Influence of Si and Ge Microalloying Additions and Plastic Deformation on Precipitation Processes in Al-Cu Based Alloys

Autores
Castro Riglos, Maria Victoria; Tolley, Alfredo Juan
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The combined effect of micro-alloying with Si and Ge and/or plastic deformationprior to ageing at 160˚C on age hardening has been studied in an Al-2 at%Cu alloy. The results obtained indicate that the hardness response is faster and the peak hardness is higher when plastic deformation and micro-alloying are applied together than performing each procedure individually. Different amounts of deformation, ranging from 0% to 30% have been utilized. An optimum deformation degree for the hardening response has been established around 8%for the Al-Cu-Si-Ge alloy. Characterization by transmission electron microscopy(TEM) shows that the peak hardness is due to a complex microstructurethat contained θ ′′ disc shaped precipitates, rod-shaped Si-Ge precipitatesand θ ′ plates that were heterogeneously nucleated on the Si-Ge particles.Pre-deformation has been found to stimulate the growth of the θ ′ platesdue to enhanced diffusion along dislocation cores. Increasing deformationreduces the influence of the Si-Ge precipitates on heterogeneous nucleation, leading to reduced peak hardness and faster over-ageing.
Fil: Castro Riglos, Maria Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comision Nacional de Energía Atómica. Gerencia de Área Investigaciones y Aplicaciones no Nucleares. Gerencia de Física (Centro Atómico Bariloche). División Física de Metales; Argentina
Fil: Tolley, Alfredo Juan. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comision Nacional de Energía Atómica. Gerencia de Área Investigaciones y Aplicaciones no Nucleares. Gerencia de Física (Centro Atómico Bariloche). División Física de Metales; Argentina
Materia
Al-Cu BASED ALLOYS
PRECIPITATION
MICROSTRUCTURE
HARDNESS
TRANSMISSION ELECTRON MICROSCOPY
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/100190
Acceder
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network_name_str CONICET Digital (CONICET)
spelling Influence of Si and Ge Microalloying Additions and Plastic Deformation on Precipitation Processes in Al-Cu Based AlloysCastro Riglos, Maria VictoriaTolley, Alfredo JuanAl-Cu BASED ALLOYSPRECIPITATIONMICROSTRUCTUREHARDNESSTRANSMISSION ELECTRON MICROSCOPYhttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2The combined effect of micro-alloying with Si and Ge and/or plastic deformationprior to ageing at 160˚C on age hardening has been studied in an Al-2 at%Cu alloy. The results obtained indicate that the hardness response is faster and the peak hardness is higher when plastic deformation and micro-alloying are applied together than performing each procedure individually. Different amounts of deformation, ranging from 0% to 30% have been utilized. An optimum deformation degree for the hardening response has been established around 8%for the Al-Cu-Si-Ge alloy. Characterization by transmission electron microscopy(TEM) shows that the peak hardness is due to a complex microstructurethat contained θ ′′ disc shaped precipitates, rod-shaped Si-Ge precipitatesand θ ′ plates that were heterogeneously nucleated on the Si-Ge particles.Pre-deformation has been found to stimulate the growth of the θ ′ platesdue to enhanced diffusion along dislocation cores. Increasing deformationreduces the influence of the Si-Ge precipitates on heterogeneous nucleation, leading to reduced peak hardness and faster over-ageing.Fil: Castro Riglos, Maria Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comision Nacional de Energía Atómica. Gerencia de Área Investigaciones y Aplicaciones no Nucleares. Gerencia de Física (Centro Atómico Bariloche). División Física de Metales; ArgentinaFil: Tolley, Alfredo Juan. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comision Nacional de Energía Atómica. Gerencia de Área Investigaciones y Aplicaciones no Nucleares. Gerencia de Física (Centro Atómico Bariloche). División Física de Metales; ArgentinaScientific Research Publishing2018-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/100190Castro Riglos, Maria Victoria; Tolley, Alfredo Juan; Influence of Si and Ge Microalloying Additions and Plastic Deformation on Precipitation Processes in Al-Cu Based Alloys; Scientific Research Publishing; Journal of Minerals and Materials Characterization and Engineering; 06; 03; 5-2018; 356-3722327-4077CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.4236/jmmce.2018.63025info:eu-repo/semantics/altIdentifier/url/https://www.scirp.org/journal/paperinformation.aspx?paperid=84563info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-17T11:18:50Zoai:ri.conicet.gov.ar:11336/100190instacron: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:34982025-09-17 11:18:51.203CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Influence of Si and Ge Microalloying Additions and Plastic Deformation on Precipitation Processes in Al-Cu Based Alloys
title Influence of Si and Ge Microalloying Additions and Plastic Deformation on Precipitation Processes in Al-Cu Based Alloys
spellingShingle Influence of Si and Ge Microalloying Additions and Plastic Deformation on Precipitation Processes in Al-Cu Based Alloys
Castro Riglos, Maria Victoria
