Coarsening process and precipitation hardening in Fe2AlV-strengthened ferritic Fe76Al12V12 alloy

Autores
Ferreirós, Pedro Antonio; Alonso, Paula Regina; Rubiolo, Gerardo Hector
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Strengthening through a homogeneous distribution of a nano-sized second phase is a concept that is proposed to reinforce solid-solution body centered-cubic iron for high-temperature application in fossil-energy power plants. It was shown that these microstructures can be obtained in the Fe-Al-V system with L21-ordered Fe2AlV precipitates in a ferritic matrix. The effect of aging in the range 600–700 °C on the ferritic Fe76Al12V12 alloy was investigated using Vickers micro-hardness test and transmission electron microscopy. The diffusion screening coarsening theory is used to analyze the ripening kinetics. When volume fraction and mobility of the components in the ternary alloy are considered, the interfacial energy between the matrix and the precipitate was determined as (18±3)×10−3J/m2 at 700 ºC but increases strongly when the temperature decreases. A classic precipitation hardening behavior has been observed along the time for each aging treatment. At room temperature, the increment of flow stress has a peak of about 450 MPa for a precipitate radius of 10 nm. Quantitative agreement is found with strength values predicted from order strengthening theory, predicting that strength is controlled by a precipitate shearing mechanism for sizes around that of peak strengthening, and the Orowan dislocation bypass mechanism for larger sizes. The APB energy of Fe2AlV precipitate was estimated to be (27±4)×10−2J/m2.
Fil: Ferreirós, Pedro Antonio. Universidad Nacional de San Martín; Argentina. Universidad Tecnológica Nacional. Facultad Regional General Pacheco; Argentina. Comisión Nacional de Energía Atómica; Argentina
Fil: Alonso, Paula Regina. Universidad Nacional de San Martín; Argentina. Comisión Nacional de Energía Atómica; Argentina
Fil: Rubiolo, Gerardo Hector. Universidad Nacional de San Martín; Argentina. Comisión Nacional de Energía Atómica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
Age Hardening
Coarsening
Electron Microscopy
Ferrous Alloy
Hardness Measurement
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/72874
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Coarsening process and precipitation hardening in Fe2AlV-strengthened ferritic Fe76Al12V12 alloyFerreirós, Pedro AntonioAlonso, Paula ReginaRubiolo, Gerardo HectorAge HardeningCoarseningElectron MicroscopyFerrous AlloyHardness Measurementhttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2Strengthening through a homogeneous distribution of a nano-sized second phase is a concept that is proposed to reinforce solid-solution body centered-cubic iron for high-temperature application in fossil-energy power plants. It was shown that these microstructures can be obtained in the Fe-Al-V system with L21-ordered Fe2AlV precipitates in a ferritic matrix. The effect of aging in the range 600–700 °C on the ferritic Fe76Al12V12 alloy was investigated using Vickers micro-hardness test and transmission electron microscopy. The diffusion screening coarsening theory is used to analyze the ripening kinetics. When volume fraction and mobility of the components in the ternary alloy are considered, the interfacial energy between the matrix and the precipitate was determined as (18±3)×10−3J/m2 at 700 ºC but increases strongly when the temperature decreases. A classic precipitation hardening behavior has been observed along the time for each aging treatment. At room temperature, the increment of flow stress has a peak of about 450 MPa for a precipitate radius of 10 nm. Quantitative agreement is found with strength values predicted from order strengthening theory, predicting that strength is controlled by a precipitate shearing mechanism for sizes around that of peak strengthening, and the Orowan dislocation bypass mechanism for larger sizes. The APB energy of Fe2AlV precipitate was estimated to be (27±4)×10−2J/m2.Fil: Ferreirós, Pedro Antonio. Universidad Nacional de San Martín; Argentina. Universidad Tecnológica Nacional. Facultad Regional General Pacheco; Argentina. Comisión Nacional de Energía Atómica; ArgentinaFil: Alonso, Paula Regina. Universidad Nacional de San Martín; Argentina. Comisión Nacional de Energía Atómica; ArgentinaFil: Rubiolo, Gerardo Hector. Universidad Nacional de San Martín; Argentina. Comisión Nacional de Energía Atómica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaElsevier Science Sa2017-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/72874Ferreirós, Pedro Antonio; Alonso, Paula Regina; Rubiolo, Gerardo Hector; Coarsening process and precipitation hardening in Fe2AlV-strengthened ferritic Fe76Al12V12 alloy; Elsevier Science Sa; Materials Science and Engineering A: Structural Materials: Properties, Microstructure and Processing; 684; 1-2017; 394-4050921-5093CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.msea.2016.12.074info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0921509316315775info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:21:23Zoai:ri.conicet.gov.ar:11336/72874instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 11:21:24.209CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Coarsening process and precipitation hardening in Fe2AlV-strengthened ferritic Fe76Al12V12 alloy
title Coarsening process and precipitation hardening in Fe2AlV-strengthened ferritic Fe76Al12V12 alloy
spellingShingle Coarsening process and precipitation hardening in Fe2AlV-strengthened ferritic Fe76Al12V12 alloy
Ferreirós, Pedro Antonio
Age Hardening
Coarsening
Electron Microscopy
Ferrous Alloy
