Liquid phase densification of Al-4.5 wt.% Cu powder reinforced with 5 wt.% Saffil short fibers during hot pressing

Autores
Moreno, M. F.; Gonzalez Oliver, Carlos Julian R.
Año de publicación
2013
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The Alumix 13 (wt.%) (Al–4.5 Cu 0.5 Mg 0.2 Si) powder with and without 5 wt.% Saffil short fibers specimens were hot pressed in the range 580–620 °C. The densification during pressure increase was fitted using the Konopicky model and an agreement with the associated linear plot P vs. ln(1/(1 − D) was found for both materials, where P is applied pressure and D is the relative density of the porous material. The transient liquid phase formed from the elemental Al and Cu powder particles above the eutectic temperature of 548 °C at low hot pressing pressures, allows to increase the densification due to the reduction in the yield stress of the porous material. The active liquid flow enhanced the deformation between Al particles in the beginning of the pressure ramp. For higher pressures, a sudden break to a higher slope in Konopicky plot was found. This hardening behavior was detected from 610 °C for pure Alumix 13 and it was systematically developed at 580, 600, 610 and 620 °C for the composites, and it can be assigned to diffusion of Cu into the Al grains. During the constant pressure stage the densification was well fitted using the Power Law Creep model with exponents of n = 1 and n = 2, which are related to Newtonian viscous flow and superplastic deformation, respectively. Besides, final hot pressed composites samples retained an important quantity of solidified liquid phase located in between the Saffil fibers agglomerates.
Fil: Moreno, M. F.. Comision Nacional de Energia Atomica. Gerencia del Area de Investigaciones y Aplicaciones no Nucleares. Gerencia de Fisica (CAB); Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Gonzalez Oliver, Carlos Julian R.. Comision Nacional de Energia Atomica. Gerencia del Area de Investigaciones y Aplicaciones no Nucleares. Gerencia de Fisica (CAB); Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
Hot Pressing
Metal Matrix Composites
Ceramic Short Fibers
Liquid Phase Sintering
Power Law Creep
Super Plastic Deformation
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:11336/9886
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/9886
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Liquid phase densification of Al-4.5 wt.% Cu powder reinforced with 5 wt.% Saffil short fibers during hot pressingMoreno, M. F.Gonzalez Oliver, Carlos Julian R.Hot PressingMetal Matrix CompositesCeramic Short FibersLiquid Phase SinteringPower Law CreepSuper Plastic Deformationhttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2The Alumix 13 (wt.%) (Al–4.5 Cu 0.5 Mg 0.2 Si) powder with and without 5 wt.% Saffil short fibers specimens were hot pressed in the range 580–620 °C. The densification during pressure increase was fitted using the Konopicky model and an agreement with the associated linear plot P vs. ln(1/(1 − D) was found for both materials, where P is applied pressure and D is the relative density of the porous material. The transient liquid phase formed from the elemental Al and Cu powder particles above the eutectic temperature of 548 °C at low hot pressing pressures, allows to increase the densification due to the reduction in the yield stress of the porous material. The active liquid flow enhanced the deformation between Al particles in the beginning of the pressure ramp. For higher pressures, a sudden break to a higher slope in Konopicky plot was found. This hardening behavior was detected from 610 °C for pure Alumix 13 and it was systematically developed at 580, 600, 610 and 620 °C for the composites, and it can be assigned to diffusion of Cu into the Al grains. During the constant pressure stage the densification was well fitted using the Power Law Creep model with exponents of n = 1 and n = 2, which are related to Newtonian viscous flow and superplastic deformation, respectively. Besides, final hot pressed composites samples retained an important quantity of solidified liquid phase located in between the Saffil fibers agglomerates.Fil: Moreno, M. F.. Comision Nacional de Energia Atomica. Gerencia del Area de Investigaciones y Aplicaciones no Nucleares. Gerencia de Fisica (CAB); Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Gonzalez Oliver, Carlos Julian R.. Comision Nacional de Energia Atomica. Gerencia del Area de Investigaciones y Aplicaciones no Nucleares. Gerencia de Fisica (CAB); Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaElsevier2013-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/9886Moreno, M. F.; Gonzalez Oliver, Carlos Julian R.; Liquid phase densification of Al-4.5 wt.% Cu powder reinforced with 5 wt.% Saffil short fibers during hot pressing; Elsevier; Powder Technology; 245; 9-2013; 13-200032-5910enginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0032591013000430info:eu-repo/semantics/altIdentifier/doi/10.1016/j.powtec.2013.01.026info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-12-23T13:35:53Zoai:ri.conicet.gov.ar:11336/9886instacron: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:34982025-12-23 13:35:53.984CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Liquid phase densification of Al-4.5 wt.% Cu powder reinforced with 5 wt.% Saffil short fibers during hot pressing
title Liquid phase densification of Al-4.5 wt.% Cu powder reinforced with 5 wt.% Saffil short fibers during hot pressing
spellingShingle Liquid phase densification of Al-4.5 wt.% Cu powder reinforced with 5 wt.% Saffil short fibers during hot pressing
Moreno, M. F.
