Coatings for safe long term wet storage of spent Al-clad research reactor fuels
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo de conferência |
Título da fonte: | Repositório Institucional do IPEN |
Texto Completo: | http://repositorio.ipen.br/handle/123456789/31216 |
Resumo: | Pitting corrosion of the aluminium cladding of spent research reactor (RR) fuels in wet storage has been observed and the use of conversion coatings to protect the cladding was proposed. A coating prepared by conventional chemical processing as opposed to electrochemical processing is the only option due to constraints related to the shape of the fuel and its high radioactivity. Hence, hydrotalcite (HTC) and boehmite were considered. This paper presents: (a) preparation of hydrotalcite (HTC) coatings from different baths followed by post-coating treatments; (b) corrosion behavior of HTC coated AA 6061 alloy; (c) results of field studies in which uncoated and HTC 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 extended periods. The laboratory and field tests revealed marked improvements in the corrosion resistance of HTC coated specimens, coupons and plates. The mechanism of corrosion protection is presented. |
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2020-05-29T20:01:47Z2020-05-29T20:01:47ZNovember 16-20, 2015http://repositorio.ipen.br/handle/123456789/31216Pitting corrosion of the aluminium cladding of spent research reactor (RR) fuels in wet storage has been observed and the use of conversion coatings to protect the cladding was proposed. A coating prepared by conventional chemical processing as opposed to electrochemical processing is the only option due to constraints related to the shape of the fuel and its high radioactivity. Hence, hydrotalcite (HTC) and boehmite were considered. This paper presents: (a) preparation of hydrotalcite (HTC) coatings from different baths followed by post-coating treatments; (b) corrosion behavior of HTC coated AA 6061 alloy; (c) results of field studies in which uncoated and HTC 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 extended periods. The laboratory and field tests revealed marked improvements in the corrosion resistance of HTC coated specimens, coupons and plates. The mechanism of corrosion protection is presented.Submitted by Pedro Silva Filho (pfsilva@ipen.br) on 2020-05-29T20:01:47Z No. of bitstreams: 1 26995.pdf: 403219 bytes, checksum: af1fc50bf5e4eb0c51dd29e0cf9a6996 (MD5)Made available in DSpace on 2020-05-29T20:01:47Z (GMT). No. of bitstreams: 1 26995.pdf: 403219 bytes, checksum: af1fc50bf5e4eb0c51dd29e0cf9a6996 (MD5)1-8International Atomic Energy Agencycladdingcoatingscorrosion protectioncorrosion resistanceiear-1 reactorpitting corrosionspent fuelswet storageCoatings for safe long term wet storage of spent Al-clad research reactor fuelsinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjectIVienna, AustriaVienna, Austria9517334881274600600600600RAMANATHAN, L.V.FERNANDES, S.M.C.CORREA, O.V.SOUZA, J.A. deANTUNES, R.A.OLIVEIRA, M.C.L. deINTERNATIONAL CONFERENCE ON RESEARCH REACTORS: SAFE MANAGEMENT AND EFFECTIVE UTILIZATIONinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional do IPENinstname:Instituto de Pesquisas Energéticas e Nucleares (IPEN)instacron:IPEN269952015SOUZA, J.A. deCORREA, O.V.FERNANDES, S.M.C.RAMANATHAN, L.V.20-05Proceedings1274488173395SOUZA, J.A. de:1274:410:NCORREA, O.V.:488:730:NFERNANDES, S.M.C.:1733:730:NRAMANATHAN, L.V.:95:730:SORIGINAL26995.pdf26995.pdfapplication/pdf403219http://repositorio.ipen.br/bitstream/123456789/31216/1/26995.pdfaf1fc50bf5e4eb0c51dd29e0cf9a6996MD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81748http://repositorio.ipen.br/bitstream/123456789/31216/2/license.txt8a4605be74aa9ea9d79846c1fba20a33MD52123456789/312162022-03-14 17:13:22.568oai:repositorio.ipen.br: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Repositório InstitucionalPUBhttp://repositorio.ipen.br/oai/requestbibl@ipen.bropendoar:45102022-03-14T17:13:22Repositório Institucional do IPEN - Instituto de Pesquisas Energéticas e Nucleares (IPEN)false |
