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A direct comparative study of the corrosion behaviour of Si-free and Si-rich slurry aluminide coatings in molten carbonate melts

2022-11Conference object Open access
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dc.contributor.authorAudigié, Pauline
dc.contributor.authorRodríguez Catela, Sergio
dc.contributor.authorAgüero, Alina
dc.contributor.authorPedrosa, Fátima
dc.contributor.authorPaiva Luís, Teresa
dc.contributor.authorCunha Diamantino, Teresa
dc.date.accessioned2022-11-21T16:30:39Z
dc.date.available2022-11-21T16:30:39Z
dc.date.issued2022-11
dc.description.abstractABSTRACT: This study is focused on the evaluation of the hot corrosion behaviour of two low-cost slurry aluminide coatings with and without Si addition deposited on ferritic-martensitic steels, comparing them with uncoated steel, after 1000-h of exposure to Li, K, Na molten carbonates at 650ºC, under static and dynamic conditions with a high linear velocity (1.3 m/s). Both coatings evidenced a high performance increase in comparison with uncoated substrates after exposure in both conditions. Both coatings behaved in a similar way according to the gravimetric results. However, after dynamic exposure, the Si-free aluminide maintained its morphology and composition after 1000 h with α-LiAlO2 as the only corrosion product while the Si-rich coating showed a higher attack extent in the outer part and developed a large quantity of voids at the coating/substrate interface, leading to substrate corrosion.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationAudigié, P... [et.al.] - A direct comparative study of the corrosion behaviour of Si-free and Si-rich slurry aluminide coatings in molten carbonate melts. In: Livro de Resumos : 8as Jornadas de Corrosão e Proteção de Materiais, Fórum Tecnológico, Lisboa, 24 novembro, 2022, p. 33-35pt_PT
dc.identifier.doi10.34637/xhq0-qz71pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.9/3943
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherLNEG - Laboratório Nacional de Energia e Geologiapt_PT
dc.relationPID2020-115866RB-C21pt_PT
dc.relationSolar Facilities for the European Research Area - Third Phase
dc.relation.publisherversionhttps://doi.org/10.34637/xhq0-qz71pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectConcentrated solar powerpt_PT
dc.subjectThermal energy storagept_PT
dc.subjectHigh-temperature corrosionpt_PT
dc.subjectCoatingspt_PT
dc.subjectMolten carbonatespt_PT
dc.titleA direct comparative study of the corrosion behaviour of Si-free and Si-rich slurry aluminide coatings in molten carbonate meltspt_PT
dc.typeconference object
dspace.entity.typePublication
oaire.awardTitleSolar Facilities for the European Research Area - Third Phase
oaire.awardURIinfo:eu-repo/grantAgreement/EC/H2020/823802/EU
oaire.citation.conferencePlaceLisboa, Portugalpt_PT
oaire.citation.endPage35pt_PT
oaire.citation.startPage33pt_PT
oaire.citation.title8as Jornadas de Corrosão e Proteção de Materiaispt_PT
oaire.fundingStreamH2020
person.familyNameAudigié
person.familyNameRodríguez Catela
person.familyNameAgüero
person.familyNamePedrosa
person.familyNamePaiva Luís
person.familyNameCunha Diamantino
person.givenNamePauline
person.givenNameSergio
person.givenNameAlina
person.givenNameFátima
person.givenNameTeresa
person.givenNameTeresa
person.identifier.ciencia-idA81C-1FE7-1D42
person.identifier.orcid0000-0001-7578-4100
person.identifier.orcid0000-0001-6941-9262
person.identifier.orcid0000-0002-3373-4532
person.identifier.orcid0000-0002-0479-822X
person.identifier.orcid0000-0002-3000-5246
person.identifier.orcid0000-0002-0481-0460
person.identifier.ridT-6289-2017
person.identifier.ridC-9305-2015
person.identifier.ridG-5063-2017
person.identifier.scopus-author-id55837638400
person.identifier.scopus-author-id57197922189
person.identifier.scopus-author-id7004630838
project.funder.identifierhttp://doi.org/10.13039/501100008530
project.funder.nameEuropean Commission
rcaap.rightsopenAccesspt_PT
rcaap.typeconferenceObjectpt_PT
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