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: Materials research (São Carlos. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392018000100104
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 Kinetics of Magnetic Ageing of 2%Si Non-oriented Grain Electrical Steelnon-oriented electrical steelmagnetic ageing indexVickers hardnesssimulationThe 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.ABM, ABC, ABPol2018-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392018000100104Materials Research v.21 n.1 2018reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/1980-5373-mr-2017-0575info:eu-repo/semantics/openAccessOliveira Júnior,José Rogério deMonteiro,Renata AparecidaPaolinelli,Sebastião da CostaCota,André Barroseng2018-05-11T00:00:00Zoai:scielo:S1516-14392018000100104Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2018-05-11T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.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
non-oriented electrical steel
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 non-oriented electrical steel
magnetic ageing index
Vickers hardness
simulation
topic non-oriented electrical steel
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.none.fl_str_mv 2018-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392018000100104
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392018000100104
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1980-5373-mr-2017-0575
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv ABM, ABC, ABPol
publisher.none.fl_str_mv ABM, ABC, ABPol
dc.source.none.fl_str_mv Materials Research v.21 n.1 2018
reponame:Materials research (São Carlos. Online)
instname:Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
instname_str Universidade Federal de São Carlos (UFSCAR)
instacron_str ABM ABC ABPOL
institution ABM ABC ABPOL
reponame_str Materials research (São Carlos. Online)
collection Materials research (São Carlos. Online)
repository.name.fl_str_mv Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)
repository.mail.fl_str_mv dedz@power.ufscar.br
_version_ 1754212672106135552

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