Kinetics of magnetic ageing of 2%Si non-oriented grain electrical steel.

Detalhes bibliográficos
Autor(a) principal: Oliveira Júnior, José Rogério de
Data de Publicação: 2018
Outros Autores: Monteiro, Renata Aparecida, Paolinelli, Sebastião da Costa, Cota, André Barros
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFOP
Texto Completo: http://www.repositorio.ufop.br/handle/123456789/10452
Resumo: The effect of carbon content on the magnetic ageing index and Vickers hardness evolution on annealed samples of 2%Si non-oriented grain electrical steel was studied. Samples with 40 and 60ppm carbon content were subjected at ageing temperatures of 200 and 225ºC, respectively. During the ageing treatment, the cycle was interrupted on several time intervals in order to obtain the core loss and to determine Vickers hardness. The precipitates were characterized using scanning electron microscope (SEM). Using the software MatCalc, computer simulations of ε-carbide precipitation were performed and compared with experimental data from literature. The results for both carbon contents showed that the maximum hardness value was achieved in shorter time than that to achieve the maximum magnetic ageing, indicating that the critical size of precipitates more harmful to the magnetic properties is larger than the ones that maximize the hardness.
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spelling Oliveira Júnior, José Rogério deMonteiro, Renata AparecidaPaolinelli, Sebastião da CostaCota, André Barros2018-10-25T16:14:47Z2018-10-25T16:14:47Z2018OLIVEIRA JÚNIOR, J. R. de et al. Kinetics of magnetic ageing of 2%Si non-oriented grain electrical steel. Materials Research, v. 21, n.1, p. e20170575, out. 2018. Disponível em: <http://www.scielo.br/scielo.php?script=sci_abstract&pid=S1516-14392017005055016&lng=es&nrm=iso>. Acesso em: 16 jun. 2018.15161439http://www.repositorio.ufop.br/handle/123456789/10452The effect of carbon content on the magnetic ageing index and Vickers hardness evolution on annealed samples of 2%Si non-oriented grain electrical steel was studied. Samples with 40 and 60ppm carbon content were subjected at ageing temperatures of 200 and 225ºC, respectively. During the ageing treatment, the cycle was interrupted on several time intervals in order to obtain the core loss and to determine Vickers hardness. The precipitates were characterized using scanning electron microscope (SEM). Using the software MatCalc, computer simulations of ε-carbide precipitation were performed and compared with experimental data from literature. The results for both carbon contents showed that the maximum hardness value was achieved in shorter time than that to achieve the maximum magnetic ageing, indicating that the critical size of precipitates more harmful to the magnetic properties is larger than the ones that maximize the hardness.O periódico Materials Research dá permissão ao RI/UFOP para depositar uma cópia eletrônica dos artigos publicados por esse periódico em que ao menos um dos autores é aluno ou professor da UFOP. Contato via email em 25 out. 2013.info:eu-repo/semantics/openAccessMagnetic ageing indexVickers hardnessSimulationKinetics of magnetic ageing of 2%Si non-oriented grain electrical steel.info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleengreponame:Repositório Institucional da UFOPinstname:Universidade Federal de Ouro Preto (UFOP)instacron:UFOPLICENSElicense.txtlicense.txttext/plain; charset=utf-8924http://www.repositorio.ufop.br/bitstream/123456789/10452/2/license.txt62604f8d955274beb56c80ce1ee5dcaeMD52ORIGINALARTIGO_KineticsMagneticAgeing.pdfARTIGO_KineticsMagneticAgeing.pdfapplication/pdf1747821http://www.repositorio.ufop.br/bitstream/123456789/10452/1/ARTIGO_KineticsMagneticAgeing.pdf38e66960fb2370b4e23fae02d31a0f5bMD51123456789/104522018-10-25 12:14:47.326oai:localhost: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ório InstitucionalPUBhttp://www.repositorio.ufop.br/oai/requestrepositorio@ufop.edu.bropendoar:32332018-10-25T16:14:47Repositório Institucional da UFOP - Universidade Federal de Ouro Preto (UFOP)false
dc.title.pt_BR.fl_str_mv Kinetics of magnetic ageing of 2%Si non-oriented grain electrical steel.
title Kinetics of magnetic ageing of 2%Si non-oriented grain electrical steel.
spellingShingle Kinetics of magnetic ageing of 2%Si non-oriented grain electrical steel.
