Strengthening of duplex stainless steel processed by equal channel angular pressing (ECAP)

Autores
Muñoz Bolaños, Jairo Alberto; Chand, Mohan; Signorelli, Javier Walter; Calvo, Jessica; Cabrera, José María
Año de publicación
2022
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
This manuscript presents the study of the microstructural evolution, plastic anisotropy, and mechanical behavior of a duplex stainless steel (DSS) processed by the equal channel angular pressing (ECAP) technique. The ECAP process produced shear bands affecting both phases, austenite and ferrite, which in turns act as preferential sites for the appearance of the new ultrafine grains. Microstructural observations indicated grain sizes smaller than 300 nm in both phases. However, marked differences in the grain boundary misorientations were observed. Most ferrite grain boundaries showed low misorientations (average misorientation of 30°). In contrast, the austenite grain boundaries were mainly dominated by high-angle grain boundaries (average misorientation of 39°). The ECAP processing allowed to reach a yield strength over 1.1 GPa after one ECAP pass. Dislocations formed walls in the ferrite, while they were distributed evenly in the austenite grains creating plastic gradients between the two phases. Through the visco-plastic self-consistent model, it was found that austenite and ferrite strain hardening at different rates, generating plastic instabilities at different strain magnitudes. In this way, it was shown that austenite is the phase that provides more hardening while ferrite provides ductility. Regarding the anisotropy of the steel, crystal plasticity simulations showed that during the first passes of ECAP, the Lankford coefficients increase notably due to the heterogeneous microstructure of sheared grains with a higher density of defects forming subgrains in ferrite than austenite. Moreover, the austenite was more responsible for the larger planar anisotropy (Δ r = 2.18) values than ferrite (Δ r = 1.67) after two ECAP passes.
Fil: Muñoz Bolaños, Jairo Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; Argentina. Universidad Politécnica de Catalunya; España
Fil: Chand, Mohan. Universidad Politécnica de Catalunya; España
Fil: Signorelli, Javier Walter. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; Argentina
Fil: Calvo, Jessica. Universidad Politécnica de Catalunya; España
Fil: Cabrera, José María. Universidad Politécnica de Catalunya; España
Materia
CRYSTAL PLASTICITY
DUPLEX STEEL
EQUAL CHANNEL ANGULAR PRESSING
SEVERE PLASTIC DEFORMATION
TEXTURE
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/213778
Acceder
id CONICETDig_6c07063d87f8ba80e3245584958e9418
oai_identifier_str oai:ri.conicet.gov.ar:11336/213778
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Strengthening of duplex stainless steel processed by equal channel angular pressing (ECAP)Muñoz Bolaños, Jairo AlbertoChand, MohanSignorelli, Javier WalterCalvo, JessicaCabrera, José MaríaCRYSTAL PLASTICITYDUPLEX STEELEQUAL CHANNEL ANGULAR PRESSINGSEVERE PLASTIC DEFORMATIONTEXTUREhttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2This manuscript presents the study of the microstructural evolution, plastic anisotropy, and mechanical behavior of a duplex stainless steel (DSS) processed by the equal channel angular pressing (ECAP) technique. The ECAP process produced shear bands affecting both phases, austenite and ferrite, which in turns act as preferential sites for the appearance of the new ultrafine grains. Microstructural observations indicated grain sizes smaller than 300 nm in both phases. However, marked differences in the grain boundary misorientations were observed. Most ferrite grain boundaries showed low misorientations (average misorientation of 30°). In contrast, the austenite grain boundaries were mainly dominated by high-angle grain boundaries (average misorientation of 39°). The ECAP processing allowed to reach a yield strength over 1.1 GPa after one ECAP pass. Dislocations formed walls in the ferrite, while they were distributed evenly in the austenite grains creating plastic gradients between the two phases. Through the visco-plastic self-consistent model, it was found that austenite and ferrite strain hardening at different rates, generating plastic instabilities at different strain magnitudes. In this way, it was shown that austenite is the phase that provides more hardening while ferrite provides ductility. Regarding the anisotropy of the steel, crystal plasticity simulations showed that during the first passes of ECAP, the Lankford coefficients increase notably due to the heterogeneous microstructure of sheared grains with a higher density of defects forming subgrains in ferrite than austenite. Moreover, the austenite was more responsible for the larger planar anisotropy (Δ r = 2.18) values than ferrite (Δ r = 1.67) after two ECAP passes.Fil: Muñoz Bolaños, Jairo Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; Argentina. Universidad Politécnica de Catalunya; EspañaFil: Chand, Mohan. Universidad Politécnica de Catalunya; EspañaFil: Signorelli, Javier Walter. