Hot deformation behavior of a ni‐based superalloy with suppressed precipitation

Autores
Lizzi, Franco; Pradeep, Kashyap; Stanojevic, Aleksandar; Sommadossi, Silvana Andrea; Poletti, MARIA CECILIA
Año de publicación
2021
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Abstract:Inconel ® 718 is a well-known nickel-based super-alloy used for high-temperature applicationsafter thermomechanical processes followed by heat treatments. This work describes theevolution of the microstructure and the stresses during hot deformation of a prototype alloy namedIN718WP produced by powder metallurgy with similar chemical composition to the matrix ofInconel ® 718. Compression tests were performed by the thermomechanical simulator Gleeble3800 in a temperature range from 900 to 1025 °C, and strain rates scaled from 0.001 to 10 s. Flow curves of IN718WP showed similar features to those of Inconel ® 718. The relative stress softening of the IN718WP was comparable to standard alloy Inconel ® 718 for the highest strain rates. Large stress softening at low strain rates may be related to two phenomena: the fast recrystallization rate, and the coarsening of micropores driven by diffusion. Dynamic recrystallization grade and grain size were quantified using metallography. The recrystallization grade increased as the strain rate decreased, although showed less dependency on the temperature. Dynamic recrystallization occurred after the formation of deformation bands at strain rates above 0.1 s-1 and after the formation of subgrains when deforming at low strain rates. Recrystallized grains had a large number of sigma 3 boundaries, and their percentage increased with strain rate and temperature. The calculated apparent activation energy and strain rate exponent value were similar to those found for Inconel ® 718 when deforming above the solvus temperature.Keywords: ; hot deformation; Gleeble; recrystallization; flow modelling approach
Fil: Lizzi, Franco. Universidad Nacional del Comahue; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Confluencia. Instituto de Investigación En Tecnologías y Ciencias de la Ingeniería. Universidad Nacional del Comahue. Instituto de Investigación En Tecnologías y Ciencias de la Ingeniería; Argentina. Christian Doppler Laboratory for Design of High-Performance Alloys by Thermomechanical Processing; Austria
Fil: Pradeep, Kashyap. Graz University Of Technology.; Austria. Christian Doppler Laboratory for Design of High-Performance Alloys by Thermomechanical Processing; Austria
Fil: Stanojevic, Aleksandar. Voestalpine Böhler Aerospace; Austria
Fil: Sommadossi, Silvana Andrea. Universidad Nacional del Comahue; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Confluencia. Instituto de Investigación En Tecnologías y Ciencias de la Ingeniería. Universidad Nacional del Comahue. Instituto de Investigación En Tecnologías y Ciencias de la Ingeniería; Argentina
Fil: Poletti, MARIA CECILIA. Christian Doppler Laboratory for Design of High-Performance Alloys by Thermomechanical Processing; Austria. Graz University Of Technology.; Austria
Materia
INCONEL ® 718
HOT DEFORMATION
GLEEBLE
RECRYSTALLIZATION
FOW MODELLING APPROACH
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:11336/170354
Acceder
id CONICETDig_89730835fbc5e4943530104f5f2ab970
oai_identifier_str oai:ri.conicet.gov.ar:11336/170354
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Hot deformation behavior of a ni‐based superalloy with suppressed precipitationLizzi, FrancoPradeep, KashyapStanojevic, AleksandarSommadossi, Silvana AndreaPoletti, MARIA CECILIAINCONEL ® 718HOT DEFORMATIONGLEEBLERECRYSTALLIZATIONFOW MODELLING APPROACHhttps://purl.org/becyt/ford/2.5https://purl.org/becyt/ford/2Abstract:Inconel ® 718 is a well-known nickel-based super-alloy used for high-temperature applicationsafter thermomechanical processes followed by heat treatments. This work describes theevolution of the microstructure and the stresses during hot deformation of a prototype alloy namedIN718WP produced by powder metallurgy with similar chemical composition to the matrix ofInconel ® 718. Compression tests were performed by the thermomechanical simulator Gleeble3800 in a temperature range from 900 to 1025 °C, and strain rates scaled from 0.001 to 10 s. Flow curves of IN718WP showed similar features to those of Inconel ® 718. The relative stress softening of the IN718WP was comparable to standard alloy Inconel ® 718 for the highest strain rates. Large stress softening at low strain rates may be related to two phenomena: the fast recrystallization rate, and the coarsening of micropores driven by diffusion. Dynamic recrystallization grade and grain size were quantified using metallography. The recrystallization grade increased as the strain rate decreased, although showed less dependency on the temperature. Dynamic