Corrosion Study of Electroless Ni-P-W Coatings Using Electrochemical Impedance Spectroscopy

Detalhes bibliográficos
Autor(a) principal: Roy,Supriyo
Data de Publicação: 2012
Outros Autores: Sahoo,Prasanta
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042012000300005
Resumo: The present study investigates the significance of different coating process parameters on the corrosion behaviour of electrolessly deposited Ni-P-W coatings on mild steel substrate. The process parameters considered are concentration of nickel source, concentration of reducing agent, concentration of tungsten source and annealing temperature. The corrosion characteristic is evaluated by electrochemical impedance spectroscopy technique. The responses considered are charge transfer resistance and double layer capacitance. The Taguchi technique coupled with grey analysis is employed to find out the optimum combination of the process parameters for better corrosion resistance. Analysis of variance (ANOVA) reveals the contribution of the process parameters on the corrosion property of Ni-P-W coating. Finally a validation test is performed to justify the experimental result. The microstructure of the surface is studied by scanning electron microscopy (SEM); energy dispersive x-ray analysis (EDX) reveals the chemical composition and the x-ray diffraction analysis (XRD) is used to identify the phase transformation behaviour of the coating.
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spelling Corrosion Study of Electroless Ni-P-W Coatings Using Electrochemical Impedance Spectroscopyelectrochemical impedance spectroscopycorrosionNi-P-W coatingoptimizationThe present study investigates the significance of different coating process parameters on the corrosion behaviour of electrolessly deposited Ni-P-W coatings on mild steel substrate. The process parameters considered are concentration of nickel source, concentration of reducing agent, concentration of tungsten source and annealing temperature. The corrosion characteristic is evaluated by electrochemical impedance spectroscopy technique. The responses considered are charge transfer resistance and double layer capacitance. The Taguchi technique coupled with grey analysis is employed to find out the optimum combination of the process parameters for better corrosion resistance. Analysis of variance (ANOVA) reveals the contribution of the process parameters on the corrosion property of Ni-P-W coating. Finally a validation test is performed to justify the experimental result. The microstructure of the surface is studied by scanning electron microscopy (SEM); energy dispersive x-ray analysis (EDX) reveals the chemical composition and the x-ray diffraction analysis (XRD) is used to identify the phase transformation behaviour of the coating.Sociedade Portuguesa de Electroquímica2012-05-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articletext/htmlhttp://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042012000300005Portugaliae Electrochimica Acta v.30 n.3 2012reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAPenghttp://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042012000300005Roy,SupriyoSahoo,Prasantainfo:eu-repo/semantics/openAccess2024-02-06T17:07:10Zoai:scielo:S0872-19042012000300005Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:20:12.472608Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Corrosion Study of Electroless Ni-P-W Coatings Using Electrochemical Impedance Spectroscopy
title Corrosion Study of Electroless Ni-P-W Coatings Using Electrochemical Impedance Spectroscopy
spellingShingle Corrosion Study of Electroless Ni-P-W Coatings Using Electrochemical Impedance Spectroscopy
Roy,Supriyo
electrochemical impedance spectroscopy
corrosion
Ni-P-W coating
optimization
title_short Corrosion Study of Electroless Ni-P-W Coatings Using Electrochemical Impedance Spectroscopy
title_full Corrosion Study of Electroless Ni-P-W Coatings Using Electrochemical Impedance Spectroscopy
title_fullStr Corrosion Study of Electroless Ni-P-W Coatings Using Electrochemical Impedance Spectroscopy
title_full_unstemmed Corrosion Study of Electroless Ni-P-W Coatings Using Electrochemical Impedance Spectroscopy
title_sort Corrosion Study of Electroless Ni-P-W Coatings Using Electrochemical Impedance Spectroscopy
author Roy,Supriyo
author_facet Roy,Supriyo
Sahoo,Prasanta
author_role author
author2 Sahoo,Prasanta
author2_role author
dc.contributor.author.fl_str_mv Roy,Supriyo
Sahoo,Prasanta
dc.subject.por.fl_str_mv electrochemical impedance spectroscopy
corrosion
Ni-P-W coating
optimization
topic electrochemical impedance spectroscopy
corrosion
Ni-P-W coating
optimization
description The present study investigates the significance of different coating process parameters on the corrosion behaviour of electrolessly deposited Ni-P-W coatings on mild steel substrate. The process parameters considered are concentration of nickel source, concentration of reducing agent, concentration of tungsten source and annealing temperature. The corrosion characteristic is evaluated by electrochemical impedance spectroscopy technique. The responses considered are charge transfer resistance and double layer capacitance. The Taguchi technique coupled with grey analysis is employed to find out the optimum combination of the process parameters for better corrosion resistance. Analysis of variance (ANOVA) reveals the contribution of the process parameters on the corrosion property of Ni-P-W coating. Finally a validation test is performed to justify the experimental result. The microstructure of the surface is studied by scanning electron microscopy (SEM); energy dispersive x-ray analysis (EDX) reveals the chemical composition and the x-ray diffraction analysis (XRD) is used to identify the phase transformation behaviour of the coating.
publishDate 2012
dc.date.none.fl_str_mv 2012-05-01
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042012000300005
url http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042012000300005
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042012000300005
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 Portuguesa de Electroquímica
publisher.none.fl_str_mv Sociedade Portuguesa de Electroquímica
dc.source.none.fl_str_mv Portugaliae Electrochimica Acta v.30 n.3 2012
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
institution RCAAP
reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv
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