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; ArgentinaFil: Calvo, Jessica. Universidad Politécnica de Catalunya; EspañaFil: Cabrera, José María. Universidad Politécnica de Catalunya; EspañaSpringer London Ltd2022-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/213778Muñoz Bolaños, Jairo Alberto; Chand, Mohan; Signorelli, Javier Walter; Calvo, Jessica; Cabrera, José María; Strengthening of duplex stainless steel processed by equal channel angular pressing (ECAP); Springer London Ltd; International Journal of Advanced Manufacturing Technology; 123; 7-8; 12-2022; 2261-22780268-3768CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007/s00170-022-10311-2info:eu-repo/semantics/altIdentifier/doi/10.1007/s00170-022-10311-2info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:07:23Zoai:ri.conicet.gov.ar:11336/213778instacron: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 10:07:23.865CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Strengthening of duplex stainless steel processed by equal channel angular pressing (ECAP)
title Strengthening of duplex stainless steel processed by equal channel angular pressing (ECAP)
spellingShingle Strengthening of duplex stainless steel processed by equal channel angular pressing (ECAP)
Muñoz Bolaños, Jairo Alberto
CRYSTAL PLASTICITY
DUPLEX STEEL
EQUAL CHANNEL ANGULAR PRESSING
SEVERE PLASTIC DEFORMATION
TEXTURE
title_short Strengthening of duplex stainless steel processed by equal channel angular pressing (ECAP)
title_full Strengthening of duplex stainless steel processed by equal channel angular pressing (ECAP)
title_fullStr Strengthening of duplex stainless steel processed by equal channel angular pressing (ECAP)
title_full_unstemmed Strengthening of duplex stainless steel processed by equal channel angular pressing (ECAP)
title_sort Strengthening of duplex stainless steel processed by equal channel angular pressing (ECAP)
dc.creator.none.fl_str_mv Muñoz Bolaños, Jairo Alberto
Chand, Mohan
Signorelli, Javier Walter
Calvo, Jessica
Cabrera, José María
author Muñoz Bolaños, Jairo Alberto
author_facet Muñoz Bolaños, Jairo Alberto
Chand, Mohan
Signorelli, Javier Walter
Calvo, Jessica
Cabrera, José María
author_role author
author2 Chand, Mohan
Signorelli, Javier Walter
Calvo, Jessica
Cabrera, José María
author2_role author
author
author
author
dc.subject.none.fl_str_mv CRYSTAL PLASTICITY
DUPLEX STEEL
EQUAL CHANNEL ANGULAR PRESSING
SEVERE PLASTIC DEFORMATION
TEXTURE
topic CRYSTAL PLASTICITY
DUPLEX STEEL
EQUAL CHANNEL ANGULAR PRESSING
SEVERE PLASTIC DEFORMATION
TEXTURE
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv This manuscript presents the study of the microstructural evolution, plastic anisotropy, and mechanical behavior of a duplex stainless steel (DSS) processed by the equal channel angular pressing (ECAP) technique. The ECAP process produced shear bands affecting both phases, austenite and ferrite, which in turns act as preferential sites for the appearance of the new ultrafine grains. Microstructural observations indicated grain sizes smaller than 300 nm in both phases. However, marked differences in the grain boundary misorientations were observed. Most ferrite grain boundaries showed low misorientations (average misorientation of 30°). In contrast, the austenite grain boundaries were mainly dominated by high-angle grain boundaries (average misorientation of 39°). The ECAP processing allowed to reach a yield strength over 1.1 GPa after one ECAP pass. Dislocations formed walls in the ferrite, while they were distributed evenly in the austenite grains creating plastic gradients between the two phases. Through the visco-plastic self-consistent model, it was found that austenite and ferrite strain hardening at different rates, generating plastic instabilities at different strain magnitudes. In this way, it was shown that austenite is the phase that provides more hardening while ferrite provides ductility. Regarding the anisotropy of the steel, crystal plasticity simulations showed that during the first passes of ECAP, the Lankford coefficients increase notably due to the heterogeneous microstructure of sheared grains with a higher density of defects forming subgrains in ferrite than austenite. Moreover, the austenite was more responsible for the larger planar anisotropy (Δ r = 2.18) values than ferrite (Δ r = 1.67) after two ECAP passes.
