Self-Organization Model of Localization of Cyclic Strain into PSBs and Formation of Dislocation Wall Structure

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F01%3A01066027" target="_blank" >RIV/68407700:21110/01:01066027 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Self-Organization Model of Localization of Cyclic Strain into PSBs and Formation of Dislocation Wall Structure

Original language description

Development of dislocation structures in cubic metal crystals cyclically deformed in single slip is treated as a self-organization process. The proposed model consists of the crystal plasticity equations, the equation of motion of glide dislocations, andthe balance equation for stored dislocations (dipolar loops). The model incorporates hardening by the loops, sweeping of the loops by glide dislocations, drift of the loops in the stress gradients, the mutual loop interaction, their generation and annihilation. By using analytical methods it is briefly shown that in the early stage of deformation the vein or extended wall structure is formed. In the saturation state when all newly formed dislocations are annihilated strain becomes localized. In the lamellae of concentrated slip (PSBs) the dislocation structure may be but need not to be rearranged. The criterion for rearrangement is specified. The transformation of veins to walls is a typical rearrangement in PSBs

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JL - Fatigue and fracture mechanics

OECD FORD branch

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Project

<a href="/en/project/GA106%2F00%2F1109" target="_blank" >GA106/00/1109: The model of dislocation structure formation based on the theory of continuous distribution of dislocations</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2001

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Materials Science and Engineering A - Structural Materials: Properties, Microstructure and Processing

ISSN

0921-5093

e-ISSN

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Volume of the periodical

309-310

Issue of the periodical within the volume

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Country of publishing house

CH - SWITZERLAND

Number of pages

5

Pages from-to

331-335

UT code for WoS article

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EID of the result in the Scopus database

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