Study of dendritic growth of zinc crystals on the edges of steel sheet

In this paper, the formation of zinc dendrites at the strip edge of an industrial electrogalvanizing line was studied. For that purpose, a rotating washer electrode was designed to reproduce the hydrodynamic conditions and the current density distribution found in the industrial process. Polarizatio...

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Autores: Bengoa, Leandro Nicolás, Bruno, Sonia, Lazzarino, H. A., Seré, Pablo Ricardo, Egli, Walter Alfredo
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2014
País:Argentina
Institución:Universidad Nacional de La Plata
Repositorio:SEDICI (UNLP)
Idioma:inglés
OAI Identifier:oai:sedici.unlp.edu.ar:10915/141521
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/141521
Access Level:acceso abierto
Palabra clave:Ingeniería
Ciencias Exactas
Electroplating
Dendritic growth
Zinc
Galvanization
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spelling Study of dendritic growth of zinc crystals on the edges of steel sheetBengoa, Leandro NicolásBruno, SoniaLazzarino, H. A.Seré, Pablo RicardoEgli, Walter AlfredoIngenieríaCiencias ExactasElectroplatingDendritic growthZincGalvanizationIn this paper, the formation of zinc dendrites at the strip edge of an industrial electrogalvanizing line was studied. For that purpose, a rotating washer electrode was designed to reproduce the hydrodynamic conditions and the current density distribution found in the industrial process. Polarization curves were recorded at different rotation speeds in order to investigate the electrokinetic behavior of the cathodic process. The induction time for dendritic growth was estimated for different overpotential values and the existence of a minimum overpotential below which dendrites do not grow was confirmed. Dendrite precursors on the edge of the washers were well characterized and its birth and precise location were studied. The general model of disperse and dendritic metal electrodeposit formation derived by Popov et al. was used to explain the effect of electrolyte zinc concentration, rotation speed of the cathode, electrolyte temperature and edge roughness on the size and morphology of dendrites. The results showed that this theory provides an accurate description of the phenomenon even for non-stationary electrodes, which have not been extensively studied so far. The experimental setup proved to be a powerful means to study the formation of dendritic growth of zinc crystals on the edges of steel strip and is well suited to characterize other metals that produce this type of defect.Centro de Investigación y Desarrollo en Tecnología de Pinturas2014-08-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf1261-1269http://sedici.unlp.edu.ar/handle/10915/141521enginfo:eu-repo/semantics/altIdentifier/issn/0021-891xinfo:eu-repo/semantics/altIdentifier/issn/1572-8838info:eu-repo/semantics/altIdentifier/doi/10.1007/s10800-014-0722-yinfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2024-05-08T13:10:35Zoai:sedici.unlp.edu.ar:10915/141521Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292024-05-08 13:10:35.865SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Study of dendritic growth of zinc crystals on the edges of steel sheet
title Study of dendritic growth of zinc crystals on the edges of steel sheet
spellingShingle Study of dendritic growth of zinc crystals on the edges of steel sheet
Bengoa, Leandro Nicolás
Ingeniería
Ciencias Exactas
Electroplating
Dendritic growth
Zinc
Galvanization
title_short Study of dendritic growth of zinc crystals on the edges of steel sheet
title_full Study of dendritic growth of zinc crystals on the edges of steel sheet
title_fullStr Study of dendritic growth of zinc crystals on the edges of steel sheet
title_full_unstemmed Study of dendritic growth of zinc crystals on the edges of steel sheet
title_sort Study of dendritic growth of zinc crystals on the edges of steel sheet
dc.creator.none.fl_str_mv Bengoa, Leandro Nicolás
Bruno, Sonia
Lazzarino, H. A.
Seré, Pablo Ricardo
Egli, Walter Alfredo
author Bengoa, Leandro Nicolás
author_facet Bengoa, Leandro Nicolás
Bruno, Sonia
Lazzarino, H. A.
Seré, Pablo Ricardo
Egli, Walter Alfredo
author_role author
author2 Bruno, Sonia
Lazzarino, H. A.
Seré, Pablo Ricardo
Egli, Walter Alfredo
author2_role author
author
author
author
dc.subject.none.fl_str_mv Ingeniería
Ciencias Exactas
Electroplating
Dendritic growth
Zinc
Galvanization
topic Ingeniería
Ciencias Exactas
Electroplating
Dendritic growth
Zinc
Galvanization
description In this paper, the formation of zinc dendrites at the strip edge of an industrial electrogalvanizing line was studied. For that purpose, a rotating washer electrode was designed to reproduce the hydrodynamic conditions and the current density distribution found in the industrial process. Polarization curves were recorded at different rotation speeds in order to investigate the electrokinetic behavior of the cathodic process. The induction time for dendritic growth was estimated for different overpotential values and the existence of a minimum overpotential below which dendrites do not grow was confirmed. Dendrite precursors on the edge of the washers were well characterized and its birth and precise location were studied. The general model of disperse and dendritic metal electrodeposit formation derived by Popov et al. was used to explain the effect of electrolyte zinc concentration, rotation speed of the cathode, electrolyte temperature and edge roughness on the size and morphology of dendrites. The results showed that this theory provides an accurate description of the phenomenon even for non-stationary electrodes, which have not been extensively studied so far. The experimental setup proved to be a powerful means to study the formation of dendritic growth of zinc crystals on the edges of steel strip and is well suited to characterize other metals that produce this type of defect.
publishDate 2014
dc.date.none.fl_str_mv 2014-08-12
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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://sedici.unlp.edu.ar/handle/10915/141521
url http://sedici.unlp.edu.ar/handle/10915/141521
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0021-891x
info:eu-repo/semantics/altIdentifier/issn/1572-8838
info:eu-repo/semantics/altIdentifier/doi/10.1007/s10800-014-0722-y
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.format.none.fl_str_mv application/pdf
1261-1269
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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