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
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/72874
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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 Técnicas2025-09-29T09:51:58Zoai: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:34982025-09-29 09:51:58.496CONICET 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 |
_version_ |
1844613595796602880 |
score |
13.070432 |