recrystallization occurred after the formation of deformation bands at strain rates above 0.1 s-1 and after the formation of subgrains when deforming at low strain rates. Recrystallized grains had a large number of sigma 3 boundaries, and their percentage increased with strain rate and temperature. The calculated apparent activation energy and strain rate exponent value were similar to those found for Inconel ® 718 when deforming above the solvus temperature.Keywords: ; hot deformation; Gleeble; recrystallization; flow modelling approachFil: Lizzi, Franco. Universidad Nacional del Comahue; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Confluencia. Instituto de Investigación En Tecnologías y Ciencias de la Ingeniería. Universidad Nacional del Comahue. Instituto de Investigación En Tecnologías y Ciencias de la Ingeniería; Argentina. Christian Doppler Laboratory for Design of High-Performance Alloys by Thermomechanical Processing; AustriaFil: Pradeep, Kashyap. Graz University Of Technology.; Austria. Christian Doppler Laboratory for Design of High-Performance Alloys by Thermomechanical Processing; AustriaFil: Stanojevic, Aleksandar. Voestalpine Böhler Aerospace; AustriaFil: Sommadossi, Silvana Andrea. Universidad Nacional del Comahue; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Confluencia. Instituto de Investigación En Tecnologías y Ciencias de la Ingeniería. Universidad Nacional del Comahue. Instituto de Investigación En Tecnologías y Ciencias de la Ingeniería; ArgentinaFil: Poletti, MARIA CECILIA. Christian Doppler Laboratory for Design of High-Performance Alloys by Thermomechanical Processing; Austria. Graz University Of Technology.; AustriaMultidisciplinary Digital Publishing Institute2021-04-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/170354Lizzi, Franco; Pradeep, Kashyap; Stanojevic, Aleksandar; Sommadossi, Silvana Andrea; Poletti, MARIA CECILIA; Hot deformation behavior of a ni‐based superalloy with suppressed precipitation; Multidisciplinary Digital Publishing Institute; Metals; 11; 4; 605; 8-4-2021; 1-182075-4701CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/2075-4701/11/4/605info:eu-repo/semantics/altIdentifier/doi/10.3390/met11040605info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:10:33Zoai:ri.conicet.gov.ar:11336/170354instacron: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:34982025-10-22 11:10:33.957CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Hot deformation behavior of a ni‐based superalloy with suppressed precipitation
title Hot deformation behavior of a ni‐based superalloy with suppressed precipitation
spellingShingle Hot deformation behavior of a ni‐based superalloy with suppressed precipitation
Lizzi, Franco
INCONEL ® 718
HOT DEFORMATION
GLEEBLE
RECRYSTALLIZATION
FOW MODELLING APPROACH
title_short Hot deformation behavior of a ni‐based superalloy with suppressed precipitation
title_full Hot deformation behavior of a ni‐based superalloy with suppressed precipitation
title_fullStr Hot deformation behavior of a ni‐based superalloy with suppressed precipitation
title_full_unstemmed Hot deformation behavior of a ni‐based superalloy with suppressed precipitation
title_sort Hot deformation behavior of a ni‐based superalloy with suppressed precipitation
dc.creator.none.fl_str_mv Lizzi, Franco
Pradeep, Kashyap
Stanojevic, Aleksandar
Sommadossi, Silvana Andrea
Poletti, MARIA CECILIA
author Lizzi, Franco
author_facet Lizzi, Franco
Pradeep, Kashyap
Stanojevic, Aleksandar
Sommadossi, Silvana Andrea
Poletti, MARIA CECILIA
author_role author
author2 Pradeep, Kashyap
Stanojevic, Aleksandar
Sommadossi, Silvana Andrea
Poletti, MARIA CECILIA
author2_role author
author
author
author
dc.subject.none.fl_str_mv INCONEL ® 718
HOT DEFORMATION
GLEEBLE
RECRYSTALLIZATION
FOW MODELLING APPROACH
topic INCONEL ® 718
HOT DEFORMATION
GLEEBLE
RECRYSTALLIZATION
FOW MODELLING APPROACH
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.5
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Abstract:Inconel ® 718 is a well-known nickel-based super-alloy used for high-temperature applicationsafter thermomechanical processes followed by heat treatments. This work describes theevolution of the microstructure and the stresses during hot deformation of a prototype alloy namedIN718WP produced by powder metallurgy with similar chemical composition to the matrix ofInconel ® 718. Compression tests were performed by the thermomechanical simulator Gleeble3800 in a temperature range from 900 to 1025 °C, and strain rates scaled from 0.001 to 10 s. Flow curves of IN718WP showed similar features to those of Inconel ® 718. The relative stress softening of the IN718WP was comparable to standard alloy Inconel ® 718 for the highest strain rates. Large stress softening at low strain rates may be related to two phenomena: the fast recrystallization