Hydrotalcite coatings to protect spent sluminum-clad nuclear fuels during long term wet storage

Detalhes bibliográficos
Autor(a) principal: FERNANDES, S.M.C.
Data de Publicação: 2017
Outros Autores: CORREA, O.V., SOUZA, J.A. de, ANTUNES, R.A., OLIVEIRA, M.C.L. de, RAMANATHAN, L.V., EUROPEAN CORROSION CONGRESS
Tipo de documento: Artigo de conferência
Título da fonte: Repositório Institucional do IPEN
Texto Completo: http://repositorio.ipen.br/handle/123456789/27336
Resumo: Pitting corrosion of the aluminium cladding of spent research reactor (RR) fuels in wet storage has been reported and attributed to synergistic influence of certain water parameters. Hence, use of conversion coatings to protect spent Al-clad RR fuel during long term wet storage was proposed. The objective was to develop a coating using a conventional chemical process as opposed to an electrochemical process due to constraints related to the shape of the fuel and its high radioactivity. In this context hydrotalcite (HTC) and boehmite were considered. This paper presents: (a) preparation of boehmite and hydrotalcite (HTC) coatings from different baths followed by post-coating treatments; (b) corrosion behavior of coated AA 6061 alloy; (c) results of field studies in which uncoated and coated AA 6061 alloy coupons and plates, the latter assembled as a dummy fuel element, were exposed to the IEA-R1 reactor spent fuel basin for periods of up to 14 months. The laboratory tests revealed marked increase in corrosion resistance of HTC coated specimens. In field tests the HTC coated coupons and plates did not reveal any pits. The mechanism of corrosion protection is presented.
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spelling 2017-03-27T13:35:08Z2017-03-27T13:35:08ZSeptember 6-10, 2015http://repositorio.ipen.br/handle/123456789/27336Pitting corrosion of the aluminium cladding of spent research reactor (RR) fuels in wet storage has been reported and attributed to synergistic influence of certain water parameters. Hence, use of conversion coatings to protect spent Al-clad RR fuel during long term wet storage was proposed. The objective was to develop a coating using a conventional chemical process as opposed to an electrochemical process due to constraints related to the shape of the fuel and its high radioactivity. In this context hydrotalcite (HTC) and boehmite were considered. This paper presents: (a) preparation of boehmite and hydrotalcite (HTC) coatings from different baths followed by post-coating treatments; (b) corrosion behavior of coated AA 6061 alloy; (c) results of field studies in which uncoated and coated AA 6061 alloy coupons and plates, the latter assembled as a dummy fuel element, were exposed to the IEA-R1 reactor spent fuel basin for periods of up to 14 months. The laboratory tests revealed marked increase in corrosion resistance of HTC coated specimens. In field tests the HTC coated coupons and plates did not reveal any pits. The mechanism of corrosion protection is presented.Submitted by Marco Antonio Oliveira da Silva (maosilva@ipen.br) on 2017-03-27T13:35:08Z No. of bitstreams: 1 23674.pdf: 1124844 bytes, checksum: e1e087910beb8ef95d516381b27a90ed (MD5)Made available in DSpace on 2017-03-27T13:35:08Z (GMT). No. of bitstreams: 1 23674.pdf: 1124844 bytes, checksum: e1e087910beb8ef95d516381b27a90ed (MD5)1-8Frankfurt am Main, Germany: ASMETHydrotalcite coatings to protect spent sluminum-clad nuclear fuels during long term wet storageinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectEUROCORRIGraz, AustriaFERNANDES, S.M.C.CORREA, O.V.SOUZA, J.A. deANTUNES, R.A.OLIVEIRA, M.C.L. deRAMANATHAN, L.V.EUROPEAN CORROSION CONGRESSinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional do IPENinstname:Instituto de Pesquisas Energéticas e Nucleares (IPEN)instacron:IPEN236742015FERNANDES, S.M.C.CORREA, O.V.SOUZA, J.A. deRAMANATHAN, L.V.17-03Proceedings1733488248268595FERNANDES, S.M.C.:1733:730:SCORREA, O.V.:488:730:NSOUZA, J.A. DE:248:-1:NANTUNES, R.A.:2685:-1:NRAMANATHAN, L.V.:95:730:NORIGINAL23674.pdf23674.pdfapplication/pdf1124844http://repositorio.ipen.br/bitstream/123456789/27336/1/23674.pdfe1e087910beb8ef95d516381b27a90edMD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81748http://repositorio.ipen.br/bitstream/123456789/27336/2/license.txt8a4605be74aa9ea9d79846c1fba20a33MD52123456789/273362017-03-27 13:35:08.17oai:repositorio.ipen.br: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Repositório InstitucionalPUBhttp://repositorio.ipen.br/oai/requestbibl@ipen.bropendoar:45102017-03-27T13:35:08Repositório Institucional do IPEN - Instituto de Pesquisas Energéticas e Nucleares (IPEN)false
dc.title.pt_BR.fl_str_mv Hydrotalcite coatings to protect spent sluminum-clad nuclear fuels during long term wet storage
title Hydrotalcite coatings to protect spent sluminum-clad nuclear fuels during long term wet storage
spellingShingle Hydrotalcite coatings to protect spent sluminum-clad nuclear fuels during long term wet storage
FERNANDES, S.M.C.
