Vacancy assisted solute transport mechanisms responsible for the solute atom agglomeration during the early stages of aging in Al-Cu-based alloys
- Autores
- Quiroga, Matías Abel Oscar; Macchi, Carlos Eugenio; Somoza, Alberto Horacio
- Año de publicación
- 2022
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- An approach using combined results, obtained by different experimental variants of positron annihilation spectroscopy and from kinetic Monte Carlo simulations, made it possible to determine the fundamental mechanisms by which vacancies assist solute atoms to form clusters during the earliest stages of precipitation kinetics in age-hardenable Al-Cu and Al-Cu-Mg alloys. The investigations were performed on the conventional precipitation-hardening system Al-1.74Cu (at. %) alloy aged at 293 and 342 K; these temperatures were chosen since they are low enough to avoid the formation of more stable nanostructures. To understand the influence of a minor alloying element on the solute clustering, the ternary Al-1.74Cu-0.35Mg (at. %) alloy was also studied. Interpreted in terms of the so-called vacancy pump model of solute aggregation, the results obtained made it possible to give a detailed and precise description concerning the role of the solute-vacancy exchanges in the solute clustering dynamics and the energetic stabilization of the formed clusters. It deserves to be pointed out that the results of our simulations for the ternary alloy indicate that, when aging proceeds, the solute atoms transported by vacancies progressively form Cu-Mg coclusters containing different amounts of nonmixed Cu or Mg solute atoms.
Fil: Quiroga, Matías Abel Oscar. Universidad Nacional del Centro de la Provincia de Buenos Aires. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires. - Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires; Argentina
Fil: Macchi, Carlos Eugenio. Universidad Nacional del Centro de la Provincia de Buenos Aires. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires. - Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires; Argentina
Fil: Somoza, Alberto Horacio. Universidad Nacional del Centro de la Provincia de Buenos Aires. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires. - Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires; Argentina - Materia
-
Al-Cu based alloys
kinetic Monte Carlo
positron annihilation spectroscopy
solute clustering - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/214976
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Vacancy assisted solute transport mechanisms responsible for the solute atom agglomeration during the early stages of aging in Al-Cu-based alloysQuiroga, Matías Abel OscarMacchi, Carlos EugenioSomoza, Alberto HoracioAl-Cu based alloyskinetic Monte Carlopositron annihilation spectroscopysolute clusteringhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1An approach using combined results, obtained by different experimental variants of positron annihilation spectroscopy and from kinetic Monte Carlo simulations, made it possible to determine the fundamental mechanisms by which vacancies assist solute atoms to form clusters during the earliest stages of precipitation kinetics in age-hardenable Al-Cu and Al-Cu-Mg alloys. The investigations were performed on the conventional precipitation-hardening system Al-1.74Cu (at. %) alloy aged at 293 and 342 K; these temperatures were chosen since they are low enough to avoid the formation of more stable nanostructures. To understand the influence of a minor alloying element on the solute clustering, the ternary Al-1.74Cu-0.35Mg (at. %) alloy was also studied. Interpreted in terms of the so-called vacancy pump model of solute aggregation, the results obtained made it possible to give a detailed and precise description concerning the role of the solute-vacancy exchanges in the solute clustering dynamics and the energetic stabilization of the formed clusters. It deserves to be pointed out that the results of our simulations for the ternary alloy indicate that, when aging proceeds, the solute atoms transported by vacancies progressively form Cu-Mg coclusters containing different amounts of nonmixed Cu or Mg solute atoms.Fil: Quiroga, Matías Abel Oscar. Universidad Nacional del Centro de la Provincia de Buenos Aires. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires. - Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires; ArgentinaFil: Macchi, Carlos Eugenio. Universidad Nacional del Centro de la Provincia de Buenos Aires. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires. - Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires; ArgentinaFil: Somoza, Alberto Horacio. Universidad Nacional del Centro de la Provincia de Buenos Aires. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires. - Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires; ArgentinaAmerican Physical Society2022-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/214976Quiroga, Matías Abel Oscar; Macchi, Carlos Eugenio; Somoza, Alberto Horacio; Vacancy assisted solute transport mechanisms responsible for the solute atom agglomeration during the early stages of aging in Al-Cu-based alloys; American Physical Society; Physical Review Materials; 6; 3; 3-2022; 1-172475-9953CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://link.aps.org/doi/10.1103/PhysRevMaterials.6.033603info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevMaterials.6.033603info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:54:37Zoai:ri.conicet.gov.ar:11336/214976instacron: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 09:54:37.353CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Vacancy assisted solute transport mechanisms responsible for the solute atom agglomeration during the early stages of aging in Al-Cu-based alloys |
title |
Vacancy assisted solute transport mechanisms responsible for the solute atom agglomeration during the early stages of aging in Al-Cu-based alloys |
spellingShingle |
Vacancy assisted solute transport mechanisms responsible for the solute atom agglomeration during the early stages of aging in Al-Cu-based alloys Quiroga, Matías Abel Oscar Al-Cu based alloys kinetic Monte Carlo positron annihilation spectroscopy solute clustering |
title_short |
Vacancy assisted solute transport mechanisms responsible for the solute atom agglomeration during the early stages of aging in Al-Cu-based alloys |
