Effects of the constitution of CrON diffusion barrier on the oxidation resistance and interfacial fracture of duplex coating system

Detalhes bibliográficos
Autor(a) principal: Li, W. Z.
Data de Publicação: 2012
Outros Autores: Yi, D. Q., Li, Y. Q., Liu, H. Q., Sun, C.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10316/20044
https://doi.org/10.1016/j.jallcom.2011.12.139
Resumo: The duplex coating system of a NiCrAlY overlayer with a CrON diffusion barrier with different phase contents was deposited by AIP method. The duplex coatings were characterized regarding their microstructure, and the ability of the diffusion barrier was evaluated. The oxidation resistance and the interfacial strength of the duplex coatings were investigated. The results indicated that the duplex coating system with a diffusion barrier with an O/N ratio ∼66 and a lower Cr2O3 phase content exhibited more excellent oxidation resistance and lesser interdiffusion than with a diffusion barrier with O/N ∼30.1. The exposed coating samples possessed an improved interfacial strength compared with the annealed samples in the two duplex coating systems. The stronger interfacial strength in the coating system with a diffusion barrier with a low Cr2O3 phase content was related to the fewer defects and lower residual stress in the diffusion barrier.
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spelling Effects of the constitution of CrON diffusion barrier on the oxidation resistance and interfacial fracture of duplex coating systemDuplex coatingsDiffusion barrierOxidation resistanceInterfacial strengthInterdiffusionThe duplex coating system of a NiCrAlY overlayer with a CrON diffusion barrier with different phase contents was deposited by AIP method. The duplex coatings were characterized regarding their microstructure, and the ability of the diffusion barrier was evaluated. The oxidation resistance and the interfacial strength of the duplex coatings were investigated. The results indicated that the duplex coating system with a diffusion barrier with an O/N ratio ∼66 and a lower Cr2O3 phase content exhibited more excellent oxidation resistance and lesser interdiffusion than with a diffusion barrier with O/N ∼30.1. The exposed coating samples possessed an improved interfacial strength compared with the annealed samples in the two duplex coating systems. The stronger interfacial strength in the coating system with a diffusion barrier with a low Cr2O3 phase content was related to the fewer defects and lower residual stress in the diffusion barrier.Elsevier2012-03info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10316/20044http://hdl.handle.net/10316/20044https://doi.org/10.1016/j.jallcom.2011.12.139engLI, W. Z. [et. al.] - Effects of the constitution of CrON diffusion barrier on the oxidation resistance and interfacial fracture of duplex coating system. "Journal of Alloys and Compounds". ISSN 0925-8388. Vol. 518 (2012) p. 86–950925-8388http://www.sciencedirect.com/science/journal/09258388Li, W. Z.Yi, D. Q.Li, Y. Q.Liu, H. Q.Sun, C.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2020-05-25T12:29:52Zoai:estudogeral.uc.pt:10316/20044Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:50:16.158583Repositório 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 Effects of the constitution of CrON diffusion barrier on the oxidation resistance and interfacial fracture of duplex coating system
title Effects of the constitution of CrON diffusion barrier on the oxidation resistance and interfacial fracture of duplex coating system
spellingShingle Effects of the constitution of CrON diffusion barrier on the oxidation resistance and interfacial fracture of duplex coating system
Li, W. Z.
Duplex coatings
Diffusion barrier
Oxidation resistance
Interfacial strength
Interdiffusion
title_short Effects of the constitution of CrON diffusion barrier on the oxidation resistance and interfacial fracture of duplex coating system
title_full Effects of the constitution of CrON diffusion barrier on the oxidation resistance and interfacial fracture of duplex coating system
title_fullStr Effects of the constitution of CrON diffusion barrier on the oxidation resistance and interfacial fracture of duplex coating system
title_full_unstemmed Effects of the constitution of CrON diffusion barrier on the oxidation resistance and interfacial fracture of duplex coating system
title_sort Effects of the constitution of CrON diffusion barrier on the oxidation resistance and interfacial fracture of duplex coating system
author Li, W. Z.
author_facet Li, W. Z.
Yi, D. Q.
Li, Y. Q.
Liu, H. Q.
Sun, C.
author_role author
author2 Yi, D. Q.
Li, Y. Q.
Liu, H. Q.
Sun, C.
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Li, W. Z.
Yi, D. Q.
Li, Y. Q.
Liu, H. Q.
Sun, C.
dc.subject.por.fl_str_mv Duplex coatings
Diffusion barrier
Oxidation resistance
Interfacial strength
Interdiffusion
topic Duplex coatings
Diffusion barrier
Oxidation resistance
Interfacial strength
Interdiffusion
description The duplex coating system of a NiCrAlY overlayer with a CrON diffusion barrier with different phase contents was deposited by AIP method. The duplex coatings were characterized regarding their microstructure, and the ability of the diffusion barrier was evaluated. The oxidation resistance and the interfacial strength of the duplex coatings were investigated. The results indicated that the duplex coating system with a diffusion barrier with an O/N ratio ∼66 and a lower Cr2O3 phase content exhibited more excellent oxidation resistance and lesser interdiffusion than with a diffusion barrier with O/N ∼30.1. The exposed coating samples possessed an improved interfacial strength compared with the annealed samples in the two duplex coating systems. The stronger interfacial strength in the coating system with a diffusion barrier with a low Cr2O3 phase content was related to the fewer defects and lower residual stress in the diffusion barrier.
publishDate 2012
dc.date.none.fl_str_mv 2012-03
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://hdl.handle.net/10316/20044
http://hdl.handle.net/10316/20044
https://doi.org/10.1016/j.jallcom.2011.12.139
url http://hdl.handle.net/10316/20044
https://doi.org/10.1016/j.jallcom.2011.12.139
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv LI, W. Z. [et. al.] - Effects of the constitution of CrON diffusion barrier on the oxidation resistance and interfacial fracture of duplex coating system. "Journal of Alloys and Compounds". ISSN 0925-8388. Vol. 518 (2012) p. 86–95
0925-8388
http://www.sciencedirect.com/science/journal/09258388
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv 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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