Analysis of the mesodefects characteristics formed on deformation facets as a result of the interaction of localized shear bands with grain boundaries

Analysis of the mesodefects characteristics formed on deformation facets as a result of the interaction of localized shear bands with grain boundaries

The paper analyzes the relationship between the parameters of deformation facets formed as a result of the passage of a localized shear band or slip band through the initial medium- or high-angle grain boundary during plastic deformation of polycrystalline materials. Two models of facet formation ar...

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1. Verfasser: Kirikov, S. V.
Format: Tagungsbericht
Sprache:eng
Schlagworte:
Crystallography
Edge dislocations
Grain boundaries
Mathematical models
Parameters
Plastic deformation
Shear bands
Slip planes
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description The paper analyzes the relationship between the parameters of deformation facets formed as a result of the passage of a localized shear band or slip band through the initial medium- or high-angle grain boundary during plastic deformation of polycrystalline materials. Two models of facet formation are proposed: a discrete model in which the deformation in the band occur by the movement of lattice dislocations in parallel slip planes and a model in which the deformation is considered as the movement of continually and uniformly distributed virtual dislocations in the band. The dependences of the strength of mesodefects forming on deformation facets as a result of the passage of shear bands on the crystallographic and geometric parameters of the model are obtained.
doi_str_mv 10.1063/5.0135685
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subjects Crystallography
Edge dislocations
Grain boundaries
Mathematical models
Parameters
Plastic deformation
Shear bands
Slip planes
title Analysis of the mesodefects characteristics formed on deformation facets as a result of the interaction of localized shear bands with grain boundaries
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