rate, and the coarsening of micropores driven by diffusion. Dynamic recrystallization grade and grain size were quantified using metallography. The recrystallization grade increased as the strain rate decreased, although showed less dependency on the temperature. Dynamic recrystallization occurred after the formation of deformation bands at strain rates above 0.1 s-1 and after the formation of subgrains when deforming at low strain rates. Recrystallized grains had a large number of sigma 3 boundaries, and their percentage increased with strain rate and temperature. The calculated apparent activation energy and strain rate exponent value were similar to those found for Inconel ® 718 when deforming above the solvus temperature.Keywords: ; hot deformation; Gleeble; recrystallization; flow modelling approach
Fil: Lizzi, Franco. Universidad Nacional del Comahue; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Confluencia. Instituto de Investigación En Tecnologías y Ciencias de la Ingeniería. Universidad Nacional del Comahue. Instituto de Investigación En Tecnologías y Ciencias de la Ingeniería; Argentina. Christian Doppler Laboratory for Design of High-Performance Alloys by Thermomechanical Processing; Austria
Fil: Pradeep, Kashyap. Graz University Of Technology.; Austria. Christian Doppler Laboratory for Design of High-Performance Alloys by Thermomechanical Processing; Austria
Fil: Stanojevic, Aleksandar. Voestalpine Böhler Aerospace; Austria
Fil: Sommadossi, Silvana Andrea. Universidad Nacional del Comahue; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Confluencia. Instituto de Investigación En Tecnologías y Ciencias de la Ingeniería. Universidad Nacional del Comahue. Instituto de Investigación En Tecnologías y Ciencias de la Ingeniería; Argentina
Fil: Poletti, MARIA CECILIA. Christian Doppler Laboratory for Design of High-Performance Alloys by Thermomechanical Processing; Austria. Graz University Of Technology.; Austria
description Abstract:Inconel ® 718 is a well-known nickel-based super-alloy used for high-temperature applicationsafter thermomechanical processes followed by heat treatments. This work describes theevolution of the microstructure and the stresses during hot deformation of a prototype alloy namedIN718WP produced by powder metallurgy with similar chemical composition to the matrix ofInconel ® 718. Compression tests were performed by the thermomechanical simulator Gleeble3800 in a temperature range from 900 to 1025 °C, and strain rates scaled from 0.001 to 10 s. Flow curves of IN718WP showed similar features to those of Inconel ® 718. The relative stress softening of the IN718WP was comparable to standard alloy Inconel ® 718 for the highest strain rates. Large stress softening at low strain rates may be related to two phenomena: the fast recrystallization rate, and the coarsening of micropores driven by diffusion. Dynamic recrystallization grade and grain size were quantified using metallography. The recrystallization grade increased as the strain rate decreased, although showed less dependency on the temperature. Dynamic recrystallization occurred after the formation of deformation bands at strain rates above 0.1 s-1 and after the formation of subgrains when deforming at low strain rates. Recrystallized grains had a large number of sigma 3 boundaries, and their percentage increased with strain rate and temperature. The calculated apparent activation energy and strain rate exponent value were similar to those found for Inconel ® 718 when deforming above the solvus temperature.Keywords: ; hot deformation; Gleeble; recrystallization; flow modelling approach
publishDate 2021
dc.date.none.fl_str_mv 2021-04-08
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/11336/170354
Lizzi, Franco; Pradeep, Kashyap; Stanojevic, Aleksandar; Sommadossi, Silvana Andrea; Poletti, MARIA CECILIA; Hot deformation behavior of a ni‐based superalloy with suppressed precipitation; Multidisciplinary Digital Publishing Institute; Metals; 11; 4; 605; 8-4-2021; 1-18
2075-4701
CONICET Digital
CONICET
url http://hdl.handle.net/11336/170354
identifier_str_mv Lizzi, Franco; Pradeep, Kashyap; Stanojevic, Aleksandar; Sommadossi, Silvana Andrea; Poletti, MARIA CECILIA; Hot deformation behavior of a ni‐based superalloy with suppressed precipitation; Multidisciplinary Digital Publishing Institute; Metals; 11; 4; 605; 8-4-2021; 1-18
2075-4701
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://www.mdpi.com/2075-4701/11/4/605
info:eu-repo/semantics/altIdentifier/doi/10.3390/met11040605
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 Multidisciplinary Digital Publishing Institute
publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute
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 12.982451

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