EBSD Analysis of Orientation Gradients Developed near Grain Boundaries

Detalhes bibliográficos
Autor(a) principal: De Vincentis,Natalia Soledad
Data de Publicação: 2019
Outros Autores: Roatta,Analía, Bolmaro,Raúl Eduardo, Signorelli,Javier Walter
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Materials research (São Carlos. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000100236
Resumo: The local misorientation and orientation gradient development near grain boundaries (GBs) are analyzed in a deep drawing quality steel sheet (AKDQ) subjected to interrupted tensile tests in a notched sample. The microstructure is studied using electron backscatter diffraction (EBSD) with subgrain-level spatial resolution. The evolution of misorientation accumulation for particular GBs was traced in grains located in different zones inside the notch, identifying the effective area of influence of GBs inside the neighboring grains. A local study was performed, and the evolution in misorientation development near GB was investigated. The results show a low correlation between GB width and sharpness of the orientation gradient with the mesoscopic strain, but instead orientation gradients between GB zones and the interior of the grains were observed with increasing strain. The increase in severity observed in some GBs can be related to dislocation pile up development, which reduces the permeability of a boundary to dislocation transmission.
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spelling EBSD Analysis of Orientation Gradients Developed near Grain BoundariesOrientation gradientEBSDPlastic deformationSlip transmissionThe local misorientation and orientation gradient development near grain boundaries (GBs) are analyzed in a deep drawing quality steel sheet (AKDQ) subjected to interrupted tensile tests in a notched sample. The microstructure is studied using electron backscatter diffraction (EBSD) with subgrain-level spatial resolution. The evolution of misorientation accumulation for particular GBs was traced in grains located in different zones inside the notch, identifying the effective area of influence of GBs inside the neighboring grains. A local study was performed, and the evolution in misorientation development near GB was investigated. The results show a low correlation between GB width and sharpness of the orientation gradient with the mesoscopic strain, but instead orientation gradients between GB zones and the interior of the grains were observed with increasing strain. The increase in severity observed in some GBs can be related to dislocation pile up development, which reduces the permeability of a boundary to dislocation transmission.ABM, ABC, ABPol2019-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000100236Materials Research v.22 n.1 2019reponame:Materials research (São Carlos. Online)instname:Universidade Federal de São Carlos (UFSCAR)instacron:ABM ABC ABPOL10.1590/1980-5373-mr-2018-0412info:eu-repo/semantics/openAccessDe Vincentis,Natalia SoledadRoatta,AnalíaBolmaro,Raúl EduardoSignorelli,Javier Waltereng2019-01-08T00:00:00Zoai:scielo:S1516-14392019000100236Revistahttp://www.scielo.br/mrPUBhttps://old.scielo.br/oai/scielo-oai.phpdedz@power.ufscar.br1980-53731516-1439opendoar:2019-01-08T00:00Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)false
dc.title.none.fl_str_mv EBSD Analysis of Orientation Gradients Developed near Grain Boundaries
title EBSD Analysis of Orientation Gradients Developed near Grain Boundaries
spellingShingle EBSD Analysis of Orientation Gradients Developed near Grain Boundaries
De Vincentis,Natalia Soledad
Orientation gradient
EBSD
Plastic deformation
Slip transmission
title_short EBSD Analysis of Orientation Gradients Developed near Grain Boundaries
title_full EBSD Analysis of Orientation Gradients Developed near Grain Boundaries
title_fullStr EBSD Analysis of Orientation Gradients Developed near Grain Boundaries
title_full_unstemmed EBSD Analysis of Orientation Gradients Developed near Grain Boundaries
title_sort EBSD Analysis of Orientation Gradients Developed near Grain Boundaries
author De Vincentis,Natalia Soledad
author_facet De Vincentis,Natalia Soledad
Roatta,Analía
Bolmaro,Raúl Eduardo
Signorelli,Javier Walter
author_role author
author2 Roatta,Analía
Bolmaro,Raúl Eduardo
Signorelli,Javier Walter
author2_role author
author
author
dc.contributor.author.fl_str_mv De Vincentis,Natalia Soledad
Roatta,Analía
Bolmaro,Raúl Eduardo
Signorelli,Javier Walter
dc.subject.por.fl_str_mv Orientation gradient
EBSD
Plastic deformation
Slip transmission
topic Orientation gradient
EBSD
Plastic deformation
Slip transmission
description The local misorientation and orientation gradient development near grain boundaries (GBs) are analyzed in a deep drawing quality steel sheet (AKDQ) subjected to interrupted tensile tests in a notched sample. The microstructure is studied using electron backscatter diffraction (EBSD) with subgrain-level spatial resolution. The evolution of misorientation accumulation for particular GBs was traced in grains located in different zones inside the notch, identifying the effective area of influence of GBs inside the neighboring grains. A local study was performed, and the evolution in misorientation development near GB was investigated. The results show a low correlation between GB width and sharpness of the orientation gradient with the mesoscopic strain, but instead orientation gradients between GB zones and the interior of the grains were observed with increasing strain. The increase in severity observed in some GBs can be related to dislocation pile up development, which reduces the permeability of a boundary to dislocation transmission.
publishDate 2019
dc.date.none.fl_str_mv 2019-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000100236
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392019000100236
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1980-5373-mr-2018-0412
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv ABM, ABC, ABPol
publisher.none.fl_str_mv ABM, ABC, ABPol
dc.source.none.fl_str_mv Materials Research v.22 n.1 2019
reponame:Materials research (São Carlos. Online)
instname:Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
instname_str Universidade Federal de São Carlos (UFSCAR)
instacron_str ABM ABC ABPOL
institution ABM ABC ABPOL
reponame_str Materials research (São Carlos. Online)
collection Materials research (São Carlos. Online)
repository.name.fl_str_mv Materials research (São Carlos. Online) - Universidade Federal de São Carlos (UFSCAR)
repository.mail.fl_str_mv dedz@power.ufscar.br
_version_ 1754212674307096576

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