Conditions for the appearance of a stable microcrack in the elastic field of a screened disclination

Conditions for the appearance of a stable microcrack in the elastic field of a screened disclination

The conditions of possible microcrack nucleation and stability in the elastic field of disclinations screened by a free surface, disclinations of the opposite sense, or a distributed ensemble of moving dislocations are considered. The plastic deformation screening the elastic field of a disclination...

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Veröffentlicht in:Russian metallurgy Metally 2016-10, Vol.2016 (10), p.889-894
Hauptverfasser: Sarafanov, G. F., Perevezentsev, V. N.
Format: Artikel
Sprache:eng
Schlagworte:
Chemistry and Materials Science
Disclinations
Elastic deformation
Grain size
Materials Science
Metallic Materials
Microcracks
Nucleation
Physical Foundations of Strength and Plasticity
Plastic deformation
Screening
Surface stability
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container_title Russian metallurgy Metally
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creator Sarafanov, G. F.
Perevezentsev, V. N.
description The conditions of possible microcrack nucleation and stability in the elastic field of disclinations screened by a free surface, disclinations of the opposite sense, or a distributed ensemble of moving dislocations are considered. The plastic deformation screening the elastic field of a disclination is shown to effectively stabilize microcrack growth at a sufficiently large grain size.
doi_str_mv 10.1134/S0036029516100189
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subjects Chemistry and Materials Science
Disclinations
Elastic deformation
Grain size
Materials Science
Metallic Materials
Microcracks
Nucleation
Physical Foundations of Strength and Plasticity
Plastic deformation
Screening
Surface stability
title Conditions for the appearance of a stable microcrack in the elastic field of a screened disclination
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