Oxidation Behaviour of IN-738 LC Superalloys in the Presence of Ionic Salts at 1173 K

Detalhes bibliográficos
Autor(a) principal: Misbahul Amin,M.
Data de Publicação: 2003
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=S0872-19042003000400008
Resumo: Oxidation of the alloy having nominal composition Ni-16Cr-8.5Co(wt.%) was studied in the presence of KCl and K2CO3 at 1173 K in air. Chemical composition of oxide scales and scale morphologies were determined by means of X-ray diffraction analysis and scanning electron microscopic studies. The oxide scales of KCl- and K2CO3- coated alloys showed complex microstructures and compositions. This behaviour was ascribed to the release of volatile metallic chlorides, evolution of CO/CO2 gas as well as formation of fluxing products. The high temperature oxidation resistance is not only related to the nature of the passive film but is also strongly dependent on the salt environments and the structure of alloy.
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spelling Oxidation Behaviour of IN-738 LC Superalloys in the Presence of Ionic Salts at 1173 KOxidationIN-738 LC AlloyKCl, K2CO3Oxidation of the alloy having nominal composition Ni-16Cr-8.5Co(wt.%) was studied in the presence of KCl and K2CO3 at 1173 K in air. Chemical composition of oxide scales and scale morphologies were determined by means of X-ray diffraction analysis and scanning electron microscopic studies. The oxide scales of KCl- and K2CO3- coated alloys showed complex microstructures and compositions. This behaviour was ascribed to the release of volatile metallic chlorides, evolution of CO/CO2 gas as well as formation of fluxing products. The high temperature oxidation resistance is not only related to the nature of the passive film but is also strongly dependent on the salt environments and the structure of alloy.Sociedade Portuguesa de Electroquímica2003-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articletext/htmlhttp://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042003000400008Portugaliae Electrochimica Acta v.21 n.4 2003reponame: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=S0872-19042003000400008Misbahul Amin,M.info:eu-repo/semantics/openAccess2024-02-06T17:06:42Zoai:scielo:S0872-19042003000400008Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:19:56.899019Repositório 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 Oxidation Behaviour of IN-738 LC Superalloys in the Presence of Ionic Salts at 1173 K
title Oxidation Behaviour of IN-738 LC Superalloys in the Presence of Ionic Salts at 1173 K
spellingShingle Oxidation Behaviour of IN-738 LC Superalloys in the Presence of Ionic Salts at 1173 K
Misbahul Amin,M.
Oxidation
IN-738 LC Alloy
KCl, K2CO3
title_short Oxidation Behaviour of IN-738 LC Superalloys in the Presence of Ionic Salts at 1173 K
title_full Oxidation Behaviour of IN-738 LC Superalloys in the Presence of Ionic Salts at 1173 K
title_fullStr Oxidation Behaviour of IN-738 LC Superalloys in the Presence of Ionic Salts at 1173 K
title_full_unstemmed Oxidation Behaviour of IN-738 LC Superalloys in the Presence of Ionic Salts at 1173 K
title_sort Oxidation Behaviour of IN-738 LC Superalloys in the Presence of Ionic Salts at 1173 K
author Misbahul Amin,M.
author_facet Misbahul Amin,M.
author_role author
dc.contributor.author.fl_str_mv Misbahul Amin,M.
dc.subject.por.fl_str_mv Oxidation
IN-738 LC Alloy
KCl, K2CO3
topic Oxidation
IN-738 LC Alloy
KCl, K2CO3
description Oxidation of the alloy having nominal composition Ni-16Cr-8.5Co(wt.%) was studied in the presence of KCl and K2CO3 at 1173 K in air. Chemical composition of oxide scales and scale morphologies were determined by means of X-ray diffraction analysis and scanning electron microscopic studies. The oxide scales of KCl- and K2CO3- coated alloys showed complex microstructures and compositions. This behaviour was ascribed to the release of volatile metallic chlorides, evolution of CO/CO2 gas as well as formation of fluxing products. The high temperature oxidation resistance is not only related to the nature of the passive film but is also strongly dependent on the salt environments and the structure of alloy.
publishDate 2003
dc.date.none.fl_str_mv 2003-01-01
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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status_str publishedVersion
dc.identifier.uri.fl_str_mv http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042003000400008
url http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042003000400008
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv http://scielo.pt/scielo.php?script=sci_arttext&pid=S0872-19042003000400008
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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.21 n.4 2003
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
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