Effect of crevice corrosion inhibitors on the passivity of alloy 22

Autores
Ortíz, Mauricio Rincón; Rodríguez, Martín Alejandro; Carranza, Ricardo Mario
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Electrochemical impedance spectroscopy (EIS) tests were performed on alloy 22 in chloride and chloride plus inhibitor naturally aerated solutions, at 90°C. A Rω-(RF//CPE) equivalent circuit model was used for fitting to the EIS data. Rω and RF were the ohmic and film resistances, respectively, and CPE accounted for the non-ideal capacitance. The fitting errors of the circuit parameters decreased as pH increased. The passive film properties improved as pH increased from pH 0 to pH 4. At higher pH values, the passive film properties depended mainly on the identity of the salt added. Oxalic, picric and citric acids additions were detrimental for the passive film developed on alloy 22. Carbonate and bicarbonate led to less protective passive films only when added to 1 M NaCl solutions. Fluoride was a detrimental addition at pH 6, but not at pH 9. Acetic acid, carbonic acid, silicate, tungstate, and molybdate additions did not modify significantly the protective properties of the alloy 22 passive film. Nitrate, sulfate and chromate additions led to thick and protective passive films. The efficiency of the tested species as crevice corrosion inhibitors was not related to their effects on alloy 22 passivity.
Fil: Ortíz, Mauricio Rincón. The University Of Akron (uoa);
Fil: Rodríguez, Martín Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica; Argentina. Universidad Nacional de San Martín. Instituto Sabato; Argentina
Fil: Carranza, Ricardo Mario. Comisión Nacional de Energía Atómica; Argentina. Universidad Nacional de San Martín. Instituto Sabato; Argentina
Materia
PASSIVE FILM
BICARBONATE
TUNGSTATE
MOLYBDATE
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:11336/198782
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Effect of crevice corrosion inhibitors on the passivity of alloy 22Ortíz, Mauricio RincónRodríguez, Martín AlejandroCarranza, Ricardo MarioPASSIVE FILMBICARBONATETUNGSTATEMOLYBDATEhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1https://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2Electrochemical impedance spectroscopy (EIS) tests were performed on alloy 22 in chloride and chloride plus inhibitor naturally aerated solutions, at 90°C. A Rω-(RF//CPE) equivalent circuit model was used for fitting to the EIS data. Rω and RF were the ohmic and film resistances, respectively, and CPE accounted for the non-ideal capacitance. The fitting errors of the circuit parameters decreased as pH increased. The passive film properties improved as pH increased from pH 0 to pH 4. At higher pH values, the passive film properties depended mainly on the identity of the salt added. Oxalic, picric and citric acids additions were detrimental for the passive film developed on alloy 22. Carbonate and bicarbonate led to less protective passive films only when added to 1 M NaCl solutions. Fluoride was a detrimental addition at pH 6, but not at pH 9. Acetic acid, carbonic acid, silicate, tungstate, and molybdate additions did not modify significantly the protective properties of the alloy 22 passive film. Nitrate, sulfate and chromate additions led to thick and protective passive films. The efficiency of the tested species as crevice corrosion inhibitors was not related to their effects on alloy 22 passivity.Fil: Ortíz, Mauricio Rincón. The University Of Akron (uoa);Fil: Rodríguez, Martín Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica; Argentina. Universidad Nacional de San Martín. Instituto Sabato; ArgentinaFil: Carranza, Ricardo Mario. Comisión Nacional de Energía Atómica; Argentina. Universidad Nacional de San Martín. Instituto Sabato; ArgentinaElectrochemical Society2012-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/198782Ortíz, Mauricio Rincón; Rodríguez, Martín Alejandro; Carranza, Ricardo Mario; Effect of crevice corrosion inhibitors on the passivity of alloy 22; Electrochemical Society; Journal of the Electrochemical Society; 159; 11; 11-2012; 469-4750013-4651CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.1149/2.040211jes/metainfo:eu-repo/semantics/altIdentifier/doi/10.1149/2.040211jesinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:01:11Zoai:ri.conicet.gov.ar:11336/198782instacron: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:34982025-09-29 10:01:11.534CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Effect of crevice corrosion inhibitors on the passivity of alloy 22
title Effect of crevice corrosion inhibitors on the passivity of alloy 22
spellingShingle Effect of crevice corrosion inhibitors on the passivity of alloy 22
Ortíz, Mauricio Rincón
PASSIVE FILM
BICARBONATE
TUNGSTATE
MOLYBDATE