Fil: Muñoz Bolaños, Jairo Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; Argentina. Universidad Politécnica de Catalunya; España
Fil: Chand, Mohan. Universidad Politécnica de Catalunya; España
Fil: Signorelli, Javier Walter. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Instituto de Física de Rosario. Universidad Nacional de Rosario. Instituto de Física de Rosario; Argentina
Fil: Calvo, Jessica. Universidad Politécnica de Catalunya; España
Fil: Cabrera, José María. Universidad Politécnica de Catalunya; España
description This manuscript presents the study of the microstructural evolution, plastic anisotropy, and mechanical behavior of a duplex stainless steel (DSS) processed by the equal channel angular pressing (ECAP) technique. The ECAP process produced shear bands affecting both phases, austenite and ferrite, which in turns act as preferential sites for the appearance of the new ultrafine grains. Microstructural observations indicated grain sizes smaller than 300 nm in both phases. However, marked differences in the grain boundary misorientations were observed. Most ferrite grain boundaries showed low misorientations (average misorientation of 30°). In contrast, the austenite grain boundaries were mainly dominated by high-angle grain boundaries (average misorientation of 39°). The ECAP processing allowed to reach a yield strength over 1.1 GPa after one ECAP pass. Dislocations formed walls in the ferrite, while they were distributed evenly in the austenite grains creating plastic gradients between the two phases. Through the visco-plastic self-consistent model, it was found that austenite and ferrite strain hardening at different rates, generating plastic instabilities at different strain magnitudes. In this way, it was shown that austenite is the phase that provides more hardening while ferrite provides ductility. Regarding the anisotropy of the steel, crystal plasticity simulations showed that during the first passes of ECAP, the Lankford coefficients increase notably due to the heterogeneous microstructure of sheared grains with a higher density of defects forming subgrains in ferrite than austenite. Moreover, the austenite was more responsible for the larger planar anisotropy (Δ r = 2.18) values than ferrite (Δ r = 1.67) after two ECAP passes.
publishDate 2022
dc.date.none.fl_str_mv 2022-12
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/11336/213778
Muñoz Bolaños, Jairo Alberto; Chand, Mohan; Signorelli, Javier Walter; Calvo, Jessica; Cabrera, José María; Strengthening of duplex stainless steel processed by equal channel angular pressing (ECAP); Springer London Ltd; International Journal of Advanced Manufacturing Technology; 123; 7-8; 12-2022; 2261-2278
0268-3768
CONICET Digital
CONICET
url http://hdl.handle.net/11336/213778
identifier_str_mv Muñoz Bolaños, Jairo Alberto; Chand, Mohan; Signorelli, Javier Walter; Calvo, Jessica; Cabrera, José María; Strengthening of duplex stainless steel processed by equal channel angular pressing (ECAP); Springer London Ltd; International Journal of Advanced Manufacturing Technology; 123; 7-8; 12-2022; 2261-2278
0268-3768
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.springer.com/article/10.1007/s00170-022-10311-2
info:eu-repo/semantics/altIdentifier/doi/10.1007/s00170-022-10311-2
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Springer London Ltd
publisher.none.fl_str_mv Springer London Ltd
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_ 1844613933516718080
score 13.070432

Publicaciones similares