Nucleation and growth of graphite in eutectic spheroidal cast iron: modeling and testing

Autores
Carazo, Fernando; Dardati, Patricia; Celentano, Diego; Godoy, Luis
Año de publicación
2016
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A new model of graphite growth during the continuous cooling of eutectic spheroidal cast iron is presented in this paper. The model considers the nucleation and growth of graphite from pouring to room temperature. The microstructural model of solidification accounts for the eutectic as divorced and graphite growth rate as a function of carbon gradient at the liquid in contact with the graphite. In the solid state, the microstructural model takes into account three stages for graphite growth, namely (1) from the end of solidification to the upper bound of intercritical stable eutectoid, (2) during the intercritical stable eutectoid, and (3) from the lower bound of intercritical stable eutectoid to room temperature. The micro- and macrostructural models are coupled using a sequential multiscale approach. Numerical results for graphite fraction and size distribution are compared with experimental results obtained from cylindrical cup, in which the graphite volumetric fraction and size distribution were obtained using the Schwartz–Saltykov approach. The agreements between the experimental and numerical results for the fraction of graphite and the size distribution of spheroids reveal the importance of numerical models in the prediction of the main aspects of graphite in spheroidal cast iron.
Fil: Carozo, Fernando. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Departamentop de Ingeniería Mecánica; Argentina.
Fil: Patricia, Dardati. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Departamentop de Ingeniería Mecánica; Argentina.
Fil: Celentano, Diego. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Departamentop de Ingeniería Mecánica; Argentina.
Fil: Godoy, Luis. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Departamentop de Ingeniería Mecánica; Argentina.
Peer Reviewed
Materia
graphite growth
eutectic spheroidal
solidification
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:20.500.12272/14594
Acceder
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oai_identifier_str oai:ria.utn.edu.ar:20.500.12272/14594
network_acronym_str RIAUTN
repository_id_str a
network_name_str Repositorio Institucional Abierto (UTN)
spelling Nucleation and growth of graphite in eutectic spheroidal cast iron: modeling and testingCarazo, FernandoDardati, PatriciaCelentano, DiegoGodoy, Luisgraphite growtheutectic spheroidalsolidificationA new model of graphite growth during the continuous cooling of eutectic spheroidal cast iron is presented in this paper. The model considers the nucleation and growth of graphite from pouring to room temperature. The microstructural model of solidification accounts for the eutectic as divorced and graphite growth rate as a function of carbon gradient at the liquid in contact with the graphite. In the solid state, the microstructural model takes into account three stages for graphite growth, namely (1) from the end of solidification to the upper bound of intercritical stable eutectoid, (2) during the intercritical stable eutectoid, and (3) from the lower bound of intercritical stable eutectoid to room temperature. The micro- and macrostructural models are coupled using a sequential multiscale approach. Numerical results for graphite fraction and size distribution are compared with experimental results obtained from cylindrical cup, in which the graphite volumetric fraction and size distribution were obtained using the Schwartz–Saltykov approach. The agreements between the experimental and numerical results for the fraction of graphite and the size distribution of spheroids reveal the importance of numerical models in the prediction of the main aspects of graphite in spheroidal cast iron.Fil: Carozo, Fernando. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Departamentop de Ingeniería Mecánica; Argentina.Fil: Patricia, Dardati. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Departamentop de Ingeniería Mecánica; Argentina.Fil: Celentano, Diego. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Departamentop de Ingeniería Mecánica; Argentina.Fil: Godoy, Luis. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Departamentop de Ingeniería Mecánica; Argentina.Peer ReviewedSpringer2026-02-25T19:50:19Z2016info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articulopdfapplication/pdfMetallurgical and Materials Transactions1073-5623https://hdl.handle.net/20.500.12272/1459410.1007/s11661-016-3430-xenginfo:eu-repo/semantics/openAccessAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/Patricia Dardatireponame:Repositorio Institucional Abierto (UTN)instname:Universidad Tecnológica Nacional2026-09-24T12:46:18Zoai:ria.utn.edu.ar:20.500.12272/14594instacron: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 12:46:19.19Repositorio Institucional Abierto (UTN) - Universidad Tecnológica Nacionalfalse
