Prediction of Bainite Intervened in Ferrite-Pearlite Forging Steel I. Modeling

The successive ferrite ( ) + pearlite (P) transformations from austenite ( ) were modeled to predict the presence of bainite in as-forged medium-carbon manganese steels. The kinetics of diffusional transformations were calculated based on classical nucleation and growth theory coupled with CALPHAD m...

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Autores: Tanaka, Kouji, Yasuhiro, Yogo, Masashi, Hara, Nakanishi, Koukichi, Capdevila, Carlos
Tipo de recurso: artículo
Fecha de publicación:2009
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/74332
Acceso en línea:http://hdl.handle.net/10261/74332
Access Level:acceso abierto
Palabra clave:phase transformations
kinetic modeling
medium-carbon manganese steel
continuous-cooling
Multicomponent thermodynamics
proeutectoid ferrite
pearlite
Bainite
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repository_id_str
spelling Prediction of Bainite Intervened in Ferrite-Pearlite Forging Steel I. ModelingTanaka, KoujiYasuhiro, YogoMasashi, HaraNakanishi, KoukichiCapdevila, Carlosphase transformationskinetic modelingmedium-carbon manganese steelcontinuous-coolingMulticomponent thermodynamicsproeutectoid ferriteproeutectoid ferritepearliteBainiteThe successive ferrite ( ) + pearlite (P) transformations from austenite ( ) were modeled to predict the presence of bainite in as-forged medium-carbon manganese steels. The kinetics of diffusional transformations were calculated based on classical nucleation and growth theory coupled with CALPHAD multi-component thermodynamics. The description of the growth rate of proeutectoid- includes a time dependence due to the carbon enrichment in the remaining . The / interface was assumed to be in negligible-partitioned local equilibrium (NPLE). The kinetics calculation of P nucleating on the surface was integrated into the model. Given the transformation temperature range in continuous cooling, the growth rate of P was also expressed in the NPLE constraint for /cementite. The concentration of untransformed ( U) can be monitored and should be dependent on the extent of the preceding transformations. Thus, the energies available for the nucleation and diffusionless growth of bainitic- were evaluated from the thermodynamics of the U single-phase system, which is proposed as a method to predict the inclusion of bainite in the final þ P microstructurefinancial support of Japan Science and Technology Agency (JST)Peer reviewedJapan Institute of Metals201320132009info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/74332reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/doi:10.2320/matertrans.MRA2008331info:eu-repo/semantics/openAccessoai:digital.csic.es:10261/743322026-05-22T06:33:51Z
dc.title.none.fl_str_mv Prediction of Bainite Intervened in Ferrite-Pearlite Forging Steel I. Modeling
title Prediction of Bainite Intervened in Ferrite-Pearlite Forging Steel I. Modeling
spellingShingle Prediction of Bainite Intervened in Ferrite-Pearlite Forging Steel I. Modeling
Tanaka, Kouji
phase transformations
kinetic modeling
medium-carbon manganese steel
continuous-cooling
Multicomponent thermodynamics
proeutectoid ferrite
proeutectoid ferrite
pearlite
Bainite
title_short Prediction of Bainite Intervened in Ferrite-Pearlite Forging Steel I. Modeling
title_full Prediction of Bainite Intervened in Ferrite-Pearlite Forging Steel I. Modeling
title_fullStr Prediction of Bainite Intervened in Ferrite-Pearlite Forging Steel I. Modeling
title_full_unstemmed Prediction of Bainite Intervened in Ferrite-Pearlite Forging Steel I. Modeling
title_sort Prediction of Bainite Intervened in Ferrite-Pearlite Forging Steel I. Modeling
dc.creator.none.fl_str_mv Tanaka, Kouji
Yasuhiro, Yogo
Masashi, Hara
Nakanishi, Koukichi
Capdevila, Carlos
author Tanaka, Kouji
author_facet Tanaka, Kouji
Yasuhiro, Yogo
Masashi, Hara
Nakanishi, Koukichi
Capdevila, Carlos
author_role author
author2 Yasuhiro, Yogo
Masashi, Hara
Nakanishi, Koukichi
Capdevila, Carlos
author2_role author
author
author
author
dc.subject.none.fl_str_mv phase transformations
kinetic modeling
medium-carbon manganese steel
continuous-cooling
Multicomponent thermodynamics
proeutectoid ferrite
proeutectoid ferrite
pearlite
Bainite
topic phase transformations
kinetic modeling
medium-carbon manganese steel
continuous-cooling
Multicomponent thermodynamics
proeutectoid ferrite
proeutectoid ferrite
pearlite
Bainite
description The successive ferrite ( ) + pearlite (P) transformations from austenite ( ) were modeled to predict the presence of bainite in as-forged medium-carbon manganese steels. The kinetics of diffusional transformations were calculated based on classical nucleation and growth theory coupled with CALPHAD multi-component thermodynamics. The description of the growth rate of proeutectoid- includes a time dependence due to the carbon enrichment in the remaining . The / interface was assumed to be in negligible-partitioned local equilibrium (NPLE). The kinetics calculation of P nucleating on the surface was integrated into the model. Given the transformation temperature range in continuous cooling, the growth rate of P was also expressed in the NPLE constraint for /cementite. The concentration of untransformed ( U) can be monitored and should be dependent on the extent of the preceding transformations. Thus, the energies available for the nucleation and diffusionless growth of bainitic- were evaluated from the thermodynamics of the U single-phase system, which is proposed as a method to predict the inclusion of bainite in the final þ P microstructure
publishDate 2009
dc.date.none.fl_str_mv 2009
2013
2013
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/10261/74332
url http://hdl.handle.net/10261/74332
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/doi:10.2320/matertrans.MRA2008331
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Japan Institute of Metals
publisher.none.fl_str_mv Japan Institute of Metals
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
_version_ 1869415060832518144
score 15,812429

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