Study of the austempering transformation kinetics in compacted graphite cast irons

Autores
Gregorutti, Ricardo Walter; Laneri, Karina Fabiana; Desimoni, Judith; Mercader, Roberto Carlos
Año de publicación
2004
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In this work, the phases involved in the transformation austenite→ferrite+high-carbon austenite in cast irons were assessed by means of Mossbauer spectroscopy and hardness measurements for samples austempered at five different temperatures between 573 and 673 K with two Mn contents. The C content in the high-carbon austenite was found to have a dependence of t0.40±0.05 on the austempering time t, which evidences that diffusion of carbon has taken place. The kinetic parameter k determined using the Johnson-Mehl-Avrami equation has a maximum of 3.9×10−3 (s−1) at ≈623 K and corroborates that Mn slows the transformation rate.
Laboratorio de Entrenamiento Multidisciplinario para la Investigación Tecnológica
Facultad de Ciencias Exactas
Materia
Física
Ciencias Exactas
austenite
Mössbauer spectroscopy
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/134797
Acceder
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oai_identifier_str oai:sedici.unlp.edu.ar:10915/134797
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Study of the austempering transformation kinetics in compacted graphite cast ironsGregorutti, Ricardo WalterLaneri, Karina FabianaDesimoni, JudithMercader, Roberto CarlosFísicaCiencias ExactasausteniteMössbauer spectroscopyIn this work, the phases involved in the transformation austenite→ferrite+high-carbon austenite in cast irons were assessed by means of Mossbauer spectroscopy and hardness measurements for samples austempered at five different temperatures between 573 and 673 K with two Mn contents. The C content in the high-carbon austenite was found to have a dependence of t0.40±0.05 on the austempering time t, which evidences that diffusion of carbon has taken place. The kinetic parameter k determined using the Johnson-Mehl-Avrami equation has a maximum of 3.9×10−3 (s−1) at ≈623 K and corroborates that Mn slows the transformation rate.Laboratorio de Entrenamiento Multidisciplinario para la Investigación TecnológicaFacultad de Ciencias Exactas2004info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf103-110http://sedici.unlp.edu.ar/handle/10915/134797enginfo:eu-repo/semantics/altIdentifier/issn/1073-5623info:eu-repo/semantics/altIdentifier/issn/1543-1940info:eu-repo/semantics/altIdentifier/doi/10.1007/s11661-004-0113-9info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-15T11:23:42Zoai:sedici.unlp.edu.ar:10915/134797Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-15 11:23:42.992SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Study of the austempering transformation kinetics in compacted graphite cast irons
title Study of the austempering transformation kinetics in compacted graphite cast irons
spellingShingle Study of the austempering transformation kinetics in compacted graphite cast irons
Gregorutti, Ricardo Walter
Física
Ciencias Exactas
austenite
Mössbauer spectroscopy
title_short Study of the austempering transformation kinetics in compacted graphite cast irons
title_full Study of the austempering transformation kinetics in compacted graphite cast irons
title_fullStr Study of the austempering transformation kinetics in compacted graphite cast irons
title_full_unstemmed Study of the austempering transformation kinetics in compacted graphite cast irons
title_sort Study of the austempering transformation kinetics in compacted graphite cast irons
dc.creator.none.fl_str_mv Gregorutti, Ricardo Walter
Laneri, Karina Fabiana
Desimoni, Judith
Mercader, Roberto Carlos
author Gregorutti, Ricardo Walter
author_facet Gregorutti, Ricardo Walter
Laneri, Karina Fabiana
Desimoni, Judith
Mercader, Roberto Carlos
author_role author
author2 Laneri, Karina Fabiana
Desimoni, Judith
Mercader, Roberto Carlos
author2_role author
author
author
dc.subject.none.fl_str_mv Física
Ciencias Exactas
austenite
Mössbauer spectroscopy
topic Física
Ciencias Exactas
austenite
Mössbauer spectroscopy
dc.description.none.fl_txt_mv In this work, the phases involved in the transformation austenite→ferrite+high-carbon austenite in cast irons were assessed by means of Mossbauer spectroscopy and hardness measurements for samples austempered at five different temperatures between 573 and 673 K with two Mn contents. The C content in the high-carbon austenite was found to have a dependence of t0.40±0.05 on the austempering time t, which evidences that diffusion of carbon has taken place. The kinetic parameter k determined using the Johnson-Mehl-Avrami equation has a maximum of 3.9×10−3 (s−1) at ≈623 K and corroborates that Mn slows the transformation rate.
Laboratorio de Entrenamiento Multidisciplinario para la Investigación Tecnológica
Facultad de Ciencias Exactas
description In this work, the phases involved in the transformation austenite→ferrite+high-carbon austenite in cast irons were assessed by means of Mossbauer spectroscopy and hardness measurements for samples austempered at five different temperatures between 573 and 673 K with two Mn contents. The C content in the high-carbon austenite was found to have a dependence of t0.40±0.05 on the austempering time t, which evidences that diffusion of carbon has taken place. The kinetic parameter k determined using the Johnson-Mehl-Avrami equation has a maximum of 3.9×10−3 (s−1) at ≈623 K and corroborates that Mn slows the transformation rate.
publishDate 2004
dc.date.none.fl_str_mv 2004
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/134797
url http://sedici.unlp.edu.ar/handle/10915/134797
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/1073-5623
info:eu-repo/semantics/altIdentifier/issn/1543-1940
info:eu-repo/semantics/altIdentifier/doi/10.1007/s11661-004-0113-9
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.format.none.fl_str_mv application/pdf
103-110
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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