Superplastic behavior of AZ31 processed by ECAP

Autores
Svoboda, Hernán Gabriel; Vago, Federico
Año de publicación
2015
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Magnesium base alloys have reached an important development as structural materials the last years due to its good strength/weight relationship. On the other hand, superplastic forming has also acquired a technological interest in the last time, due to the possibility of achieving complex geometries in only one forming step, with competitive strain rates. In this sense, grain refining promotes grain boundary sliding mechanism, responsible of superplastic behavior in metallic materials. ECAP (Equal Channel Angular Pressing) processing introduce a severe plastic deformation without modifying the sample geometry, being an efficient way to grain refining. The objective of this work was to study the influence of ECAP processing on the superplastic behavior of an AZ31 Mg alloy. Samples in “as cast” conditions were processed by ECAP with 1, 2, 3 and 4 passes. Material obtained was characterized microstructurally, obtaining grain size and recrystallized fraction, for each condition. Microhardness measurements were done as well as high temperature tension tests for different test temperatures and initial strain rates. Grain refinement, recrystallized fraction and microhardness increased with the number of ECAP passes. Deformation to fracture improved with ECAP processing, reaching 250% for 350 °C and 1x10-4 sec-1. Maximum stress decreased with number of passes, temperature and diminishing strain rate.
Fil: Svoboda, Hernán Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Tecnologías y Ciencias de la Ingeniería "Hilario Fernández Long". Universidad de Buenos Aires. Facultad de Ingeniería. Instituto de Tecnologías y Ciencias de la Ingeniería "Hilario Fernández Long"; Argentina
Fil: Vago, Federico. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Tecnologías y Ciencias de la Ingeniería "Hilario Fernández Long". Universidad de Buenos Aires. Facultad de Ingeniería. Instituto de Tecnologías y Ciencias de la Ingeniería "Hilario Fernández Long"; Argentina
Materia
Az31
Superplasticity
Ecap
Hot Tensile Test
Grain Refinement
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:11336/19861
Acceder
id CONICETDig_256b808141e8ccd7322549c63188e7b5
oai_identifier_str oai:ri.conicet.gov.ar:11336/19861
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Superplastic behavior of AZ31 processed by ECAPSvoboda, Hernán GabrielVago, FedericoAz31SuperplasticityEcapHot Tensile TestGrain Refinementhttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2Magnesium base alloys have reached an important development as structural materials the last years due to its good strength/weight relationship. On the other hand, superplastic forming has also acquired a technological interest in the last time, due to the possibility of achieving complex geometries in only one forming step, with competitive strain rates. In this sense, grain refining promotes grain boundary sliding mechanism, responsible of superplastic behavior in metallic materials. ECAP (Equal Channel Angular Pressing) processing introduce a severe plastic deformation without modifying the sample geometry, being an efficient way to grain refining. The objective of this work was to study the influence of ECAP processing on the superplastic behavior of an AZ31 Mg alloy. Samples in “as cast” conditions were processed by ECAP with 1, 2, 3 and 4 passes. Material obtained was characterized microstructurally, obtaining grain size and recrystallized fraction, for each condition. Microhardness measurements were done as well as high temperature tension tests for different test temperatures and initial strain rates. Grain refinement, recrystallized fraction and microhardness increased with the number of ECAP passes. Deformation to fracture improved with ECAP processing, reaching 250% for 350 °C and 1x10-4 sec-1. Maximum stress decreased with number of passes, temperature and diminishing strain rate.Fil: Svoboda, Hernán Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Tecnologías y Ciencias de la Ingeniería "Hilario Fernández Long". Universidad de Buenos Aires. Facultad de Ingeniería. Instituto de Tecnologías y Ciencias de la Ingeniería "Hilario Fernández Long"; ArgentinaFil: Vago, Federico. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Tecnologías y Ciencias de la Ingeniería "Hilario Fernández Long". Universidad de Buenos Aires. Facultad de Ingeniería. Instituto de Tecnologías y Ciencias de la Ingeniería "Hilario Fernández Long"; ArgentinaElsevier2015-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/19861Svoboda, Hernán Gabriel; Vago, Federico; Superplastic behavior of AZ31 processed by ECAP; Elsevier; Procedia Materials Science; 9; 9-2015; 590-5982211-8128CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S2211812815002187info:eu-repo/semantics/altIdentifier/doi/10.1016/j.mspro.2015.05.034info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:39:37Zoai:ri.conicet.gov.ar:11336/19861instacron: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 09:39:38.21CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Superplastic behavior of AZ31 processed by ECAP
