Fcc/Hcp martensitic transformation in the Fe-Mn system: Part II. Driving force and thermodynamics of the nucleation process

Autores
Cotes, Sonia Marcela; Fernández Guillermet, Armando; Sade, Marcos
Año de publicación
2004
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
This article, which continues the series started by Cotes et al. (Metall. Mater. Trans. A , 1995, vol. 26A, p. 1957-69), presents a study of the energetics of the heterogeneous nucleation of hcp martensite in the fcc matrix of the Fe-Mn system. A major goal of the work is the exploration of the various qualitative and quantitative consequences of applying the Olson and Cohen approach (OCA) to the most reliable information on the Fe-Mn system. To this end, an extensive assessment of the quantities involved in the OCA is performed. The selected Gibbs energy and the lattice parameter descriptions for fcc and hcp are based on recent experimental studies. Explicit calculations are presented of the key quantities in the OCA, including those quantities that have not yet been measured. In particular, a probable range of values is established for the surface energy parameter σ, which plays a crucial role in the treatment of the nucleation size. On these bases, values are derived for the probable number of atomic planes ( n C) of the embryo, which, according to the OCA, is at the condition of spontaneous growth. Predictions of the Mn content upon n C are also reported. The present attempt to calculate in detail the energetics of the fcc -hcp martensitic transformation also revealed the lack of thermophysical data for Fe-Mn alloys. The need for experimental studies of various relevant quantities is emphasized.
Facultad de Ciencias Exactas
Materia
Química
heterogeneous nucleation of hcp martensite
Fe-Mn system
Fe-Mn alloys
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:10915/133106

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spelling Fcc/Hcp martensitic transformation in the Fe-Mn system: Part II. Driving force and thermodynamics of the nucleation processCotes, Sonia MarcelaFernández Guillermet, ArmandoSade, MarcosQuímicaheterogeneous nucleation of hcp martensiteFe-Mn systemFe-Mn alloysThis article, which continues the series started by Cotes <i>et al.</i> (<i>Metall. Mater. Trans. A</i> , 1995, vol. 26A, p. 1957-69), presents a study of the energetics of the heterogeneous nucleation of hcp martensite in the fcc matrix of the Fe-Mn system. A major goal of the work is the exploration of the various qualitative and quantitative consequences of applying the Olson and Cohen approach (OCA) to the most reliable information on the Fe-Mn system. To this end, an extensive assessment of the quantities involved in the OCA is performed. The selected Gibbs energy and the lattice parameter descriptions for fcc and hcp are based on recent experimental studies. Explicit calculations are presented of the key quantities in the OCA, including those quantities that have not yet been measured. In particular, a probable range of values is established for the surface energy parameter σ, which plays a crucial role in the treatment of the nucleation size. On these bases, values are derived for the probable number of atomic planes ( n <sub>C</sub>) of the embryo, which, according to the OCA, is at the condition of spontaneous growth. Predictions of the Mn content upon n <sub>C</sub> are also reported. The present attempt to calculate in detail the energetics of the fcc <sup>-</sup>hcp martensitic transformation also revealed the lack of thermophysical data for Fe-Mn alloys. The need for experimental studies of various relevant quantities is emphasized.Facultad de Ciencias Exactas2004info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf83-91http://sedici.unlp.edu.ar/handle/10915/133106enginfo:eu-repo/semantics/altIdentifier/issn/1073-5623info:eu-repo/semantics/altIdentifier/issn/1543-1940info:eu-repo/semantics/altIdentifier/doi/10.1007/s11661-004-0111-yinfo: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:UNLP2025-09-29T11:31:43Zoai:sedici.unlp.edu.ar:10915/133106Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:31:43.46SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Fcc/Hcp martensitic transformation in the Fe-Mn system: Part II. Driving force and thermodynamics of the nucleation process
title Fcc/Hcp martensitic transformation in the Fe-Mn system: Part II. Driving force and thermodynamics of the nucleation process
spellingShingle Fcc/Hcp martensitic transformation in the Fe-Mn system: Part II. Driving force and thermodynamics of the nucleation process
