N2 gas for 15 minutes. As electrolyte, a solution of 0.9% NaCl was used (pH≈7), the open circuit potential (OCP) was monitored for 1 hour and then the potentiodynamic scanning started in the anodic direction, at a speed of 0.167 mV/s, from a potential of 100 mV below the OCP. The sweep was reversed after passing the threshold of current density at a value hundred times greater than the current density of pitting. Measurements of electrochemical impedance spectroscopy were performed after one hour of exposure of the specimens to OCPs performed in a frequency range from 100 kHz to 1 mHz and potential amplitude of ± 10 mV. The microstructure of the samples was analyzed before and after testing using optical microscopy. The results indicated that the samples in general exhibit crack corrosion, and in some cases the occurrence of pitting corrosion was observed. Also, the capacity values were within the range corresponding to the electric double layer and the charge transfer resistance increased on the specimens obtained by conventional casting in ceramic mold.Fil: Kociubczyk, Alex Iván. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnológico Nordeste. Instituto de Materiales de Misiones; ArgentinaFil: Mendez, Claudia. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnológico Nordeste. Instituto de Materiales de Misiones; ArgentinaFil: Gregorutti, Ricardo. Provincia de Buenos Aires. Gobernacion. Comision de Investigaciones Cientificas. Laboratorio de Entrenamiento Multidisciplinario para la Investigación Tecnológica; ArgentinaFil: Ares, Alicia Esther. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnológico Nordeste. Instituto de Materiales de Misiones; ArgentinaElsevier2015-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/9700Kociubczyk, Alex Iván; Mendez, Claudia; Gregorutti, Ricardo; Ares, Alicia Esther; Electrochemical tests in stainless steel surgical implants; Elsevier; Procedia Materials Science; 9; 4-2015; 335-3402211-8128International Congress of Science and Technology of Metallurgy and Materials, SAM – CONAMET 2014reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicasenginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S2211812815001868info:eu-repo/semantics/altIdentifier/doi/10.1016/j.mspro.2015.05.002info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/2025-09-03T09:46:45Zoai:ri.conicet.gov.ar:11336/9700instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 09:46:45.948CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Electrochemical tests in stainless steel surgical implants
title Electrochemical tests in stainless steel surgical implants
spellingShingle Electrochemical tests in stainless steel surgical implants
Kociubczyk, Alex Iván
Biomaterials
Corrosion
Stainless steel
title_short Electrochemical tests in stainless steel surgical implants
title_full Electrochemical tests in stainless steel surgical implants
title_fullStr Electrochemical tests in stainless steel surgical implants
title_full_unstemmed Electrochemical tests in stainless steel surgical implants
title_sort Electrochemical tests in stainless steel surgical implants
dc.creator.none.fl_str_mv Kociubczyk, Alex Iván
Mendez, Claudia
Gregorutti, Ricardo
Ares, Alicia Esther
author Kociubczyk, Alex Iván
author_facet Kociubczyk, Alex Iván
Mendez, Claudia
Gregorutti, Ricardo
Ares, Alicia Esther
author_role author
author2 Mendez, Claudia
Gregorutti, Ricardo
Ares, Alicia Esther
author2_role author
author
author
dc.subject.none.fl_str_mv Biomaterials
Corrosion
Stainless steel
topic Biomaterials
Corrosion
Stainless steel
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv In the present work the corrosion resistance of stainless steels was evaluated following the specifications of ASTM F-745 standards. The specimens were obtained by two methods, the conventional process of investment casting and countergravity low pressure casting. Cyclic polarization tests were performed according to ASTM F 2129, using a conventional three-electrode cell, with Pt as a counter electrode and saturated calomel as a reference electrode. The experiments were performed at (37 ± 1) °C and, before starting the test, the electrolyte was purged with N2 gas for 15 minutes. As electrolyte, a solution of 0.9% NaCl was used (pH≈7), the open circuit potential (OCP) was monitored for 1 hour and then the potentiodynamic scanning started in the anodic direction, at a speed of 0.167 mV/s, from a potential of 100 mV below the OCP. The sweep was reversed after passing the threshold of current density at a value hundred times greater than the current density of pitting. Measurements of electrochemical impedance spectroscopy were performed after one hour of exposure of the specimens to OCPs performed in a frequency range from 100 kHz to 1 mHz and potential amplitude of ± 10 mV. The microstructure of the samples was analyzed before and after testing using optical microscopy. The results indicated that the samples in general exhibit crack corrosion, and in some cases the occurrence of pitting corrosion was observed. Also, the capacity values were within the range corresponding to the electric double layer and the charge transfer resistance increased on the specimens obtained by conventional casting in ceramic mold.
Fil: Kociubczyk, Alex Iván. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnológico Nordeste. Instituto de Materiales de Misiones; Argentina
Fil: Mendez, Claudia. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnológico Nordeste. Instituto de Materiales de Misiones; Argentina
Fil: Gregorutti, Ricardo. Provincia de Buenos Aires. Gobernacion. Comision de Investigaciones Cientificas. Laboratorio de Entrenamiento Multidisciplinario para la Investigación Tecnológica; Argentina
Fil: Ares, Alicia Esther. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnológico Nordeste. Instituto de Materiales de Misiones; Argentina
description In the present work the corrosion resistance of stainless steels was evaluated following the specifications of ASTM F-745 standards. The specimens were obtained by two methods, the conventional process of investment casting and countergravity low pressure casting. Cyclic polarization tests were performed according to ASTM F 2129, using a conventional three-electrode cell, with Pt as a counter electrode and saturated calomel as a reference electrode. The experiments were performed at (37 ± 1) °C and, before starting the test, the electrolyte was purged with N2 gas for 15 minutes. As electrolyte, a solution of 0.9% NaCl was used (pH≈7), the open circuit potential (OCP) was monitored for 1 hour and then the potentiodynamic scanning started in the anodic direction, at a speed of 0.167 mV/s, from a potential of 100 mV below the OCP. The sweep was reversed after passing the threshold of current density at a value hundred times greater than the current density of pitting. Measurements of electrochemical impedance spectroscopy were performed after one hour of exposure of the specimens to OCPs performed in a frequency range from 100 kHz to 1 mHz and potential amplitude of ± 10 mV. The microstructure of the samples was analyzed before and after testing using optical microscopy. The results indicated that the samples in general exhibit crack corrosion, and in some cases the occurrence of pitting corrosion was observed. Also, the capacity values were within the range corresponding to the electric double layer and the charge transfer resistance increased on the specimens obtained by conventional casting in ceramic mold.
publishDate 2015
dc.date.none.fl_str_mv 2015-04
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 http://hdl.handle.net/11336/9700
Kociubczyk, Alex Iván; Mendez, Claudia; Gregorutti, Ricardo; Ares, Alicia Esther; Electrochemical tests in stainless steel surgical implants; Elsevier; Procedia Materials Science; 9; 4-2015; 335-340
2211-8128
url http://hdl.handle.net/11336/9700
identifier_str_mv Kociubczyk, Alex Iván; Mendez, Claudia; Gregorutti, Ricardo; Ares, Alicia Esther; Electrochemical tests in stainless steel surgical implants; Elsevier; Procedia Materials Science; 9; 4-2015; 335-340
2211-8128
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S2211812815001868
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.mspro.2015.05.002
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv International Congress of Science and Technology of Metallurgy and Materials, SAM – CONAMET 2014
reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.13397

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