Oliveira Júnior, José Rogério de
Magnetic ageing index
Vickers hardness
Simulation
title_short Kinetics of magnetic ageing of 2%Si non-oriented grain electrical steel.
title_full Kinetics of magnetic ageing of 2%Si non-oriented grain electrical steel.
title_fullStr Kinetics of magnetic ageing of 2%Si non-oriented grain electrical steel.
title_full_unstemmed Kinetics of magnetic ageing of 2%Si non-oriented grain electrical steel.
title_sort Kinetics of magnetic ageing of 2%Si non-oriented grain electrical steel.
author Oliveira Júnior, José Rogério de
author_facet Oliveira Júnior, José Rogério de
Monteiro, Renata Aparecida
Paolinelli, Sebastião da Costa
Cota, André Barros
author_role author
author2 Monteiro, Renata Aparecida
Paolinelli, Sebastião da Costa
Cota, André Barros
author2_role author
author
author
dc.contributor.author.fl_str_mv Oliveira Júnior, José Rogério de
Monteiro, Renata Aparecida
Paolinelli, Sebastião da Costa
Cota, André Barros
dc.subject.por.fl_str_mv Magnetic ageing index
Vickers hardness
Simulation
topic Magnetic ageing index
Vickers hardness
Simulation
description The effect of carbon content on the magnetic ageing index and Vickers hardness evolution on annealed samples of 2%Si non-oriented grain electrical steel was studied. Samples with 40 and 60ppm carbon content were subjected at ageing temperatures of 200 and 225ºC, respectively. During the ageing treatment, the cycle was interrupted on several time intervals in order to obtain the core loss and to determine Vickers hardness. The precipitates were characterized using scanning electron microscope (SEM). Using the software MatCalc, computer simulations of ε-carbide precipitation were performed and compared with experimental data from literature. The results for both carbon contents showed that the maximum hardness value was achieved in shorter time than that to achieve the maximum magnetic ageing, indicating that the critical size of precipitates more harmful to the magnetic properties is larger than the ones that maximize the hardness.
publishDate 2018
dc.date.accessioned.fl_str_mv 2018-10-25T16:14:47Z
dc.date.available.fl_str_mv 2018-10-25T16:14:47Z
dc.date.issued.fl_str_mv 2018
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.citation.fl_str_mv OLIVEIRA JÚNIOR, J. R. de et al. Kinetics of magnetic ageing of 2%Si non-oriented grain electrical steel. Materials Research, v. 21, n.1, p. e20170575, out. 2018. Disponível em: <http://www.scielo.br/scielo.php?script=sci_abstract&pid=S1516-14392017005055016&lng=es&nrm=iso>. Acesso em: 16 jun. 2018.
dc.identifier.uri.fl_str_mv http://www.repositorio.ufop.br/handle/123456789/10452
dc.identifier.issn.none.fl_str_mv 15161439
identifier_str_mv OLIVEIRA JÚNIOR, J. R. de et al. Kinetics of magnetic ageing of 2%Si non-oriented grain electrical steel. Materials Research, v. 21, n.1, p. e20170575, out. 2018. Disponível em: <http://www.scielo.br/scielo.php?script=sci_abstract&pid=S1516-14392017005055016&lng=es&nrm=iso>. Acesso em: 16 jun. 2018.
15161439
url http://www.repositorio.ufop.br/handle/123456789/10452
dc.language.iso.fl_str_mv eng
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