Cotes, Sonia Marcela
Química
heterogeneous nucleation of hcp martensite
Fe-Mn system
Fe-Mn alloys
title_short Fcc/Hcp martensitic transformation in the Fe-Mn system: Part II. Driving force and thermodynamics of the nucleation process
title_full Fcc/Hcp martensitic transformation in the Fe-Mn system: Part II. Driving force and thermodynamics of the nucleation process
title_fullStr Fcc/Hcp martensitic transformation in the Fe-Mn system: Part II. Driving force and thermodynamics of the nucleation process
title_full_unstemmed Fcc/Hcp martensitic transformation in the Fe-Mn system: Part II. Driving force and thermodynamics of the nucleation process
title_sort Fcc/Hcp martensitic transformation in the Fe-Mn system: Part II. Driving force and thermodynamics of the nucleation process
dc.creator.none.fl_str_mv Cotes, Sonia Marcela
Fernández Guillermet, Armando
Sade, Marcos
author Cotes, Sonia Marcela
author_facet Cotes, Sonia Marcela
Fernández Guillermet, Armando
Sade, Marcos
author_role author
author2 Fernández Guillermet, Armando
Sade, Marcos
author2_role author
author
dc.subject.none.fl_str_mv Química
heterogeneous nucleation of hcp martensite
Fe-Mn system
Fe-Mn alloys
topic Química
heterogeneous nucleation of hcp martensite
Fe-Mn system
Fe-Mn alloys
dc.description.none.fl_txt_mv This article, which continues the series started by Cotes <i>et al.</i> (<i>Metall. Mater. Trans. A</i> , 1995, vol. 26A, p. 1957-69), presents a study of the energetics of the heterogeneous nucleation of hcp martensite in the fcc matrix of the Fe-Mn system. A major goal of the work is the exploration of the various qualitative and quantitative consequences of applying the Olson and Cohen approach (OCA) to the most reliable information on the Fe-Mn system. To this end, an extensive assessment of the quantities involved in the OCA is performed. The selected Gibbs energy and the lattice parameter descriptions for fcc and hcp are based on recent experimental studies. Explicit calculations are presented of the key quantities in the OCA, including those quantities that have not yet been measured. In particular, a probable range of values is established for the surface energy parameter σ, which plays a crucial role in the treatment of the nucleation size. On these bases, values are derived for the probable number of atomic planes ( n <sub>C</sub>) of the embryo, which, according to the OCA, is at the condition of spontaneous growth. Predictions of the Mn content upon n <sub>C</sub> are also reported. The present attempt to calculate in detail the energetics of the fcc <sup>-</sup>hcp martensitic transformation also revealed the lack of thermophysical data for Fe-Mn alloys. The need for experimental studies of various relevant quantities is emphasized.
Facultad de Ciencias Exactas
description This article, which continues the series started by Cotes <i>et al.</i> (<i>Metall. Mater. Trans. A</i> , 1995, vol. 26A, p. 1957-69), presents a study of the energetics of the heterogeneous nucleation of hcp martensite in the fcc matrix of the Fe-Mn system. A major goal of the work is the exploration of the various qualitative and quantitative consequences of applying the Olson and Cohen approach (OCA) to the most reliable information on the Fe-Mn system. To this end, an extensive assessment of the quantities involved in the OCA is performed. The selected Gibbs energy and the lattice parameter descriptions for fcc and hcp are based on recent experimental studies. Explicit calculations are presented of the key quantities in the OCA, including those quantities that have not yet been measured. In particular, a probable range of values is established for the surface energy parameter σ, which plays a crucial role in the treatment of the nucleation size. On these bases, values are derived for the probable number of atomic planes ( n <sub>C</sub>) of the embryo, which, according to the OCA, is at the condition of spontaneous growth. Predictions of the Mn content upon n <sub>C</sub> are also reported. The present attempt to calculate in detail the energetics of the fcc <sup>-</sup>hcp martensitic transformation also revealed the lack of thermophysical data for Fe-Mn alloys. The need for experimental studies of various relevant quantities is emphasized.
publishDate 2004
dc.date.none.fl_str_mv 2004
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dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
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