Al-Cu BASED ALLOYS
PRECIPITATION
MICROSTRUCTURE
HARDNESS
TRANSMISSION ELECTRON MICROSCOPY
title_short Influence of Si and Ge Microalloying Additions and Plastic Deformation on Precipitation Processes in Al-Cu Based Alloys
title_full Influence of Si and Ge Microalloying Additions and Plastic Deformation on Precipitation Processes in Al-Cu Based Alloys
title_fullStr Influence of Si and Ge Microalloying Additions and Plastic Deformation on Precipitation Processes in Al-Cu Based Alloys
title_full_unstemmed Influence of Si and Ge Microalloying Additions and Plastic Deformation on Precipitation Processes in Al-Cu Based Alloys
title_sort Influence of Si and Ge Microalloying Additions and Plastic Deformation on Precipitation Processes in Al-Cu Based Alloys
dc.creator.none.fl_str_mv Castro Riglos, Maria Victoria
Tolley, Alfredo Juan
author Castro Riglos, Maria Victoria
author_facet Castro Riglos, Maria Victoria
Tolley, Alfredo Juan
author_role author
author2 Tolley, Alfredo Juan
author2_role author
dc.subject.none.fl_str_mv Al-Cu BASED ALLOYS
PRECIPITATION
MICROSTRUCTURE
HARDNESS
TRANSMISSION ELECTRON MICROSCOPY
topic Al-Cu BASED ALLOYS
PRECIPITATION
MICROSTRUCTURE
HARDNESS
TRANSMISSION ELECTRON MICROSCOPY
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv The combined effect of micro-alloying with Si and Ge and/or plastic deformationprior to ageing at 160˚C on age hardening has been studied in an Al-2 at%Cu alloy. The results obtained indicate that the hardness response is faster and the peak hardness is higher when plastic deformation and micro-alloying are applied together than performing each procedure individually. Different amounts of deformation, ranging from 0% to 30% have been utilized. An optimum deformation degree for the hardening response has been established around 8%for the Al-Cu-Si-Ge alloy. Characterization by transmission electron microscopy(TEM) shows that the peak hardness is due to a complex microstructurethat contained θ ′′ disc shaped precipitates, rod-shaped Si-Ge precipitatesand θ ′ plates that were heterogeneously nucleated on the Si-Ge particles.Pre-deformation has been found to stimulate the growth of the θ ′ platesdue to enhanced diffusion along dislocation cores. Increasing deformationreduces the influence of the Si-Ge precipitates on heterogeneous nucleation, leading to reduced peak hardness and faster over-ageing.
Fil: Castro Riglos, Maria Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comision Nacional de Energía Atómica. Gerencia de Área Investigaciones y Aplicaciones no Nucleares. Gerencia de Física (Centro Atómico Bariloche). División Física de Metales; Argentina
Fil: Tolley, Alfredo Juan. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Comision Nacional de Energía Atómica. Gerencia de Área Investigaciones y Aplicaciones no Nucleares. Gerencia de Física (Centro Atómico Bariloche). División Física de Metales; Argentina
description The combined effect of micro-alloying with Si and Ge and/or plastic deformationprior to ageing at 160˚C on age hardening has been studied in an Al-2 at%Cu alloy. The results obtained indicate that the hardness response is faster and the peak hardness is higher when plastic deformation and micro-alloying are applied together than performing each procedure individually. Different amounts of deformation, ranging from 0% to 30% have been utilized. An optimum deformation degree for the hardening response has been established around 8%for the Al-Cu-Si-Ge alloy. Characterization by transmission electron microscopy(TEM) shows that the peak hardness is due to a complex microstructurethat contained θ ′′ disc shaped precipitates, rod-shaped Si-Ge precipitatesand θ ′ plates that were heterogeneously nucleated on the Si-Ge particles.Pre-deformation has been found to stimulate the growth of the θ ′ platesdue to enhanced diffusion along dislocation cores. Increasing deformationreduces the influence of the Si-Ge precipitates on heterogeneous nucleation, leading to reduced peak hardness and faster over-ageing.
publishDate 2018
dc.date.none.fl_str_mv 2018-05
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/11336/100190
Castro Riglos, Maria Victoria; Tolley, Alfredo Juan; Influence of Si and Ge Microalloying Additions and Plastic Deformation on Precipitation Processes in Al-Cu Based Alloys; Scientific Research Publishing; Journal of Minerals and Materials Characterization and Engineering; 06; 03; 5-2018; 356-372
2327-4077
CONICET Digital
CONICET
url http://hdl.handle.net/11336/100190
identifier_str_mv Castro Riglos, Maria Victoria; Tolley, Alfredo Juan; Influence of Si and Ge Microalloying Additions and Plastic Deformation on Precipitation Processes in Al-Cu Based Alloys; Scientific Research Publishing; Journal of Minerals and Materials Characterization and Engineering; 06; 03; 5-2018; 356-372
2327-4077
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.4236/jmmce.2018.63025
info:eu-repo/semantics/altIdentifier/url/https://www.scirp.org/journal/paperinformation.aspx?paperid=84563
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
dc.publisher.none.fl_str_mv Scientific Research Publishing
publisher.none.fl_str_mv Scientific Research Publishing
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 13.001348

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