title_short Hydrotalcite coatings to protect spent sluminum-clad nuclear fuels during long term wet storage
title_full Hydrotalcite coatings to protect spent sluminum-clad nuclear fuels during long term wet storage
title_fullStr Hydrotalcite coatings to protect spent sluminum-clad nuclear fuels during long term wet storage
title_full_unstemmed Hydrotalcite coatings to protect spent sluminum-clad nuclear fuels during long term wet storage
title_sort Hydrotalcite coatings to protect spent sluminum-clad nuclear fuels during long term wet storage
author FERNANDES, S.M.C.
author_facet FERNANDES, S.M.C.
CORREA, O.V.
SOUZA, J.A. de
ANTUNES, R.A.
OLIVEIRA, M.C.L. de
RAMANATHAN, L.V.
EUROPEAN CORROSION CONGRESS
author_role author
author2 CORREA, O.V.
SOUZA, J.A. de
ANTUNES, R.A.
OLIVEIRA, M.C.L. de
RAMANATHAN, L.V.
EUROPEAN CORROSION CONGRESS
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv FERNANDES, S.M.C.
CORREA, O.V.
SOUZA, J.A. de
ANTUNES, R.A.
OLIVEIRA, M.C.L. de
RAMANATHAN, L.V.
EUROPEAN CORROSION CONGRESS
description Pitting corrosion of the aluminium cladding of spent research reactor (RR) fuels in wet storage has been reported and attributed to synergistic influence of certain water parameters. Hence, use of conversion coatings to protect spent Al-clad RR fuel during long term wet storage was proposed. The objective was to develop a coating using a conventional chemical process as opposed to an electrochemical process due to constraints related to the shape of the fuel and its high radioactivity. In this context hydrotalcite (HTC) and boehmite were considered. This paper presents: (a) preparation of boehmite and hydrotalcite (HTC) coatings from different baths followed by post-coating treatments; (b) corrosion behavior of coated AA 6061 alloy; (c) results of field studies in which uncoated and coated AA 6061 alloy coupons and plates, the latter assembled as a dummy fuel element, were exposed to the IEA-R1 reactor spent fuel basin for periods of up to 14 months. The laboratory tests revealed marked increase in corrosion resistance of HTC coated specimens. In field tests the HTC coated coupons and plates did not reveal any pits. The mechanism of corrosion protection is presented.
publishDate 2017
dc.date.evento.pt_BR.fl_str_mv September 6-10, 2015
dc.date.accessioned.fl_str_mv 2017-03-27T13:35:08Z
dc.date.available.fl_str_mv 2017-03-27T13:35:08Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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dc.identifier.uri.fl_str_mv http://repositorio.ipen.br/handle/123456789/27336
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dc.publisher.none.fl_str_mv Frankfurt am Main, Germany: ASMET
publisher.none.fl_str_mv Frankfurt am Main, Germany: ASMET
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