Hardness Measurement
title_short Coarsening process and precipitation hardening in Fe2AlV-strengthened ferritic Fe76Al12V12 alloy
title_full Coarsening process and precipitation hardening in Fe2AlV-strengthened ferritic Fe76Al12V12 alloy
title_fullStr Coarsening process and precipitation hardening in Fe2AlV-strengthened ferritic Fe76Al12V12 alloy
title_full_unstemmed Coarsening process and precipitation hardening in Fe2AlV-strengthened ferritic Fe76Al12V12 alloy
title_sort Coarsening process and precipitation hardening in Fe2AlV-strengthened ferritic Fe76Al12V12 alloy
dc.creator.none.fl_str_mv Ferreirós, Pedro Antonio
Alonso, Paula Regina
Rubiolo, Gerardo Hector
author Ferreirós, Pedro Antonio
author_facet Ferreirós, Pedro Antonio
Alonso, Paula Regina
Rubiolo, Gerardo Hector
author_role author
author2 Alonso, Paula Regina
Rubiolo, Gerardo Hector
author2_role author
author
dc.subject.none.fl_str_mv Age Hardening
Coarsening
Electron Microscopy
Ferrous Alloy
Hardness Measurement
topic Age Hardening
Coarsening
Electron Microscopy
Ferrous Alloy
Hardness Measurement
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Strengthening through a homogeneous distribution of a nano-sized second phase is a concept that is proposed to reinforce solid-solution body centered-cubic iron for high-temperature application in fossil-energy power plants. It was shown that these microstructures can be obtained in the Fe-Al-V system with L21-ordered Fe2AlV precipitates in a ferritic matrix. The effect of aging in the range 600–700 °C on the ferritic Fe76Al12V12 alloy was investigated using Vickers micro-hardness test and transmission electron microscopy. The diffusion screening coarsening theory is used to analyze the ripening kinetics. When volume fraction and mobility of the components in the ternary alloy are considered, the interfacial energy between the matrix and the precipitate was determined as (18±3)×10−3J/m2 at 700 ºC but increases strongly when the temperature decreases. A classic precipitation hardening behavior has been observed along the time for each aging treatment. At room temperature, the increment of flow stress has a peak of about 450 MPa for a precipitate radius of 10 nm. Quantitative agreement is found with strength values predicted from order strengthening theory, predicting that strength is controlled by a precipitate shearing mechanism for sizes around that of peak strengthening, and the Orowan dislocation bypass mechanism for larger sizes. The APB energy of Fe2AlV precipitate was estimated to be (27±4)×10−2J/m2.
Fil: Ferreirós, Pedro Antonio. Universidad Nacional de San Martín; Argentina. Universidad Tecnológica Nacional. Facultad Regional General Pacheco; Argentina. Comisión Nacional de Energía Atómica; Argentina
Fil: Alonso, Paula Regina. Universidad Nacional de San Martín; Argentina. Comisión Nacional de Energía Atómica; Argentina
Fil: Rubiolo, Gerardo Hector. Universidad Nacional de San Martín; Argentina. Comisión Nacional de Energía Atómica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description Strengthening through a homogeneous distribution of a nano-sized second phase is a concept that is proposed to reinforce solid-solution body centered-cubic iron for high-temperature application in fossil-energy power plants. It was shown that these microstructures can be obtained in the Fe-Al-V system with L21-ordered Fe2AlV precipitates in a ferritic matrix. The effect of aging in the range 600–700 °C on the ferritic Fe76Al12V12 alloy was investigated using Vickers micro-hardness test and transmission electron microscopy. The diffusion screening coarsening theory is used to analyze the ripening kinetics. When volume fraction and mobility of the components in the ternary alloy are considered, the interfacial energy between the matrix and the precipitate was determined as (18±3)×10−3J/m2 at 700 ºC but increases strongly when the temperature decreases. A classic precipitation hardening behavior has been observed along the time for each aging treatment. At room temperature, the increment of flow stress has a peak of about 450 MPa for a precipitate radius of 10 nm. Quantitative agreement is found with strength values predicted from order strengthening theory, predicting that strength is controlled by a precipitate shearing mechanism for sizes around that of peak strengthening, and the Orowan dislocation bypass mechanism for larger sizes. The APB energy of Fe2AlV precipitate was estimated to be (27±4)×10−2J/m2.
publishDate 2017
dc.date.none.fl_str_mv 2017-01
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 http://hdl.handle.net/11336/72874
Ferreirós, Pedro Antonio; Alonso, Paula Regina; Rubiolo, Gerardo Hector; Coarsening process and precipitation hardening in Fe2AlV-strengthened ferritic Fe76Al12V12 alloy; Elsevier Science Sa; Materials Science and Engineering A: Structural Materials: Properties, Microstructure and Processing; 684; 1-2017; 394-405
0921-5093
CONICET Digital
CONICET
url http://hdl.handle.net/11336/72874
identifier_str_mv Ferreirós, Pedro Antonio; Alonso, Paula Regina; Rubiolo, Gerardo Hector; Coarsening process and precipitation hardening in Fe2AlV-strengthened ferritic Fe76Al12V12 alloy; Elsevier Science Sa; Materials Science and Engineering A: Structural Materials: Properties, Microstructure and Processing; 684; 1-2017; 394-405
0921-5093
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.msea.2016.12.074
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0921509316315775
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science Sa
publisher.none.fl_str_mv Elsevier Science Sa
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.982451

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