Effect of temperature on the crevice corrosion of nickel alloys containing chromium and molybdenum

Autores
Hornus, Edgar Cristian; Giordano, Claudia Marcela; Rodríguez, Martín Alejandro; Rebak, Raul Basilio
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Chloride-induced crevice corrosion of alloys 625, C-22, C-22HS and HYBRID-BC1 was studied at different temperatures. Crevice corrosion occurred tens of degrees below the reported critical crevice temperatures obtained through standard immersion tests. Concentrated calcium and sodium chloride solutions showed the same aggressiveness regarding crevice corrosion behavior of alloys C-22 and HYBRID-BC1. The crevice corrosion repassivation potential decreased as the temperature and chloride concentration increased. For alloys 625 and C-22, the repassivation potential reached a minimum limiting value which was coincident with the corrosion potential in the crevice-like solution. For alloys C-22HS and HYBRID-BC1, these conditions are expected to be reached above the tested temperatures. The high dependence of the repassivation potential on chloride concentration was attributed to the ohmic potential drop caused by passivating species at the alloy/solution interface. A temperature dependence of 4-9 mV/K was observed for the repassivation potential in dilute chloride solutions while it decreased to 2-3 mV/K in concentrated chloride solutions. In the context of the localized acidification model, the corrosion potential in the crevice-like solution did not depend on the temperature while the anodic polarization to maintain the crevice acidity and the ohmic potential drop decreased linearly as temperature increased.
Fil: Hornus, Edgar Cristian. Universidad Nacional de San Martín. Instituto Sabato; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Unidad de Actividad de Materiales (CAC); Argentina
Fil: Giordano, Claudia Marcela. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Unidad de Actividad de Materiales (CAC); Argentina. Universidad Nacional de San Martín. Instituto Sabato; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Rodríguez, Martín Alejandro. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Unidad de Actividad de Materiales (CAC); Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de San Martín. Instituto Sabato; Argentina
Fil: Rebak, Raul Basilio. GE Global Research; Estados Unidos
Materia
CREVICE CORROSION
TEMPERATURE
NICKEL ALLOYS
CHLORIDE
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:11336/99336
Acceder
id CONICETDig_97aec78068ec6e1ea9a6ab48096955d5
oai_identifier_str oai:ri.conicet.gov.ar:11336/99336
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Effect of temperature on the crevice corrosion of nickel alloys containing chromium and molybdenumHornus, Edgar CristianGiordano, Claudia MarcelaRodríguez, Martín AlejandroRebak, Raul BasilioCREVICE CORROSIONTEMPERATURENICKEL ALLOYSCHLORIDEhttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2Chloride-induced crevice corrosion of alloys 625, C-22, C-22HS and HYBRID-BC1 was studied at different temperatures. Crevice corrosion occurred tens of degrees below the reported critical crevice temperatures obtained through standard immersion tests. Concentrated calcium and sodium chloride solutions showed the same aggressiveness regarding crevice corrosion behavior of alloys C-22 and HYBRID-BC1. The crevice corrosion repassivation potential decreased as the temperature and chloride concentration increased. For alloys 625 and C-22, the repassivation potential reached a minimum limiting value which was coincident with the corrosion potential in the crevice-like solution. For alloys C-22HS and HYBRID-BC1, these conditions are expected to be reached above the tested temperatures. The high dependence of the repassivation potential on chloride concentration was attributed to the ohmic potential drop caused by passivating species at the alloy/solution interface. A temperature dependence of 4-9 mV/K was observed for the repassivation potential in dilute chloride solutions while it decreased to 2-3 mV/K in concentrated chloride solutions. In the context of the localized acidification model, the corrosion potential in the crevice-like solution did not depend on the temperature while the anodic polarization to maintain the crevice acidity and the ohmic potential drop decreased linearly as temperature increased.Fil: Hornus, Edgar Cristian. Universidad Nacional de San Martín. Instituto Sabato; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Unidad de Actividad de Materiales (CAC); ArgentinaFil: Giordano, Claudia Marcela. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Unidad de Actividad de Materiales (CAC); Argentina. Universidad Nacional de San Martín. Instituto Sabato; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Rodríguez, Martín Alejandro. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Unidad de Actividad de Materiales (CAC); Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de San Martín. Instituto Sabato; ArgentinaFil: Rebak, Raul Basilio. GE Global Research; Estados UnidosElectrochemical Society2015-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/99336Hornus, Edgar Cristian; Giordano, Claudia Marcela; Rodríguez, Martín Alejandro; Rebak, Raul Basilio; Effect of temperature on the crevice corrosion of nickel alloys containing chromium and molybdenum; Electrochemical Society; Journal of the Electrochemical Society; 162; 3; 3-2015; C105-C1130013-4651CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.1149/2.0431503jesinfo:eu-repo/semantics/altIdentifier/doi/10.1149/2.0431503jesinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:13:24Zoai:ri.conicet.gov.ar:11336/99336instacron: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 10:13:25.168CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Effect of temperature on the crevice corrosion of nickel alloys containing chromium and molybdenum
title Effect of temperature on the crevice corrosion of nickel alloys containing chromium and molybdenum
