An investigation on the corrosion behaviour of Nd-Fe-B magnets in a chloride solution

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dc.contributor.authorCOSTA, I.pt_BR
dc.contributor.authorOLIVEIRA, M.C.L.pt_BR
dc.contributor.authorMELO, H.G.pt_BR
dc.contributor.authorFARIA JUNIOR, R.N.pt_BR
dc.coverageInternacionalpt_BR
dc.creator.eventoINTERNATIONAL LATIN-AMERICAN CONFERENCE ON POWDER TECHNOLOGY, 4thpt_BR
dc.date.accessioned2014-11-17T18:16:45Zpt_BR
dc.date.accessioned2014-11-18T18:22:13Zpt_BR
dc.date.accessioned2015-04-01T21:39:57Z
dc.date.available2014-11-17T18:16:45Zpt_BR
dc.date.available2014-11-18T18:22:13Zpt_BR
dc.date.available2015-04-01T21:39:57Z
dc.date.eventoNov. 19-21, 2003pt_BR
dc.description.abstractIn this study, the corrosion behaviour of a sintered commercial Nd-Fe-B magnet has been investigated in naturally aerated and deaerated 3.5 (m/v)% sodium chloride solutions. Magnetized specimens were used in this investigation. The corrosion behaviour of the specimens was monitored an increasing test times by means of electrochemical impedance spectroscopy (EIS). Potentiodynamic polarization curves and surface observation by scanning electron microscopy (SEM), were also curied out after 30 days of immersion in the test solutions. Experimental results indicated that the corrosion resistance was affected by aeration of the solution. The corrosive attack penetrates deeply into the specimens and, consequently, the magnetic properties decreased with immersion time. The magnetic properties most influenced by corrosion were the remanence (Br) and the maximum energy product (BHmax), both presenting a reduction corresponding to 6%, after 30 days of immersion.
dc.event.siglaPTECH 2003pt_BR
dc.identifier.citationCOSTA, I.; OLIVEIRA, M.C.L.; MELO, H.G.; FARIA JUNIOR, R.N. An investigation on the corrosion behaviour of Nd-Fe-B magnets in a chloride solution. In: INTERNATIONAL LATIN-AMERICAN CONFERENCE ON POWDER TECHNOLOGY, 4th, Nov. 19-21, 2003, Guaruja, SP. <b>Proceedings...</b> Disponível em: http://repositorio.ipen.br/handle/123456789/16444.
dc.identifier.orcidhttps://orcid.org/0000-0002-4987-3334
dc.identifier.urihttp://repositorio.ipen.br/handle/123456789/16444pt_BR
dc.local.eventoGuaruja, SPpt_BR
dc.rightsopenAccess
dc.subjectpermanent magnetspt_BR
dc.subjectneodymium alloyspt_BR
dc.subjectiron alloyspt_BR
dc.subjectboron alloyspt_BR
dc.subjectcorrosionpt_BR
dc.subjectcorrosion resistancept_BR
dc.subjectsodium chloridespt_BR
dc.subjectaqueous solutionspt_BR
dc.subjectpolarizationpt_BR
dc.subjectmicrostructurept_BR
dc.subjectmagnetic propertiespt_BR
dc.subjectimpedance
dc.subjectspectroscopy
dc.titleAn investigation on the corrosion behaviour of Nd-Fe-B magnets in a chloride solutionpt_BR
dc.typeTexto completo de eventopt_BR
dspace.entity.typePublication
ipen.autorRUBENS NUNES DE FARIA JUNIOR
ipen.autorISOLDA COSTA
ipen.autorMARA CRISTINA LOPES DE OLIVEIRA
ipen.codigoautor227
ipen.codigoautor429
ipen.codigoautor2257
ipen.contributor.ipenauthorRUBENS NUNES DE FARIA JUNIOR
ipen.contributor.ipenauthorISOLDA COSTA
ipen.contributor.ipenauthorMARA CRISTINA LOPES DE OLIVEIRA
ipen.date.recebimento04-03pt_BR
ipen.event.datapadronizada2003pt_BR
ipen.identifier.ipendoc09476pt_BR
ipen.notas.internasProceedingspt_BR
ipen.type.genreArtigo
relation.isAuthorOfPublication20cb7788-3957-4550-9e5c-cf7f5261eec4
relation.isAuthorOfPublication952cc9fe-41a5-443f-b21a-316edc344ec8
relation.isAuthorOfPublication54240b1d-855c-4eec-b344-a35c57ce4758
relation.isAuthorOfPublication.latestForDiscovery952cc9fe-41a5-443f-b21a-316edc344ec8
sigepi.autor.atividadeCOSTA, I.:429:32:Spt_BR
sigepi.autor.atividadeOLIVEIRA, M.C.L.:2257:-1:Npt_BR
sigepi.autor.atividadeFARIA JUNIOR, R.N.:227:32:Npt_BR
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