dc.title.none.fl_str_mv Nucleation and growth of graphite in eutectic spheroidal cast iron: modeling and testing
title Nucleation and growth of graphite in eutectic spheroidal cast iron: modeling and testing
spellingShingle Nucleation and growth of graphite in eutectic spheroidal cast iron: modeling and testing
Carazo, Fernando
graphite growth
eutectic spheroidal
solidification
title_short Nucleation and growth of graphite in eutectic spheroidal cast iron: modeling and testing
title_full Nucleation and growth of graphite in eutectic spheroidal cast iron: modeling and testing
title_fullStr Nucleation and growth of graphite in eutectic spheroidal cast iron: modeling and testing
title_full_unstemmed Nucleation and growth of graphite in eutectic spheroidal cast iron: modeling and testing
title_sort Nucleation and growth of graphite in eutectic spheroidal cast iron: modeling and testing
dc.creator.none.fl_str_mv Carazo, Fernando
Dardati, Patricia
Celentano, Diego
Godoy, Luis
author Carazo, Fernando
author_facet Carazo, Fernando
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 graphite growth
eutectic spheroidal
solidification
topic graphite growth
eutectic spheroidal
solidification
dc.description.none.fl_txt_mv A new model of graphite growth during the continuous cooling of eutectic spheroidal cast iron is presented in this paper. The model considers the nucleation and growth of graphite from pouring to room temperature. The microstructural model of solidification accounts for the eutectic as divorced and graphite growth rate as a function of carbon gradient at the liquid in contact with the graphite. In the solid state, the microstructural model takes into account three stages for graphite growth, namely (1) from the end of solidification to the upper bound of intercritical stable eutectoid, (2) during the intercritical stable eutectoid, and (3) from the lower bound of intercritical stable eutectoid to room temperature. The micro- and macrostructural models are coupled using a sequential multiscale approach. Numerical results for graphite fraction and size distribution are compared with experimental results obtained from cylindrical cup, in which the graphite volumetric fraction and size distribution were obtained using the Schwartz–Saltykov approach. The agreements between the experimental and numerical results for the fraction of graphite and the size distribution of spheroids reveal the importance of numerical models in the prediction of the main aspects of graphite in spheroidal cast iron.
Fil: Carozo, Fernando. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Departamentop de Ingeniería Mecánica; Argentina.
Fil: Patricia, Dardati. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Departamentop de Ingeniería Mecánica; Argentina.
Fil: Celentano, Diego. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Departamentop de Ingeniería Mecánica; Argentina.
Fil: Godoy, Luis. Universidad Tecnológica Nacional. Facultad Regional Córdoba. Departamentop de Ingeniería Mecánica; Argentina.
Peer Reviewed
description A new model of graphite growth during the continuous cooling of eutectic spheroidal cast iron is presented in this paper. The model considers the nucleation and growth of graphite from pouring to room temperature. The microstructural model of solidification accounts for the eutectic as divorced and graphite growth rate as a function of carbon gradient at the liquid in contact with the graphite. In the solid state, the microstructural model takes into account three stages for graphite growth, namely (1) from the end of solidification to the upper bound of intercritical stable eutectoid, (2) during the intercritical stable eutectoid, and (3) from the lower bound of intercritical stable eutectoid to room temperature. The micro- and macrostructural models are coupled using a sequential multiscale approach. Numerical results for graphite fraction and size distribution are compared with experimental results obtained from cylindrical cup, in which the graphite volumetric fraction and size distribution were obtained using the Schwartz–Saltykov approach. The agreements between the experimental and numerical results for the fraction of graphite and the size distribution of spheroids reveal the importance of numerical models in the prediction of the main aspects of graphite in spheroidal cast iron.
publishDate 2016
dc.date.none.fl_str_mv 2016
2026-02-25T19:50:19Z
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
1073-5623
https://hdl.handle.net/20.500.12272/14594
10.1007/s11661-016-3430-x
identifier_str_mv Metallurgical and Materials Transactions
1073-5623
10.1007/s11661-016-3430-x
url https://hdl.handle.net/20.500.12272/14594
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 Springer
publisher.none.fl_str_mv Springer
dc.source.none.fl_str_mv 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
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score 13.265058

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