dc.title.pt_BR.fl_str_mv |
Coatings for safe long term wet storage of spent Al-clad research reactor fuels |
title |
Coatings for safe long term wet storage of spent Al-clad research reactor fuels |
spellingShingle |
Coatings for safe long term wet storage of spent Al-clad research reactor fuels RAMANATHAN, L.V. cladding coatings corrosion protection corrosion resistance iear-1 reactor pitting corrosion spent fuels wet storage |
title_short |
Coatings for safe long term wet storage of spent Al-clad research reactor fuels |
title_full |
Coatings for safe long term wet storage of spent Al-clad research reactor fuels |
title_fullStr |
Coatings for safe long term wet storage of spent Al-clad research reactor fuels |
title_full_unstemmed |
Coatings for safe long term wet storage of spent Al-clad research reactor fuels |
title_sort |
Coatings for safe long term wet storage of spent Al-clad research reactor fuels |
author |
RAMANATHAN, L.V. |
author_facet |
RAMANATHAN, L.V. FERNANDES, S.M.C. CORREA, O.V. SOUZA, J.A. de ANTUNES, R.A. OLIVEIRA, M.C.L. de INTERNATIONAL CONFERENCE ON RESEARCH REACTORS: SAFE MANAGEMENT AND EFFECTIVE UTILIZATION |
author_role |
author |
author2 |
FERNANDES, S.M.C. CORREA, O.V. SOUZA, J.A. de ANTUNES, R.A. OLIVEIRA, M.C.L. de INTERNATIONAL CONFERENCE ON RESEARCH REACTORS: SAFE MANAGEMENT AND EFFECTIVE UTILIZATION |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
RAMANATHAN, L.V. FERNANDES, S.M.C. CORREA, O.V. SOUZA, J.A. de ANTUNES, R.A. OLIVEIRA, M.C.L. de INTERNATIONAL CONFERENCE ON RESEARCH REACTORS: SAFE MANAGEMENT AND EFFECTIVE UTILIZATION |
dc.subject.por.fl_str_mv |
cladding coatings corrosion protection corrosion resistance iear-1 reactor pitting corrosion spent fuels wet storage |
topic |
cladding coatings corrosion protection corrosion resistance iear-1 reactor pitting corrosion spent fuels wet storage |
description |
Pitting corrosion of the aluminium cladding of spent research reactor (RR) fuels in wet storage has been observed and the use of conversion coatings to protect the cladding was proposed. A coating prepared by conventional chemical processing as opposed to electrochemical processing is the only option due to constraints related to the shape of the fuel and its high radioactivity. Hence, hydrotalcite (HTC) and boehmite were considered. This paper presents: (a) preparation of hydrotalcite (HTC) coatings from different baths followed by post-coating treatments; (b) corrosion behavior of HTC coated AA 6061 alloy; (c) results of field studies in which uncoated and HTC 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 extended periods. The laboratory and field tests revealed marked improvements in the corrosion resistance of HTC coated specimens, coupons and plates. The mechanism of corrosion protection is presented. |
publishDate |
2020 |
dc.date.evento.pt_BR.fl_str_mv |
November 16-20, 2015 |
dc.date.accessioned.fl_str_mv |
2020-05-29T20:01:47Z |
dc.date.available.fl_str_mv |
2020-05-29T20:01:47Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/conferenceObject |
format |
conferenceObject |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://repositorio.ipen.br/handle/123456789/31216 |
url |
http://repositorio.ipen.br/handle/123456789/31216 |
dc.relation.authority.fl_str_mv |
95 1733 488 1274 |
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600 600 600 600 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
1-8 |
dc.coverage.pt_BR.fl_str_mv |
I |
dc.publisher.none.fl_str_mv |
International Atomic Energy Agency |
publisher.none.fl_str_mv |
International Atomic Energy Agency |
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