Influence of indirect ultrasonic vibration on the microstructure and mechanical behavior of Al-Si-Cu alloy

Bibliographic Details
Main Author: Puga, Hélder
Publication Date: 2013
Other Authors: Barbosa, J., Costa, Sónia, Ribeiro, Carlos Silva, Pinto, A. M. P., Prokic, Miodrag
Format: Article
Language: eng
Source: Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
Download full: https://hdl.handle.net/1822/24847
Summary: The influence of high intensity ultrasound (US) propagating through a steel mold on the microstructure and mechanical properties of die-cast AlSi9Cu3, for different levels of electric power and at different distances to the waveguide/mold interface. The influence of those parameters on the morphology of -Al and eutectic Si and on the volume of porosity were investigated and characterized. The morphological characterization revealed that the high intensity vibration not only promoted the formation of small -Al globular grains but also modify the eutectic silicon, as well as decreased the volume of porosity. Besides microstructure modification, US treatment improved the alloy mechanical properties, namely UTS and strain, which maximum values were 339 MPa and 2.9% respectively by comparison to the values obtained for castings produced without US vibration. A mechanism of eutectic Si modification based on theoretical-experimental analysis is proposed
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spelling Influence of indirect ultrasonic vibration on the microstructure and mechanical behavior of Al-Si-Cu alloyAluminium alloysCastingNucleationMechanical propertiesUltrasoundUltrasonic vibrationSi modificationMechanical characterizationAluminum alloysScience & TechnologyThe influence of high intensity ultrasound (US) propagating through a steel mold on the microstructure and mechanical properties of die-cast AlSi9Cu3, for different levels of electric power and at different distances to the waveguide/mold interface. The influence of those parameters on the morphology of -Al and eutectic Si and on the volume of porosity were investigated and characterized. The morphological characterization revealed that the high intensity vibration not only promoted the formation of small -Al globular grains but also modify the eutectic silicon, as well as decreased the volume of porosity. Besides microstructure modification, US treatment improved the alloy mechanical properties, namely UTS and strain, which maximum values were 339 MPa and 2.9% respectively by comparison to the values obtained for castings produced without US vibration. A mechanism of eutectic Si modification based on theoretical-experimental analysis is proposedFCT - Fundação para a Ciência e TecnologiaElsevierUniversidade do MinhoPuga, HélderBarbosa, J.Costa, SóniaRibeiro, Carlos SilvaPinto, A. M. P.Prokic, Miodrag20132013-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/1822/24847eng0921-509310.1016/j.msea.2012.09.106info:eu-repo/semantics/openAccessreponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiainstacron:RCAAP2025-04-12T04:42:34Zoai:repositorium.sdum.uminho.pt:1822/24847Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireinfo@rcaap.ptopendoar:https://opendoar.ac.uk/repository/71602025-05-28T15:36:59.766327Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologiafalse
dc.title.none.fl_str_mv Influence of indirect ultrasonic vibration on the microstructure and mechanical behavior of Al-Si-Cu alloy
title Influence of indirect ultrasonic vibration on the microstructure and mechanical behavior of Al-Si-Cu alloy
spellingShingle Influence of indirect ultrasonic vibration on the microstructure and mechanical behavior of Al-Si-Cu alloy
Puga, Hélder
Aluminium alloys
Casting
Nucleation
Mechanical properties
Ultrasound
Ultrasonic vibration
Si modification
Mechanical characterization
Aluminum alloys
Science & Technology
title_short Influence of indirect ultrasonic vibration on the microstructure and mechanical behavior of Al-Si-Cu alloy
title_full Influence of indirect ultrasonic vibration on the microstructure and mechanical behavior of Al-Si-Cu alloy
title_fullStr Influence of indirect ultrasonic vibration on the microstructure and mechanical behavior of Al-Si-Cu alloy
title_full_unstemmed Influence of indirect ultrasonic vibration on the microstructure and mechanical behavior of Al-Si-Cu alloy
title_sort Influence of indirect ultrasonic vibration on the microstructure and mechanical behavior of Al-Si-Cu alloy
author Puga, Hélder
author_facet Puga, Hélder
Barbosa, J.
Costa, Sónia
Ribeiro, Carlos Silva
Pinto, A. M. P.
Prokic, Miodrag
author_role author
author2 Barbosa, J.
Costa, Sónia
Ribeiro, Carlos Silva
Pinto, A. M. P.
Prokic, Miodrag
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade do Minho
dc.contributor.author.fl_str_mv Puga, Hélder
Barbosa, J.
Costa, Sónia
Ribeiro, Carlos Silva
Pinto, A. M. P.
Prokic, Miodrag
dc.subject.por.fl_str_mv Aluminium alloys
Casting
Nucleation
Mechanical properties
Ultrasound
Ultrasonic vibration
Si modification
Mechanical characterization
Aluminum alloys
Science & Technology
topic Aluminium alloys
Casting
Nucleation
Mechanical properties
Ultrasound
Ultrasonic vibration
Si modification
Mechanical characterization
Aluminum alloys
Science & Technology
description The influence of high intensity ultrasound (US) propagating through a steel mold on the microstructure and mechanical properties of die-cast AlSi9Cu3, for different levels of electric power and at different distances to the waveguide/mold interface. The influence of those parameters on the morphology of -Al and eutectic Si and on the volume of porosity were investigated and characterized. The morphological characterization revealed that the high intensity vibration not only promoted the formation of small -Al globular grains but also modify the eutectic silicon, as well as decreased the volume of porosity. Besides microstructure modification, US treatment improved the alloy mechanical properties, namely UTS and strain, which maximum values were 339 MPa and 2.9% respectively by comparison to the values obtained for castings produced without US vibration. A mechanism of eutectic Si modification based on theoretical-experimental analysis is proposed
publishDate 2013
dc.date.none.fl_str_mv 2013
2013-01-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://hdl.handle.net/1822/24847
url https://hdl.handle.net/1822/24847
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 0921-5093
10.1016/j.msea.2012.09.106
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
instname:FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron:RCAAP
instname_str FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
instacron_str RCAAP
institution RCAAP
reponame_str Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
collection Repositórios Científicos de Acesso Aberto de Portugal (RCAAP)
repository.name.fl_str_mv Repositórios Científicos de Acesso Aberto de Portugal (RCAAP) - FCCN, serviços digitais da FCT – Fundação para a Ciência e a Tecnologia
repository.mail.fl_str_mv info@rcaap.pt
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