title Superplastic behavior of AZ31 processed by ECAP
spellingShingle Superplastic behavior of AZ31 processed by ECAP
Svoboda, Hernán Gabriel
Az31
Superplasticity
Ecap
Hot Tensile Test
Grain Refinement
title_short Superplastic behavior of AZ31 processed by ECAP
title_full Superplastic behavior of AZ31 processed by ECAP
title_fullStr Superplastic behavior of AZ31 processed by ECAP
title_full_unstemmed Superplastic behavior of AZ31 processed by ECAP
title_sort Superplastic behavior of AZ31 processed by ECAP
dc.creator.none.fl_str_mv Svoboda, Hernán Gabriel
Vago, Federico
author Svoboda, Hernán Gabriel
author_facet Svoboda, Hernán Gabriel
Vago, Federico
author_role author
author2 Vago, Federico
author2_role author
dc.subject.none.fl_str_mv Az31
Superplasticity
Ecap
Hot Tensile Test
Grain Refinement
topic Az31
Superplasticity
Ecap
Hot Tensile Test
Grain Refinement
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Magnesium base alloys have reached an important development as structural materials the last years due to its good strength/weight relationship. On the other hand, superplastic forming has also acquired a technological interest in the last time, due to the possibility of achieving complex geometries in only one forming step, with competitive strain rates. In this sense, grain refining promotes grain boundary sliding mechanism, responsible of superplastic behavior in metallic materials. ECAP (Equal Channel Angular Pressing) processing introduce a severe plastic deformation without modifying the sample geometry, being an efficient way to grain refining. The objective of this work was to study the influence of ECAP processing on the superplastic behavior of an AZ31 Mg alloy. Samples in “as cast” conditions were processed by ECAP with 1, 2, 3 and 4 passes. Material obtained was characterized microstructurally, obtaining grain size and recrystallized fraction, for each condition. Microhardness measurements were done as well as high temperature tension tests for different test temperatures and initial strain rates. Grain refinement, recrystallized fraction and microhardness increased with the number of ECAP passes. Deformation to fracture improved with ECAP processing, reaching 250% for 350 °C and 1x10-4 sec-1. Maximum stress decreased with number of passes, temperature and diminishing strain rate.
Fil: Svoboda, Hernán Gabriel. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Tecnologías y Ciencias de la Ingeniería "Hilario Fernández Long". Universidad de Buenos Aires. Facultad de Ingeniería. Instituto de Tecnologías y Ciencias de la Ingeniería "Hilario Fernández Long"; Argentina
Fil: Vago, Federico. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Houssay. Instituto de Tecnologías y Ciencias de la Ingeniería "Hilario Fernández Long". Universidad de Buenos Aires. Facultad de Ingeniería. Instituto de Tecnologías y Ciencias de la Ingeniería "Hilario Fernández Long"; Argentina
description Magnesium base alloys have reached an important development as structural materials the last years due to its good strength/weight relationship. On the other hand, superplastic forming has also acquired a technological interest in the last time, due to the possibility of achieving complex geometries in only one forming step, with competitive strain rates. In this sense, grain refining promotes grain boundary sliding mechanism, responsible of superplastic behavior in metallic materials. ECAP (Equal Channel Angular Pressing) processing introduce a severe plastic deformation without modifying the sample geometry, being an efficient way to grain refining. The objective of this work was to study the influence of ECAP processing on the superplastic behavior of an AZ31 Mg alloy. Samples in “as cast” conditions were processed by ECAP with 1, 2, 3 and 4 passes. Material obtained was characterized microstructurally, obtaining grain size and recrystallized fraction, for each condition. Microhardness measurements were done as well as high temperature tension tests for different test temperatures and initial strain rates. Grain refinement, recrystallized fraction and microhardness increased with the number of ECAP passes. Deformation to fracture improved with ECAP processing, reaching 250% for 350 °C and 1x10-4 sec-1. Maximum stress decreased with number of passes, temperature and diminishing strain rate.
publishDate 2015
dc.date.none.fl_str_mv 2015-09
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/11336/19861
Svoboda, Hernán Gabriel; Vago, Federico; Superplastic behavior of AZ31 processed by ECAP; Elsevier; Procedia Materials Science; 9; 9-2015; 590-598
2211-8128
CONICET Digital
CONICET
url http://hdl.handle.net/11336/19861
identifier_str_mv Svoboda, Hernán Gabriel; Vago, Federico; Superplastic behavior of AZ31 processed by ECAP; Elsevier; Procedia Materials Science; 9; 9-2015; 590-598
2211-8128
CONICET Digital
CONICET
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/S2211812815002187
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.mspro.2015.05.034
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
_version_ 1844613254493503488
score 13.069144

Publicaciones similares