Corrosion behavior of hydrotalcite coated AA 6061 alloy

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dc.contributor.authorFERNANDES, STELA M.
dc.contributor.authorCORREA, OLANDIR V.
dc.contributor.authorSOUZA, JOSE A.
dc.contributor.authorRAMANATHAN, LALGUDI V.
dc.contributor.authorANTUNES, RENATO A.
dc.contributor.authorOLIVEIRA, MARA C. de
dc.coverageInternacionalpt_BR
dc.creator.eventoCONGRESSO BRASILEIRO DE CORROSÃO, 34.; INTERNATIONAL CORROSION MEETING, 5th.; CONGRESO IBEROAMERICANO DE CORROSIÓN Y PROTECCIÓN, 10th.; CONCURSO DE FOTOGRAFIA DE CORROSÃO E DEGRADAÇÃO DE MATERIAIS, 19.; EXPOSIÇÃO DE TECNOLOGIAS PARA PREVENÇÃO E CONTROLE DA CORROSÃO, 34pt_BR
dc.date.accessioned2016-06-29T16:59:12Z
dc.date.available2016-06-29T16:59:12Z
dc.date.evento19-23 de maio, 2014pt_BR
dc.description.abstractPitting corrosion of the aluminium cladding of spent research reactor (RR) fuel during wet storage is the main form of degradation and this could eventually lead to release of fissile material and contamination of storage facilities. Hence, the use of conversion coatings to protect spent Al-clad RR fuel during long term storage was proposed. Preliminary laboratory and field investigations carried out at IPEN in São Paulo, Brazil, revealed that cerium hydroxide coatings increased the corrosion resistance of Al alloys. These investigations were extended to include boehmite, hydrotalcite (HTC), cerium modified boehmite and cerium modified HTC coatings on Al alloy surfaces. This paper presents: (a) the preparation of hydrotalcite coatings from different baths followed by post-coating treatments; (b) the results of x-ray diffraction analysis and scanning electron microscopic studies of the HTC coatings; (c) the effect of HTC coating process variables such as temperature, duration of treatment and the duration of cerium modification on HTC morphology and electrochemical polarization behavior of HTC coated AA 6061 alloy in NaCl; (d) results of field tests in which uncoated and HTC coated AA 6061 coupons were exposed to the IEA-R1 reactor spent fuel basin for up to 5 months. The laboratory test specimens as well as the field test coupons coated with HTC from a high temperature bath followed by cerium modification were the most resistant to pitting.
dc.event.siglaINTERCORRpt_BR
dc.identifier.citationFERNANDES, STELA M.; CORREA, OLANDIR V.; SOUZA, JOSE A.; RAMANATHAN, LALGUDI V.; ANTUNES, RENATO A.; OLIVEIRA, MARA C. de. Corrosion behavior of hydrotalcite coated AA 6061 alloy. In: CONGRESSO BRASILEIRO DE CORROSÃO, 34.; INTERNATIONAL CORROSION MEETING, 5th.; CONGRESO IBEROAMERICANO DE CORROSIÓN Y PROTECCIÓN, 10th.; CONCURSO DE FOTOGRAFIA DE CORROSÃO E DEGRADAÇÃO DE MATERIAIS, 19.; EXPOSIÇÃO DE TECNOLOGIAS PARA PREVENÇÃO E CONTROLE DA CORROSÃO, 34, 19-23 de maio, 2014, Fortaleza, CE. <b>Anais...</b> Rio de Janeiro, RJ: Associação Brasileira de Corrosão – ABRACO, 2014. Disponível em: http://repositorio.ipen.br/handle/123456789/26438.
dc.identifier.orcidhttps://orcid.org/0000-0003-4822-8840
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/26438
dc.localRio de Janeiro, RJ
dc.local.eventoFortaleza, CEpt_BR
dc.publisherAssociação Brasileira de Corrosão – ABRACO
dc.rightsopenAccesspt_BR
dc.subjectcorrosion
dc.subjectcoatings
dc.subjectaluminium
dc.subjectalloys
dc.subjectchemical preparation
dc.subjectx-ray diffraction
dc.subjectscanning electron microscopy
dc.subjectiear-1 reactor
dc.titleCorrosion behavior of hydrotalcite coated AA 6061 alloypt_BR
dc.typeTexto completo de eventopt_BR
dspace.entity.typePublication
ipen.autorRENATO ALTOBELLI ANTUNES
ipen.autorLALGUDI VENKATARAMAN RAMANATHAN
ipen.autorJOSE ANTONIO BATISTA DE SOUZA
ipen.autorOLANDIR VERCINO CORREA
ipen.autorSTELA MARIA CRISTINA FERNANDES
ipen.codigoautor2685
ipen.codigoautor95
ipen.codigoautor1274
ipen.codigoautor488
ipen.codigoautor3822
ipen.contributor.ipenauthorRENATO ALTOBELLI ANTUNES
ipen.contributor.ipenauthorLALGUDI VENKATARAMAN RAMANATHAN
ipen.contributor.ipenauthorJOSE ANTONIO BATISTA DE SOUZA
ipen.contributor.ipenauthorOLANDIR VERCINO CORREA
ipen.contributor.ipenauthorSTELA MARIA CRISTINA FERNANDES
ipen.date.recebimento16-06pt_BR
ipen.event.datapadronizada2014pt_BR
ipen.identifier.ipendoc22349pt_BR
ipen.notas.internasAnaispt_BR
ipen.type.genreArtigo
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relation.isAuthorOfPublicatione6f22e32-63de-4600-8d3f-c47bbfe92e1f
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relation.isAuthorOfPublication.latestForDiscovery2c396248-be1d-4b23-8f62-02220e1cc3c2
sigepi.autor.atividadeFERNANDES, STELA M.:3822:-1:S
sigepi.autor.atividadeCORREA, OLANDIR V.:488:730:N
sigepi.autor.atividadeSOUZA, JOSE A.:1274:410:N
sigepi.autor.atividadeRAMANATHAN, LALGUDI V.:95:730:N
sigepi.autor.atividadeANTUNES, RENATO A.:2685:-1:N
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