title_short Effect of crevice corrosion inhibitors on the passivity of alloy 22
title_full Effect of crevice corrosion inhibitors on the passivity of alloy 22
title_fullStr Effect of crevice corrosion inhibitors on the passivity of alloy 22
title_full_unstemmed Effect of crevice corrosion inhibitors on the passivity of alloy 22
title_sort Effect of crevice corrosion inhibitors on the passivity of alloy 22
dc.creator.none.fl_str_mv Ortíz, Mauricio Rincón
Rodríguez, Martín Alejandro
Carranza, Ricardo Mario
author Ortíz, Mauricio Rincón
author_facet Ortíz, Mauricio Rincón
Rodríguez, Martín Alejandro
Carranza, Ricardo Mario
author_role author
author2 Rodríguez, Martín Alejandro
Carranza, Ricardo Mario
author2_role author
author
dc.subject.none.fl_str_mv PASSIVE FILM
BICARBONATE
TUNGSTATE
MOLYBDATE
topic PASSIVE FILM
BICARBONATE
TUNGSTATE
MOLYBDATE
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Electrochemical impedance spectroscopy (EIS) tests were performed on alloy 22 in chloride and chloride plus inhibitor naturally aerated solutions, at 90°C. A Rω-(RF//CPE) equivalent circuit model was used for fitting to the EIS data. Rω and RF were the ohmic and film resistances, respectively, and CPE accounted for the non-ideal capacitance. The fitting errors of the circuit parameters decreased as pH increased. The passive film properties improved as pH increased from pH 0 to pH 4. At higher pH values, the passive film properties depended mainly on the identity of the salt added. Oxalic, picric and citric acids additions were detrimental for the passive film developed on alloy 22. Carbonate and bicarbonate led to less protective passive films only when added to 1 M NaCl solutions. Fluoride was a detrimental addition at pH 6, but not at pH 9. Acetic acid, carbonic acid, silicate, tungstate, and molybdate additions did not modify significantly the protective properties of the alloy 22 passive film. Nitrate, sulfate and chromate additions led to thick and protective passive films. The efficiency of the tested species as crevice corrosion inhibitors was not related to their effects on alloy 22 passivity.
Fil: Ortíz, Mauricio Rincón. The University Of Akron (uoa);
Fil: Rodríguez, Martín Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comisión Nacional de Energía Atómica; Argentina. Universidad Nacional de San Martín. Instituto Sabato; Argentina
Fil: Carranza, Ricardo Mario. Comisión Nacional de Energía Atómica; Argentina. Universidad Nacional de San Martín. Instituto Sabato; Argentina
description Electrochemical impedance spectroscopy (EIS) tests were performed on alloy 22 in chloride and chloride plus inhibitor naturally aerated solutions, at 90°C. A Rω-(RF//CPE) equivalent circuit model was used for fitting to the EIS data. Rω and RF were the ohmic and film resistances, respectively, and CPE accounted for the non-ideal capacitance. The fitting errors of the circuit parameters decreased as pH increased. The passive film properties improved as pH increased from pH 0 to pH 4. At higher pH values, the passive film properties depended mainly on the identity of the salt added. Oxalic, picric and citric acids additions were detrimental for the passive film developed on alloy 22. Carbonate and bicarbonate led to less protective passive films only when added to 1 M NaCl solutions. Fluoride was a detrimental addition at pH 6, but not at pH 9. Acetic acid, carbonic acid, silicate, tungstate, and molybdate additions did not modify significantly the protective properties of the alloy 22 passive film. Nitrate, sulfate and chromate additions led to thick and protective passive films. The efficiency of the tested species as crevice corrosion inhibitors was not related to their effects on alloy 22 passivity.
publishDate 2012
dc.date.none.fl_str_mv 2012-11
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/11336/198782
Ortíz, Mauricio Rincón; Rodríguez, Martín Alejandro; Carranza, Ricardo Mario; Effect of crevice corrosion inhibitors on the passivity of alloy 22; Electrochemical Society; Journal of the Electrochemical Society; 159; 11; 11-2012; 469-475
0013-4651
CONICET Digital
CONICET
url http://hdl.handle.net/11336/198782
identifier_str_mv Ortíz, Mauricio Rincón; Rodríguez, Martín Alejandro; Carranza, Ricardo Mario; Effect of crevice corrosion inhibitors on the passivity of alloy 22; Electrochemical Society; Journal of the Electrochemical Society; 159; 11; 11-2012; 469-475
0013-4651
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.1149/2.040211jes/meta
info:eu-repo/semantics/altIdentifier/doi/10.1149/2.040211jes
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 Electrochemical Society
publisher.none.fl_str_mv Electrochemical Society
dc.source.none.fl_str_mv 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 13.070432

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