Brass dezincification in a tap water bacterial suspension

Autores
Valcarce, María Beatriz; Rosso de Sanchez, Maria Susana; Vazquez, Marcela Vivian
Año de publicación
2006
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The dezincification of Al-brass under the influence of Pseudomona fluorescens in potable water is investigated. The experiments were carried out using artificial tap water, pH 7.6. For comparison, a bacterial suspension, was also used. Potentiodynamic reduction curves, polarization curves, polarization resistance and impedance spectroscopy as well as reflectance spectroscopy were used to characterise the surface films grown at open circuit potential. The dezincification associated to the presence of bacteria was revealed by changes in the reduction curves, and also by changes in the reflectance spectra. No significant differences were observed between the fitting parameters of the impedance spectra. The Tafel slopes were found to increase in the bacterial suspension. The corrosion currents are higher than in the inoculated electrolyte, particularly in the case of brass. This increment is attributed to the higher Tafel slope and is taken as an indication of the dezincification phenomenon. © 2005 Elsevier Ltd. All rights reserved.
Fil: Valcarce, María Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
Fil: Rosso de Sanchez, Maria Susana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
Fil: Vazquez, Marcela Vivian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
Materia
Copper Alloy
Corrosion
Dealloying
Electrochemistry
Optical Reflectivity
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:11336/70781
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/70781
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Brass dezincification in a tap water bacterial suspensionValcarce, María BeatrizRosso de Sanchez, Maria SusanaVazquez, Marcela VivianCopper AlloyCorrosionDealloyingElectrochemistryOptical Reflectivityhttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1The dezincification of Al-brass under the influence of Pseudomona fluorescens in potable water is investigated. The experiments were carried out using artificial tap water, pH 7.6. For comparison, a bacterial suspension, was also used. Potentiodynamic reduction curves, polarization curves, polarization resistance and impedance spectroscopy as well as reflectance spectroscopy were used to characterise the surface films grown at open circuit potential. The dezincification associated to the presence of bacteria was revealed by changes in the reduction curves, and also by changes in the reflectance spectra. No significant differences were observed between the fitting parameters of the impedance spectra. The Tafel slopes were found to increase in the bacterial suspension. The corrosion currents are higher than in the inoculated electrolyte, particularly in the case of brass. This increment is attributed to the higher Tafel slope and is taken as an indication of the dezincification phenomenon. © 2005 Elsevier Ltd. All rights reserved.Fil: Valcarce, María Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; ArgentinaFil: Rosso de Sanchez, Maria Susana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; ArgentinaFil: Vazquez, Marcela Vivian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; ArgentinaPergamon-Elsevier Science Ltd2006-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/70781Valcarce, María Beatriz; Rosso de Sanchez, Maria Susana; Vazquez, Marcela Vivian; Brass dezincification in a tap water bacterial suspension; Pergamon-Elsevier Science Ltd; Electrochimica Acta; 51; 18; 5-2006; 3736-37420013-4686CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0013468605012570info:eu-repo/semantics/altIdentifier/doi/10.1016/j.electacta.2005.10.034info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:30:09Zoai:ri.conicet.gov.ar:11336/70781instacron: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 10:30:09.649CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Brass dezincification in a tap water bacterial suspension
title Brass dezincification in a tap water bacterial suspension
spellingShingle Brass dezincification in a tap water bacterial suspension
Valcarce, María Beatriz
Copper Alloy
Corrosion
Dealloying
Electrochemistry
Optical Reflectivity
title_short Brass dezincification in a tap water bacterial suspension
title_full Brass dezincification in a tap water bacterial suspension
title_fullStr Brass dezincification in a tap water bacterial suspension
title_full_unstemmed Brass dezincification in a tap water bacterial suspension
title_sort Brass dezincification in a tap water bacterial suspension
dc.creator.none.fl_str_mv Valcarce, María Beatriz
Rosso de Sanchez, Maria Susana
Vazquez, Marcela Vivian
author Valcarce, María Beatriz
author_facet Valcarce, María Beatriz
Rosso de Sanchez, Maria Susana
Vazquez, Marcela Vivian
author_role author
author2 Rosso de Sanchez, Maria Susana
Vazquez, Marcela Vivian
author2_role author
author
dc.subject.none.fl_str_mv Copper Alloy
Corrosion
Dealloying
Electrochemistry
Optical Reflectivity
topic Copper Alloy
Corrosion
Dealloying
Electrochemistry
Optical Reflectivity
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The dezincification of Al-brass under the influence of Pseudomona fluorescens in potable water is investigated. The experiments were carried out using artificial tap water, pH 7.6. For comparison, a bacterial suspension, was also used. Potentiodynamic reduction curves, polarization curves, polarization resistance and impedance spectroscopy as well as reflectance spectroscopy were used to characterise the surface films grown at open circuit potential. The dezincification associated to the presence of bacteria was revealed by changes in the reduction curves, and also by changes in the reflectance spectra. No significant differences were observed between the fitting parameters of the impedance spectra. The Tafel slopes were found to increase in the bacterial suspension. The corrosion currents are higher than in the inoculated electrolyte, particularly in the case of brass. This increment is attributed to the higher Tafel slope and is taken as an indication of the dezincification phenomenon. © 2005 Elsevier Ltd. All rights reserved.
Fil: Valcarce, María Beatriz. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
Fil: Rosso de Sanchez, Maria Susana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
Fil: Vazquez, Marcela Vivian. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones en Ciencia y Tecnología de Materiales. Universidad Nacional de Mar del Plata. Facultad de Ingeniería. Instituto de Investigaciones en Ciencia y Tecnología de Materiales; Argentina
description The dezincification of Al-brass under the influence of Pseudomona fluorescens in potable water is investigated. The experiments were carried out using artificial tap water, pH 7.6. For comparison, a bacterial suspension, was also used. Potentiodynamic reduction curves, polarization curves, polarization resistance and impedance spectroscopy as well as reflectance spectroscopy were used to characterise the surface films grown at open circuit potential. The dezincification associated to the presence of bacteria was revealed by changes in the reduction curves, and also by changes in the reflectance spectra. No significant differences were observed between the fitting parameters of the impedance spectra. The Tafel slopes were found to increase in the bacterial suspension. The corrosion currents are higher than in the inoculated electrolyte, particularly in the case of brass. This increment is attributed to the higher Tafel slope and is taken as an indication of the dezincification phenomenon. © 2005 Elsevier Ltd. All rights reserved.
publishDate 2006
dc.date.none.fl_str_mv 2006-05
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/11336/70781
Valcarce, María Beatriz; Rosso de Sanchez, Maria Susana; Vazquez, Marcela Vivian; Brass dezincification in a tap water bacterial suspension; Pergamon-Elsevier Science Ltd; Electrochimica Acta; 51; 18; 5-2006; 3736-3742
0013-4686
CONICET Digital
CONICET
url http://hdl.handle.net/11336/70781
identifier_str_mv Valcarce, María Beatriz; Rosso de Sanchez, Maria Susana; Vazquez, Marcela Vivian; Brass dezincification in a tap water bacterial suspension; Pergamon-Elsevier Science Ltd; Electrochimica Acta; 51; 18; 5-2006; 3736-3742
0013-4686
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://www.sciencedirect.com/science/article/pii/S0013468605012570
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.electacta.2005.10.034
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
application/pdf
dc.publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
publisher.none.fl_str_mv Pergamon-Elsevier Science Ltd
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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