title_full |
Vacancy assisted solute transport mechanisms responsible for the solute atom agglomeration during the early stages of aging in Al-Cu-based alloys |
title_fullStr |
Vacancy assisted solute transport mechanisms responsible for the solute atom agglomeration during the early stages of aging in Al-Cu-based alloys |
title_full_unstemmed |
Vacancy assisted solute transport mechanisms responsible for the solute atom agglomeration during the early stages of aging in Al-Cu-based alloys |
title_sort |
Vacancy assisted solute transport mechanisms responsible for the solute atom agglomeration during the early stages of aging in Al-Cu-based alloys |
dc.creator.none.fl_str_mv |
Quiroga, Matías Abel Oscar Macchi, Carlos Eugenio Somoza, Alberto Horacio |
author |
Quiroga, Matías Abel Oscar |
author_facet |
Quiroga, Matías Abel Oscar Macchi, Carlos Eugenio Somoza, Alberto Horacio |
author_role |
author |
author2 |
Macchi, Carlos Eugenio Somoza, Alberto Horacio |
author2_role |
author author |
dc.subject.none.fl_str_mv |
Al-Cu based alloys kinetic Monte Carlo positron annihilation spectroscopy solute clustering |
topic |
Al-Cu based alloys kinetic Monte Carlo positron annihilation spectroscopy solute clustering |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
An approach using combined results, obtained by different experimental variants of positron annihilation spectroscopy and from kinetic Monte Carlo simulations, made it possible to determine the fundamental mechanisms by which vacancies assist solute atoms to form clusters during the earliest stages of precipitation kinetics in age-hardenable Al-Cu and Al-Cu-Mg alloys. The investigations were performed on the conventional precipitation-hardening system Al-1.74Cu (at. %) alloy aged at 293 and 342 K; these temperatures were chosen since they are low enough to avoid the formation of more stable nanostructures. To understand the influence of a minor alloying element on the solute clustering, the ternary Al-1.74Cu-0.35Mg (at. %) alloy was also studied. Interpreted in terms of the so-called vacancy pump model of solute aggregation, the results obtained made it possible to give a detailed and precise description concerning the role of the solute-vacancy exchanges in the solute clustering dynamics and the energetic stabilization of the formed clusters. It deserves to be pointed out that the results of our simulations for the ternary alloy indicate that, when aging proceeds, the solute atoms transported by vacancies progressively form Cu-Mg coclusters containing different amounts of nonmixed Cu or Mg solute atoms. Fil: Quiroga, Matías Abel Oscar. Universidad Nacional del Centro de la Provincia de Buenos Aires. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires. - Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires; Argentina Fil: Macchi, Carlos Eugenio. Universidad Nacional del Centro de la Provincia de Buenos Aires. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires. - Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires; Argentina Fil: Somoza, Alberto Horacio. Universidad Nacional del Centro de la Provincia de Buenos Aires. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires. - Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tandil. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires. - Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Centro de Investigaciones en Física e Ingeniería del Centro de la Provincia de Buenos Aires; Argentina |
description |
An approach using combined results, obtained by different experimental variants of positron annihilation spectroscopy and from kinetic Monte Carlo simulations, made it possible to determine the fundamental mechanisms by which vacancies assist solute atoms to form clusters during the earliest stages of precipitation kinetics in age-hardenable Al-Cu and Al-Cu-Mg alloys. The investigations were performed on the conventional precipitation-hardening system Al-1.74Cu (at. %) alloy aged at 293 and 342 K; these temperatures were chosen since they are low enough to avoid the formation of more stable nanostructures. To understand the influence of a minor alloying element on the solute clustering, the ternary Al-1.74Cu-0.35Mg (at. %) alloy was also studied. Interpreted in terms of the so-called vacancy pump model of solute aggregation, the results obtained made it possible to give a detailed and precise description concerning the role of the solute-vacancy exchanges in the solute clustering dynamics and the energetic stabilization of the formed clusters. It deserves to be pointed out that the results of our simulations for the ternary alloy indicate that, when aging proceeds, the solute atoms transported by vacancies progressively form Cu-Mg coclusters containing different amounts of nonmixed Cu or Mg solute atoms. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-03 |
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/11336/214976 Quiroga, Matías Abel Oscar; Macchi, Carlos Eugenio; Somoza, Alberto Horacio; Vacancy assisted solute transport mechanisms responsible for the solute atom agglomeration during the early stages of aging in Al-Cu-based alloys; American Physical Society; Physical Review Materials; 6; 3; 3-2022; 1-17 2475-9953 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/214976 |
identifier_str_mv |
Quiroga, Matías Abel Oscar; Macchi, Carlos Eugenio; Somoza, Alberto Horacio; Vacancy assisted solute transport mechanisms responsible for the solute atom agglomeration during the early stages of aging in Al-Cu-based alloys; American Physical Society; Physical Review Materials; 6; 3; 3-2022; 1-17 2475-9953 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://link.aps.org/doi/10.1103/PhysRevMaterials.6.033603 info:eu-repo/semantics/altIdentifier/doi/10.1103/PhysRevMaterials.6.033603 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf application/pdf application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
American Physical Society |
publisher.none.fl_str_mv |
American Physical Society |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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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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1844613657830359040 |
score |
13.070432 |