spellingShingle Effect of temperature on the crevice corrosion of nickel alloys containing chromium and molybdenum
Hornus, Edgar Cristian
CREVICE CORROSION
TEMPERATURE
NICKEL ALLOYS
CHLORIDE
title_short Effect of temperature on the crevice corrosion of nickel alloys containing chromium and molybdenum
title_full Effect of temperature on the crevice corrosion of nickel alloys containing chromium and molybdenum
title_fullStr Effect of temperature on the crevice corrosion of nickel alloys containing chromium and molybdenum
title_full_unstemmed Effect of temperature on the crevice corrosion of nickel alloys containing chromium and molybdenum
title_sort Effect of temperature on the crevice corrosion of nickel alloys containing chromium and molybdenum
dc.creator.none.fl_str_mv Hornus, Edgar Cristian
Giordano, Claudia Marcela
Rodríguez, Martín Alejandro
Rebak, Raul Basilio
author Hornus, Edgar Cristian
author_facet Hornus, Edgar Cristian
Giordano, Claudia Marcela
Rodríguez, Martín Alejandro
Rebak, Raul Basilio
author_role author
author2 Giordano, Claudia Marcela
Rodríguez, Martín Alejandro
Rebak, Raul Basilio
author2_role author
author
author
dc.subject.none.fl_str_mv CREVICE CORROSION
TEMPERATURE
NICKEL ALLOYS
CHLORIDE
topic CREVICE CORROSION
TEMPERATURE
NICKEL ALLOYS
CHLORIDE
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Chloride-induced crevice corrosion of alloys 625, C-22, C-22HS and HYBRID-BC1 was studied at different temperatures. Crevice corrosion occurred tens of degrees below the reported critical crevice temperatures obtained through standard immersion tests. Concentrated calcium and sodium chloride solutions showed the same aggressiveness regarding crevice corrosion behavior of alloys C-22 and HYBRID-BC1. The crevice corrosion repassivation potential decreased as the temperature and chloride concentration increased. For alloys 625 and C-22, the repassivation potential reached a minimum limiting value which was coincident with the corrosion potential in the crevice-like solution. For alloys C-22HS and HYBRID-BC1, these conditions are expected to be reached above the tested temperatures. The high dependence of the repassivation potential on chloride concentration was attributed to the ohmic potential drop caused by passivating species at the alloy/solution interface. A temperature dependence of 4-9 mV/K was observed for the repassivation potential in dilute chloride solutions while it decreased to 2-3 mV/K in concentrated chloride solutions. In the context of the localized acidification model, the corrosion potential in the crevice-like solution did not depend on the temperature while the anodic polarization to maintain the crevice acidity and the ohmic potential drop decreased linearly as temperature increased.
Fil: Hornus, Edgar Cristian. Universidad Nacional de San Martín. Instituto Sabato; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Unidad de Actividad de Materiales (CAC); Argentina
Fil: Giordano, Claudia Marcela. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Unidad de Actividad de Materiales (CAC); Argentina. Universidad Nacional de San Martín. Instituto Sabato; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Rodríguez, Martín Alejandro. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Unidad de Actividad de Materiales (CAC); Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional de San Martín. Instituto Sabato; Argentina
Fil: Rebak, Raul Basilio. GE Global Research; Estados Unidos
description Chloride-induced crevice corrosion of alloys 625, C-22, C-22HS and HYBRID-BC1 was studied at different temperatures. Crevice corrosion occurred tens of degrees below the reported critical crevice temperatures obtained through standard immersion tests. Concentrated calcium and sodium chloride solutions showed the same aggressiveness regarding crevice corrosion behavior of alloys C-22 and HYBRID-BC1. The crevice corrosion repassivation potential decreased as the temperature and chloride concentration increased. For alloys 625 and C-22, the repassivation potential reached a minimum limiting value which was coincident with the corrosion potential in the crevice-like solution. For alloys C-22HS and HYBRID-BC1, these conditions are expected to be reached above the tested temperatures. The high dependence of the repassivation potential on chloride concentration was attributed to the ohmic potential drop caused by passivating species at the alloy/solution interface. A temperature dependence of 4-9 mV/K was observed for the repassivation potential in dilute chloride solutions while it decreased to 2-3 mV/K in concentrated chloride solutions. In the context of the localized acidification model, the corrosion potential in the crevice-like solution did not depend on the temperature while the anodic polarization to maintain the crevice acidity and the ohmic potential drop decreased linearly as temperature increased.
publishDate 2015
dc.date.none.fl_str_mv 2015-03
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/11336/99336
Hornus, Edgar Cristian; Giordano, Claudia Marcela; Rodríguez, Martín Alejandro; Rebak, Raul Basilio; Effect of temperature on the crevice corrosion of nickel alloys containing chromium and molybdenum; Electrochemical Society; Journal of the Electrochemical Society; 162; 3; 3-2015; C105-C113
0013-4651
CONICET Digital
CONICET
url http://hdl.handle.net/11336/99336
identifier_str_mv Hornus, Edgar Cristian; Giordano, Claudia Marcela; Rodríguez, Martín Alejandro; Rebak, Raul Basilio; Effect of temperature on the crevice corrosion of nickel alloys containing chromium and molybdenum; Electrochemical Society; Journal of the Electrochemical Society; 162; 3; 3-2015; C105-C113
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/10.1149/2.0431503jes
info:eu-repo/semantics/altIdentifier/doi/10.1149/2.0431503jes
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
_version_ 1844614050943598592
score 13.070432

Publicaciones similares