Atmospheric corrosion of galvanized steel and precipitation runoff from zinc in a marine environment

Detalhes bibliográficos
Autor(a) principal: Vera,Rosa
Data de Publicação: 2013
Outros Autores: Guerrero,Fabián, Delgado,Diana, Araya,Raquel
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Journal of the Brazilian Chemical Society (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532013000300013
Resumo: This study focuses on the behavior of galvanized steel in a corrosive marine environment and on the runoff process for the same material occurring in Valparaiso, Chile. The corrosion potential and corrosion rate evaluated via mass loss were used to determine the corrosion damage to the galvanized steel. The compositions of the corrosion products were determined using X-ray diffractometry (XRD), and their morphology through scanning electron microscopy (SEM). The runoff solutions collected after rainfall were analyzed to determine the pH value, and Cl-, SO4(2 -) and Zn2+ ion concentrations. The results after 15 months show that the corrosion potential of the galvanized steel increases over time, indicating the formation of a protective film that consists of zinc corrosion products. These products were identified as zincite and simonkolleite. The pH values obtained for the runoff solutions are similar to those of the reference rainwater samples, and the chloride concentrations of the runoff solutions are approximately twice those of the rainwater.
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spelling Atmospheric corrosion of galvanized steel and precipitation runoff from zinc in a marine environmentatmospheric corrosiongalvanized steelmass lossrunoffchlorideThis study focuses on the behavior of galvanized steel in a corrosive marine environment and on the runoff process for the same material occurring in Valparaiso, Chile. The corrosion potential and corrosion rate evaluated via mass loss were used to determine the corrosion damage to the galvanized steel. The compositions of the corrosion products were determined using X-ray diffractometry (XRD), and their morphology through scanning electron microscopy (SEM). The runoff solutions collected after rainfall were analyzed to determine the pH value, and Cl-, SO4(2 -) and Zn2+ ion concentrations. The results after 15 months show that the corrosion potential of the galvanized steel increases over time, indicating the formation of a protective film that consists of zinc corrosion products. These products were identified as zincite and simonkolleite. The pH values obtained for the runoff solutions are similar to those of the reference rainwater samples, and the chloride concentrations of the runoff solutions are approximately twice those of the rainwater.Sociedade Brasileira de Química2013-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532013000300013Journal of the Brazilian Chemical Society v.24 n.3 2013reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.5935/0103-5053.20130060info:eu-repo/semantics/openAccessVera,RosaGuerrero,FabiánDelgado,DianaAraya,Raqueleng2013-05-24T00:00:00Zoai:scielo:S0103-50532013000300013Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2013-05-24T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Atmospheric corrosion of galvanized steel and precipitation runoff from zinc in a marine environment
title Atmospheric corrosion of galvanized steel and precipitation runoff from zinc in a marine environment
spellingShingle Atmospheric corrosion of galvanized steel and precipitation runoff from zinc in a marine environment
Vera,Rosa
atmospheric corrosion
galvanized steel
mass loss
runoff
chloride
title_short Atmospheric corrosion of galvanized steel and precipitation runoff from zinc in a marine environment
title_full Atmospheric corrosion of galvanized steel and precipitation runoff from zinc in a marine environment
title_fullStr Atmospheric corrosion of galvanized steel and precipitation runoff from zinc in a marine environment
title_full_unstemmed Atmospheric corrosion of galvanized steel and precipitation runoff from zinc in a marine environment
title_sort Atmospheric corrosion of galvanized steel and precipitation runoff from zinc in a marine environment
author Vera,Rosa
author_facet Vera,Rosa
Guerrero,Fabián
Delgado,Diana
Araya,Raquel
author_role author
author2 Guerrero,Fabián
Delgado,Diana
Araya,Raquel
author2_role author
author
author
dc.contributor.author.fl_str_mv Vera,Rosa
Guerrero,Fabián
Delgado,Diana
Araya,Raquel
dc.subject.por.fl_str_mv atmospheric corrosion
galvanized steel
mass loss
runoff
chloride
topic atmospheric corrosion
galvanized steel
mass loss
runoff
chloride
description This study focuses on the behavior of galvanized steel in a corrosive marine environment and on the runoff process for the same material occurring in Valparaiso, Chile. The corrosion potential and corrosion rate evaluated via mass loss were used to determine the corrosion damage to the galvanized steel. The compositions of the corrosion products were determined using X-ray diffractometry (XRD), and their morphology through scanning electron microscopy (SEM). The runoff solutions collected after rainfall were analyzed to determine the pH value, and Cl-, SO4(2 -) and Zn2+ ion concentrations. The results after 15 months show that the corrosion potential of the galvanized steel increases over time, indicating the formation of a protective film that consists of zinc corrosion products. These products were identified as zincite and simonkolleite. The pH values obtained for the runoff solutions are similar to those of the reference rainwater samples, and the chloride concentrations of the runoff solutions are approximately twice those of the rainwater.
publishDate 2013
dc.date.none.fl_str_mv 2013-03-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532013000300013
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532013000300013
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.5935/0103-5053.20130060
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Química
publisher.none.fl_str_mv Sociedade Brasileira de Química
dc.source.none.fl_str_mv Journal of the Brazilian Chemical Society v.24 n.3 2013
reponame:Journal of the Brazilian Chemical Society (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Journal of the Brazilian Chemical Society (Online)
collection Journal of the Brazilian Chemical Society (Online)
repository.name.fl_str_mv Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv ||office@jbcs.sbq.org.br
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