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Corrosion behaviour of FE and NI-based alloys in solar salt and corrosion mitigation strategies via protective coatings

2022-11Conference object Open access
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dc.contributor.authorOskay, Ceyhun
dc.contributor.authorMeißner, Tobias
dc.contributor.authorGrégoire, Benjamin
dc.contributor.authorBurek, B.O.
dc.contributor.authorSchlereth, Clara
dc.contributor.authorBonk, Alexander
dc.contributor.authorBik, Maciej
dc.contributor.authorSolimani, Ali
dc.contributor.authorGaletz, Mathias
dc.date.accessioned2022-11-21T16:07:32Z
dc.date.available2022-11-21T16:07:32Z
dc.date.issued2022-11
dc.description.abstractABSTRACT: This study investigated the corrosion behaviour of commercial and model Fe- and Ni-based alloys in solar salt at 600°C. The thermal decomposition of nitrate salts led to an increasing concentration of oxidizing agents in the salt melt and thus to a higher corrosion rate. For Fe-based alloys, the oxide scales contained a Na- and Fe-rich outer layer, followed by an inner Cr-rich layer and nitridation as well as Cr-depletion was observed at the scale/metal interface. Furthermore, higher extent of chloride impurities in solar salt, led to a significantly higher corrosion rate for ferritic-martensitic alloys. For Ni-based alloys, the formation of a duplex scale consisting of a NiO outer and Ni-Cr spinel layer showed protective character during isothermal exposure; however even for Ni-based alloys, Cr was detected in the salt melt, which showed evidence for its dissolution in the melt as toxic hexavalent Cr. Diffusion aluminide and electroless Ni-P coatings deposited on cost-efficient ferriticmartensitic alloys led to formation of protective oxide scales and hindered the Cr-dissolution into the salt melt.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationOskay, Ceyhun... [et.al.] - Corrosion behaviour of FE and NI-based alloys in solar salt and corrosion mitigation strategies via protective coatings. In: Livro de Resumos : 8as Jornadas de Corrosão e Proteção de Materiais, Fórum Tecnológico, Lisboa, 24 novembro, 2022, p. 10-15pt_PT
dc.identifier.doi10.34637/3jh1-ab40pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.9/3936
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherLNEG - Laboratório Nacional de Energia e Geologiapt_PT
dc.relationRaising the Lifetime of Functional Materials for Concentrated Solar Power Technology
dc.relation.publisherversionhttps://doi.org/10.34637/3jh1-ab40pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectConcentrated solar powerpt_PT
dc.subjectMolten nitrate corrosionpt_PT
dc.subjectCr-dissolutionpt_PT
dc.subjectProtective coatingspt_PT
dc.titleCorrosion behaviour of FE and NI-based alloys in solar salt and corrosion mitigation strategies via protective coatingspt_PT
dc.typeconference object
dspace.entity.typePublication
oaire.awardTitleRaising the Lifetime of Functional Materials for Concentrated Solar Power Technology
oaire.awardURIinfo:eu-repo/grantAgreement/EC/H2020/686008/EU
oaire.citation.conferencePlaceLisboa, Portugalpt_PT
oaire.citation.endPage15pt_PT
oaire.citation.startPage10pt_PT
oaire.citation.title8as Jornadas de Corrosão e Proteção de Materiaispt_PT
oaire.fundingStreamH2020
person.familyNameOskay
person.familyNameMeißner
person.familyNameGrégoire
person.familyNameSchlereth
person.familyNameBonk
person.familyNameBik
person.familyNameSolimani
person.familyNameGaletz
person.givenNameCeyhun
person.givenNameTobias
person.givenNameBenjamin
person.givenNameClara
person.givenNameAlexander
person.givenNameMaciej
person.givenNameAli
person.givenNameMathias
person.identifier.orcid0000-0001-7504-0160
person.identifier.orcid0000-0001-7657-288X
person.identifier.orcid0000-0002-2040-0891
person.identifier.orcid0000-0002-5770-782X
person.identifier.orcid0000-0002-0676-7267
person.identifier.orcid0000-0003-0921-8797
person.identifier.orcid0000-0001-7676-1875
person.identifier.orcid0000-0001-6847-2053
person.identifier.ridM-4180-2015
person.identifier.scopus-author-id57164581100
person.identifier.scopus-author-id57188746760
person.identifier.scopus-author-id23036499800
person.identifier.scopus-author-id16315559300
project.funder.identifierhttp://doi.org/10.13039/501100008530
project.funder.nameEuropean Commission
rcaap.rightsopenAccesspt_PT
rcaap.typeconferenceObjectpt_PT
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