Study on Ferrite Intragranular Nucleation in a V-Microalloyed Steel

The intragranular nucleation of ferrite has been studied in a V-microalloyed steel (C=0.102; Mn=1.479; V=0.140; N=0.016, %wt). By means of hot torsion tests, recrystallizationprecipitation-time-temperature (RPTT) diagrams have been drawn which show the precipitation kinetics and the recrystallizatio...

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Detalhes bibliográficos
Autores: Medina, Sebastián F., Gómez, Manuel, Chaves, J. I., Gómez, P. P., Adeva, Paloma
Formato: artículo
Fecha de publicación:2005
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/56312
Acesso em linha:http://hdl.handle.net/10261/56312
Access Level:acceso abierto
Palavra-chave:Ferrite Intragranular nucleation
Grain Size
RPTT Diagram
VN-Particles
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spelling Study on Ferrite Intragranular Nucleation in a V-Microalloyed SteelMedina, Sebastián F.Gómez, ManuelChaves, J. I.Gómez, P. P.Adeva, PalomaFerrite Intragranular nucleationGrain SizeRPTT DiagramVN-ParticlesThe intragranular nucleation of ferrite has been studied in a V-microalloyed steel (C=0.102; Mn=1.479; V=0.140; N=0.016, %wt). By means of hot torsion tests, recrystallizationprecipitation-time-temperature (RPTT) diagrams have been drawn which show the precipitation kinetics and the recrystallization-precipitation interaction at any temperature. RPTT diagrams were determined at two strains, 0.20 and 0.35 respectively. Deformation tests were carried out at 890ºC and different holding times, corresponding to moments before the start of precipitation, during precipitation and after precipitation had ended, respectively. In order to relate the precipitation state with the intragranular nucleation, the strengthening of austenite was measured taking into account the non-recrystallized austenite fraction prior to the phase transformation. In this way, the possibility of V-nitrides acting as nucleation sites was evaluated by comparison of ferrite grain size versus holding time. Thus it was found that the precipitate size and precipitated volume are influencing the intragranular nucleation, although this is not a strong influence.Peer reviewedTrans Tech Publications201220122005info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/56312reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.4028/www.scientific.net/MSF.500-501.371info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/563122026-05-22T06:33:51Z
dc.title.none.fl_str_mv Study on Ferrite Intragranular Nucleation in a V-Microalloyed Steel
title Study on Ferrite Intragranular Nucleation in a V-Microalloyed Steel
spellingShingle Study on Ferrite Intragranular Nucleation in a V-Microalloyed Steel
Medina, Sebastián F.
Ferrite Intragranular nucleation
Grain Size
RPTT Diagram
VN-Particles
title_short Study on Ferrite Intragranular Nucleation in a V-Microalloyed Steel
title_full Study on Ferrite Intragranular Nucleation in a V-Microalloyed Steel
title_fullStr Study on Ferrite Intragranular Nucleation in a V-Microalloyed Steel
title_full_unstemmed Study on Ferrite Intragranular Nucleation in a V-Microalloyed Steel
title_sort Study on Ferrite Intragranular Nucleation in a V-Microalloyed Steel
dc.creator.none.fl_str_mv Medina, Sebastián F.
Gómez, Manuel
Chaves, J. I.
Gómez, P. P.
Adeva, Paloma
author Medina, Sebastián F.
author_facet Medina, Sebastián F.
Gómez, Manuel
Chaves, J. I.
Gómez, P. P.
Adeva, Paloma
author_role author
author2 Gómez, Manuel
Chaves, J. I.
Gómez, P. P.
Adeva, Paloma
author2_role author
author
author
author
dc.subject.none.fl_str_mv Ferrite Intragranular nucleation
Grain Size
RPTT Diagram
VN-Particles
topic Ferrite Intragranular nucleation
Grain Size
RPTT Diagram
VN-Particles
description The intragranular nucleation of ferrite has been studied in a V-microalloyed steel (C=0.102; Mn=1.479; V=0.140; N=0.016, %wt). By means of hot torsion tests, recrystallizationprecipitation-time-temperature (RPTT) diagrams have been drawn which show the precipitation kinetics and the recrystallization-precipitation interaction at any temperature. RPTT diagrams were determined at two strains, 0.20 and 0.35 respectively. Deformation tests were carried out at 890ºC and different holding times, corresponding to moments before the start of precipitation, during precipitation and after precipitation had ended, respectively. In order to relate the precipitation state with the intragranular nucleation, the strengthening of austenite was measured taking into account the non-recrystallized austenite fraction prior to the phase transformation. In this way, the possibility of V-nitrides acting as nucleation sites was evaluated by comparison of ferrite grain size versus holding time. Thus it was found that the precipitate size and precipitated volume are influencing the intragranular nucleation, although this is not a strong influence.
publishDate 2005
dc.date.none.fl_str_mv 2005
2012
2012
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/56312
url http://hdl.handle.net/10261/56312
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.4028/www.scientific.net/MSF.500-501.371
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Trans Tech Publications
publisher.none.fl_str_mv Trans Tech Publications
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,81155

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