A microscale model for ausferritic transformation of austempered ductile irons

Autores
Boccardo, Adrián; Dardati, Patricia; Celentano, Diego; Godoy, Luis
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
This paper presents a new metallurgical model for the ausferritic transformation of ductile cast iron. The model allows predicting the evolution of phases in terms of the chemical composition, austenitization austempering temperatures, graphite nodule count, and distribution of graphite nodule size. The ferrite evolution is predicted according to the displacive growth mechanism. A representative volume element is employed at the microscale to consider the phase distributions, the inhomogeneous austenite carbon content, and nucleation of ferrite subunits at the graphite nodule surface and at the tips of existing ferrite subunits. The performance of the model is evaluated comparison with experimental results. The results indicate that the increment of the ausferritic transformation rate, which is caused by increments of austempering temperature and graphite nodule count, is adequately represented by this model.
Fil: Boccardo, Adrián. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Departamento de ingeniería Mecánica; Argentina.
Fil: Dardati, Patricia. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Departamento de ingeniería Mecánica; Argentina.
Fil: Celentano, Diego. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Departamento de ingeniería Mecánica. Departamento Metalúrgica; Argentina.
Fil: Godoy, Luis. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina.
Peer Reviewed
Fuente
METALLURGICAL AND MATERIALS TRANSACTIONS A 16 (1–3),287–92. (2017)
Materia
Ductile cast iron
austenitic transformation
Phase distribution
Nivel de accesibilidad
acceso abierto
Condiciones de uso
Attribution-NonCommercial-NoDerivatives 4.0 International
Repositorio
Repositorio Institucional Abierto (UTN)
Institución
Universidad Tecnológica Nacional
OAI Identificador
oai:ria.utn.edu.ar:20.500.12272/14689
Acceder
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oai_identifier_str oai:ria.utn.edu.ar:20.500.12272/14689
network_acronym_str RIAUTN
repository_id_str a
network_name_str Repositorio Institucional Abierto (UTN)
spelling A microscale model for ausferritic transformation of austempered ductile ironsBoccardo, AdriánDardati, PatriciaCelentano, DiegoGodoy, LuisDuctile cast ironaustenitic transformationPhase distributionThis paper presents a new metallurgical model for the ausferritic transformation of ductile cast iron. The model allows predicting the evolution of phases in terms of the chemical composition, austenitization austempering temperatures, graphite nodule count, and distribution of graphite nodule size. The ferrite evolution is predicted according to the displacive growth mechanism. A representative volume element is employed at the microscale to consider the phase distributions, the inhomogeneous austenite carbon content, and nucleation of ferrite subunits at the graphite nodule surface and at the tips of existing ferrite subunits. The performance of the model is evaluated comparison with experimental results. The results indicate that the increment of the ausferritic transformation rate, which is caused by increments of austempering temperature and graphite nodule count, is adequately represented by this model.Fil: Boccardo, Adrián. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Departamento de ingeniería Mecánica; Argentina.Fil: Dardati, Patricia. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Departamento de ingeniería Mecánica; Argentina.Fil: Celentano, Diego. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Departamento de ingeniería Mecánica. Departamento Metalúrgica; Argentina.Fil: Godoy, Luis. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina.Peer ReviewedThe Minerals, Metals & Materials Society and ASM International2026-03-06T20:09:00Z2017info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articulopdfapplication/pdfMETALLURGICAL AND MATERIALS TRANSACTIONS A VOLUME 48A, JANUARY 2017—1https://hdl.handle.net/20.500.12272/1468910.1007/s11661-016-3816-9METALLURGICAL AND MATERIALS TRANSACTIONS A 16 (1–3),287–92. (2017)reponame:Repositorio Institucional Abierto (UTN)instname:Universidad Tecnológica Nacionalenginfo:eu-repo/semantics/openAccessAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/Patricia Dardati2026-09-24T12:47:49Zoai:ria.utn.edu.ar:20.500.12272/14689instacron:UTNInstitucionalhttp://ria.utn.edu.ar/Universidad públicaNo correspondehttp://ria.utn.edu.ar/oaigestionria@rec.utn.edu.ar; fsuarez@rec.utn.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:a2026-09-24 12:47:51.36Repositorio Institucional Abierto (UTN) - Universidad Tecnológica Nacionalfalse
dc.title.none.fl_str_mv A microscale model for ausferritic transformation of austempered ductile irons
title A microscale model for ausferritic transformation of austempered ductile irons
