Evaluation of paint systems on A36 steel through electrochemical techniques: Corrosion resistance of container tanks

In this research work, the corrosion resistance of plate steel used in the construction of cylindrical container tanks of seawater was evaluated. These container tanks are usually used for fighting fires on the coast of the Arequipa-Peru region, where the shortage of drinking water is significant. T...

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Autores: Canahua Loza, H., Huanca Zuñiga, P., Minga Adco, M., Vizcarra, Carolyne, Canahua Sosa, L., Escudero Rincón, María Lorenza
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2022
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/287502
Acceso en línea:http://hdl.handle.net/10261/287502
Access Level:acceso abierto
Palabra clave:Plate steel
Seawater storage tank
Epoxy coating
Electrochemical impedance spectroscopy
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spelling Evaluation of paint systems on A36 steel through electrochemical techniques: Corrosion resistance of container tanksCanahua Loza, H.Huanca Zuñiga, P.Minga Adco, M.Vizcarra, CarolyneCanahua Sosa, L.Escudero Rincón, María LorenzaPlate steelSeawater storage tankEpoxy coatingElectrochemical impedance spectroscopyIn this research work, the corrosion resistance of plate steel used in the construction of cylindrical container tanks of seawater was evaluated. These container tanks are usually used for fighting fires on the coast of the Arequipa-Peru region, where the shortage of drinking water is significant. The study was based on immersion tests of 2 × 2 cm square test plates in 3.5 wt.% NaCl solution. Five paint systems were studied, varying only in the primers: P1-860 (inorganic zinc silicate); P1-ZC (epoxy-zinchromate); P1-850 (organic rich in zinc); P1-600 (reinforced inorganic zinc) and P1-SP1000 (high solids epoxy-amine). All systems consisted of a primer coat, an epoxy middle coat and a polyurethane topcoat. To characterize the behaviour of each system, the electrochemical impedance spectroscopy (EIS) was mostly used. In addition, the scanning Kelvin probe (SKP) and scanning electrochemical microscopy (SECM) were used as local techniques. The first three paint systems (P1-860, P1-ZC and P1-850) showed an invariable value of impedance modulus up to 3360 h of immersion in NaCl. The last two paint systems (P1-600 and P1-SP1000) showed a decrease in impedance modulus by more than one order of magnitude. This research provides a clear contribution of results obtained by global electrochemical techniques such as EIS, establishing excellent tools for monitoring the performance of organic anticorrosive coatings.We thank Dr. María Escudero from CENIM-Spain for mentoring the project carried out, and to the UNSA-INVESTIGA IAI-009-2018 program for the funding granted.International Association of Physical Chemists ‎Universidad Nacional de San Agustín de ArequipaConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2023202320222023info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/287502reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttps://doi.org/10.5599/jese.1130Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2875022026-05-22T06:33:51Z
dc.title.none.fl_str_mv Evaluation of paint systems on A36 steel through electrochemical techniques: Corrosion resistance of container tanks
title Evaluation of paint systems on A36 steel through electrochemical techniques: Corrosion resistance of container tanks
spellingShingle Evaluation of paint systems on A36 steel through electrochemical techniques: Corrosion resistance of container tanks
Canahua Loza, H.
Plate steel
Seawater storage tank
Epoxy coating
Electrochemical impedance spectroscopy
title_short Evaluation of paint systems on A36 steel through electrochemical techniques: Corrosion resistance of container tanks
title_full Evaluation of paint systems on A36 steel through electrochemical techniques: Corrosion resistance of container tanks
title_fullStr Evaluation of paint systems on A36 steel through electrochemical techniques: Corrosion resistance of container tanks
title_full_unstemmed Evaluation of paint systems on A36 steel through electrochemical techniques: Corrosion resistance of container tanks
title_sort Evaluation of paint systems on A36 steel through electrochemical techniques: Corrosion resistance of container tanks
dc.creator.none.fl_str_mv Canahua Loza, H.
Huanca Zuñiga, P.
Minga Adco, M.
Vizcarra, Carolyne
Canahua Sosa, L.
Escudero Rincón, María Lorenza
author Canahua Loza, H.
author_facet Canahua Loza, H.
Huanca Zuñiga, P.
Minga Adco, M.
Vizcarra, Carolyne
Canahua Sosa, L.
Escudero Rincón, María Lorenza
author_role author
author2 Huanca Zuñiga, P.
Minga Adco, M.
Vizcarra, Carolyne
Canahua Sosa, L.
Escudero Rincón, María Lorenza
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Universidad Nacional de San Agustín de Arequipa
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Plate steel
Seawater storage tank
Epoxy coating
Electrochemical impedance spectroscopy
topic Plate steel
Seawater storage tank
Epoxy coating
Electrochemical impedance spectroscopy
description In this research work, the corrosion resistance of plate steel used in the construction of cylindrical container tanks of seawater was evaluated. These container tanks are usually used for fighting fires on the coast of the Arequipa-Peru region, where the shortage of drinking water is significant. The study was based on immersion tests of 2 × 2 cm square test plates in 3.5 wt.% NaCl solution. Five paint systems were studied, varying only in the primers: P1-860 (inorganic zinc silicate); P1-ZC (epoxy-zinchromate); P1-850 (organic rich in zinc); P1-600 (reinforced inorganic zinc) and P1-SP1000 (high solids epoxy-amine). All systems consisted of a primer coat, an epoxy middle coat and a polyurethane topcoat. To characterize the behaviour of each system, the electrochemical impedance spectroscopy (EIS) was mostly used. In addition, the scanning Kelvin probe (SKP) and scanning electrochemical microscopy (SECM) were used as local techniques. The first three paint systems (P1-860, P1-ZC and P1-850) showed an invariable value of impedance modulus up to 3360 h of immersion in NaCl. The last two paint systems (P1-600 and P1-SP1000) showed a decrease in impedance modulus by more than one order of magnitude. This research provides a clear contribution of results obtained by global electrochemical techniques such as EIS, establishing excellent tools for monitoring the performance of organic anticorrosive coatings.
publishDate 2022
dc.date.none.fl_str_mv 2022
2023
2023
2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/287502
url http://hdl.handle.net/10261/287502
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://doi.org/10.5599/jese.1130
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv International Association of Physical Chemists ‎
publisher.none.fl_str_mv International Association of Physical Chemists ‎
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,811543

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