Hot Pressing
Metal Matrix Composites
Ceramic Short Fibers
Liquid Phase Sintering
Power Law Creep
Super Plastic Deformation
title_short Liquid phase densification of Al-4.5 wt.% Cu powder reinforced with 5 wt.% Saffil short fibers during hot pressing
title_full Liquid phase densification of Al-4.5 wt.% Cu powder reinforced with 5 wt.% Saffil short fibers during hot pressing
title_fullStr Liquid phase densification of Al-4.5 wt.% Cu powder reinforced with 5 wt.% Saffil short fibers during hot pressing
title_full_unstemmed Liquid phase densification of Al-4.5 wt.% Cu powder reinforced with 5 wt.% Saffil short fibers during hot pressing
title_sort Liquid phase densification of Al-4.5 wt.% Cu powder reinforced with 5 wt.% Saffil short fibers during hot pressing
dc.creator.none.fl_str_mv Moreno, M. F.
Gonzalez Oliver, Carlos Julian R.
author Moreno, M. F.
author_facet Moreno, M. F.
Gonzalez Oliver, Carlos Julian R.
author_role author
author2 Gonzalez Oliver, Carlos Julian R.
author2_role author
dc.subject.none.fl_str_mv Hot Pressing
Metal Matrix Composites
Ceramic Short Fibers
Liquid Phase Sintering
Power Law Creep
Super Plastic Deformation
topic Hot Pressing
Metal Matrix Composites
Ceramic Short Fibers
Liquid Phase Sintering
Power Law Creep
Super Plastic Deformation
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 Alumix 13 (wt.%) (Al–4.5 Cu 0.5 Mg 0.2 Si) powder with and without 5 wt.% Saffil short fibers specimens were hot pressed in the range 580–620 °C. The densification during pressure increase was fitted using the Konopicky model and an agreement with the associated linear plot P vs. ln(1/(1 − D) was found for both materials, where P is applied pressure and D is the relative density of the porous material. The transient liquid phase formed from the elemental Al and Cu powder particles above the eutectic temperature of 548 °C at low hot pressing pressures, allows to increase the densification due to the reduction in the yield stress of the porous material. The active liquid flow enhanced the deformation between Al particles in the beginning of the pressure ramp. For higher pressures, a sudden break to a higher slope in Konopicky plot was found. This hardening behavior was detected from 610 °C for pure Alumix 13 and it was systematically developed at 580, 600, 610 and 620 °C for the composites, and it can be assigned to diffusion of Cu into the Al grains. During the constant pressure stage the densification was well fitted using the Power Law Creep model with exponents of n = 1 and n = 2, which are related to Newtonian viscous flow and superplastic deformation, respectively. Besides, final hot pressed composites samples retained an important quantity of solidified liquid phase located in between the Saffil fibers agglomerates.
Fil: Moreno, M. F.. Comision Nacional de Energia Atomica. Gerencia del Area de Investigaciones y Aplicaciones no Nucleares. Gerencia de Fisica (CAB); Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Gonzalez Oliver, Carlos Julian R.. Comision Nacional de Energia Atomica. Gerencia del Area de Investigaciones y Aplicaciones no Nucleares. Gerencia de Fisica (CAB); Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description The Alumix 13 (wt.%) (Al–4.5 Cu 0.5 Mg 0.2 Si) powder with and without 5 wt.% Saffil short fibers specimens were hot pressed in the range 580–620 °C. The densification during pressure increase was fitted using the Konopicky model and an agreement with the associated linear plot P vs. ln(1/(1 − D) was found for both materials, where P is applied pressure and D is the relative density of the porous material. The transient liquid phase formed from the elemental Al and Cu powder particles above the eutectic temperature of 548 °C at low hot pressing pressures, allows to increase the densification due to the reduction in the yield stress of the porous material. The active liquid flow enhanced the deformation between Al particles in the beginning of the pressure ramp. For higher pressures, a sudden break to a higher slope in Konopicky plot was found. This hardening behavior was detected from 610 °C for pure Alumix 13 and it was systematically developed at 580, 600, 610 and 620 °C for the composites, and it can be assigned to diffusion of Cu into the Al grains. During the constant pressure stage the densification was well fitted using the Power Law Creep model with exponents of n = 1 and n = 2, which are related to Newtonian viscous flow and superplastic deformation, respectively. Besides, final hot pressed composites samples retained an important quantity of solidified liquid phase located in between the Saffil fibers agglomerates.
publishDate 2013
dc.date.none.fl_str_mv 2013-09
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/11336/9886
Moreno, M. F.; Gonzalez Oliver, Carlos Julian R.; Liquid phase densification of Al-4.5 wt.% Cu powder reinforced with 5 wt.% Saffil short fibers during hot pressing; Elsevier; Powder Technology; 245; 9-2013; 13-20
0032-5910
url http://hdl.handle.net/11336/9886
identifier_str_mv Moreno, M. F.; Gonzalez Oliver, Carlos Julian R.; Liquid phase densification of Al-4.5 wt.% Cu powder reinforced with 5 wt.% Saffil short fibers during hot pressing; Elsevier; Powder Technology; 245; 9-2013; 13-20
0032-5910
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0032591013000430
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.powtec.2013.01.026
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
publisher.none.fl_str_mv Elsevier
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 13.049097

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