spellingShingle A microscale model for ausferritic transformation of austempered ductile irons
Boccardo, Adrián
Ductile cast iron
austenitic transformation
Phase distribution
title_short A microscale model for ausferritic transformation of austempered ductile irons
title_full A microscale model for ausferritic transformation of austempered ductile irons
title_fullStr A microscale model for ausferritic transformation of austempered ductile irons
title_full_unstemmed A microscale model for ausferritic transformation of austempered ductile irons
title_sort A microscale model for ausferritic transformation of austempered ductile irons
dc.creator.none.fl_str_mv Boccardo, Adrián
Dardati, Patricia
Celentano, Diego
Godoy, Luis
author Boccardo, Adrián
author_facet Boccardo, Adrián
Dardati, Patricia
Celentano, Diego
Godoy, Luis
author_role author
author2 Dardati, Patricia
Celentano, Diego
Godoy, Luis
author2_role author
author
author
dc.subject.none.fl_str_mv Ductile cast iron
austenitic transformation
Phase distribution
topic Ductile cast iron
austenitic transformation
Phase distribution
dc.description.none.fl_txt_mv This paper presents a new metallurgical model for the ausferritic transformation of ductile cast iron. The model allows predicting the evolution of phases in terms of the chemical composition, austenitization austempering temperatures, graphite nodule count, and distribution of graphite nodule size. The ferrite evolution is predicted according to the displacive growth mechanism. A representative volume element is employed at the microscale to consider the phase distributions, the inhomogeneous austenite carbon content, and nucleation of ferrite subunits at the graphite nodule surface and at the tips of existing ferrite subunits. The performance of the model is evaluated comparison with experimental results. The results indicate that the increment of the ausferritic transformation rate, which is caused by increments of austempering temperature and graphite nodule count, is adequately represented by this model.
Fil: Boccardo, Adrián. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Departamento de ingeniería Mecánica; Argentina.
Fil: Dardati, Patricia. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Departamento de ingeniería Mecánica; Argentina.
Fil: Celentano, Diego. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Departamento de ingeniería Mecánica. Departamento Metalúrgica; Argentina.
Fil: Godoy, Luis. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas, Físicas y Naturales; Argentina.
Peer Reviewed
description This paper presents a new metallurgical model for the ausferritic transformation of ductile cast iron. The model allows predicting the evolution of phases in terms of the chemical composition, austenitization austempering temperatures, graphite nodule count, and distribution of graphite nodule size. The ferrite evolution is predicted according to the displacive growth mechanism. A representative volume element is employed at the microscale to consider the phase distributions, the inhomogeneous austenite carbon content, and nucleation of ferrite subunits at the graphite nodule surface and at the tips of existing ferrite subunits. The performance of the model is evaluated comparison with experimental results. The results indicate that the increment of the ausferritic transformation rate, which is caused by increments of austempering temperature and graphite nodule count, is adequately represented by this model.
publishDate 2017
dc.date.none.fl_str_mv 2017
2026-03-06T20:09:00Z
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv METALLURGICAL AND MATERIALS TRANSACTIONS A VOLUME 48A, JANUARY 2017—1
https://hdl.handle.net/20.500.12272/14689
10.1007/s11661-016-3816-9
identifier_str_mv METALLURGICAL AND MATERIALS TRANSACTIONS A VOLUME 48A, JANUARY 2017—1
10.1007/s11661-016-3816-9
url https://hdl.handle.net/20.500.12272/14689
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
Patricia Dardati
eu_rights_str_mv openAccess
rights_invalid_str_mv Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
Patricia Dardati
dc.format.none.fl_str_mv pdf
application/pdf
dc.publisher.none.fl_str_mv The Minerals, Metals & Materials Society and ASM International
publisher.none.fl_str_mv The Minerals, Metals & Materials Society and ASM International
dc.source.none.fl_str_mv METALLURGICAL AND MATERIALS TRANSACTIONS A 16 (1–3),287–92. (2017)
reponame:Repositorio Institucional Abierto (UTN)
instname:Universidad Tecnológica Nacional
reponame_str Repositorio Institucional Abierto (UTN)
collection Repositorio Institucional Abierto (UTN)
instname_str Universidad Tecnológica Nacional
repository.name.fl_str_mv Repositorio Institucional Abierto (UTN) - Universidad Tecnológica Nacional
repository.mail.fl_str_mv gestionria@rec.utn.edu.ar; fsuarez@rec.utn.edu.ar
_version_ 1877230949001854976
score 13.24418

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