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dc.contributor.author
Lizzi, Franco
dc.contributor.author
Pradeep, Kashyap
dc.contributor.author
Stanojevic, Aleksandar
dc.contributor.author
Sommadossi, Silvana Andrea
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dc.contributor.author
Poletti, MARIA CECILIA
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dc.date.available
2022-09-26T11:59:21Z
dc.date.issued
2021-04-08
dc.identifier.citation
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
dc.identifier.uri
http://hdl.handle.net/11336/170354
dc.description.abstract
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
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Multidisciplinary Digital Publishing Institute
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by/2.5/ar/
dc.subject
INCONEL ® 718
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HOT DEFORMATION
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GLEEBLE
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RECRYSTALLIZATION
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FOW MODELLING APPROACH
dc.subject.classification
Ingeniería de los Materiales
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dc.subject.classification
Ingeniería de los Materiales
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dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
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dc.title
Hot deformation behavior of a ni‐based superalloy with suppressed precipitation
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2022-09-21T10:28:58Z
dc.identifier.eissn
2075-4701
dc.journal.volume
11
dc.journal.number
4; 605
dc.journal.pagination
1-18
dc.journal.pais
Suiza
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dc.journal.ciudad
Basilea
dc.description.fil
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
dc.description.fil
Fil: Pradeep, Kashyap. Graz University Of Technology.; Austria. Christian Doppler Laboratory for Design of High-Performance Alloys by Thermomechanical Processing; Austria
dc.description.fil
Fil: Stanojevic, Aleksandar. Voestalpine Böhler Aerospace; Austria
dc.description.fil
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
dc.description.fil
Fil: Poletti, MARIA CECILIA. Christian Doppler Laboratory for Design of High-Performance Alloys by Thermomechanical Processing; Austria. Graz University Of Technology.; Austria
dc.journal.title
Metals
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.mdpi.com/2075-4701/11/4/605
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.3390/met11040605
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