Internal stress and heterogeneous dislocation structure in creep.

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F03%3A07033077" target="_blank" >RIV/68081723:_____/03:07033077 - 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

Internal stress and heterogeneous dislocation structure in creep.

Original language description

The present work deals with the problem of microstructural interpretation of internal stress measured in high-temperature creep by the strain-transient-dip-test technique. The development of microstructure in the course of creep is considered a transition from uniformly distributed dislocations to a well-developed substructure. The substructure is supposed to have a composite character that consists of cell/subgrain boundaries with few dislocations in cell/subgrain interiors. Model equations for the relation of internal stress to parameters of the dislocation structure are discussed and examined in reference to experimental data. An evolution of internal stress in creep, evaluated using different formulas, is compared to the evolution of macroscopically measured internal stress. The use of applied-stress dependences of microstructure parameters permits quite realistic estimates of the values of internal stress in the steady state creep.

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

BM - Solid-state physics and magnetism

OECD FORD branch

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Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2003

Confidentiality

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

Name of the periodical

Philosophical Magazine

ISSN

1478-6435

e-ISSN

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Volume of the periodical

83

Issue of the periodical within the volume

23

Country of publishing house

GB - UNITED KINGDOM

Number of pages

11

Pages from-to

2681-2691

UT code for WoS article

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EID of the result in the Scopus database

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