Chemically and Mechanically Driven Creep Due to Generation and Annihilation of Vacancies with Non-ideal Sources and Sinks
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F11%3A00363691" target="_blank" >RIV/68081723:_____/11:00363691 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Alternative languages
Result language
angličtina
Original language name
Chemically and Mechanically Driven Creep Due to Generation and Annihilation of Vacancies with Non-ideal Sources and Sinks
Original language description
The classical concept of Nabarro creep is extended for a general dislocation microstructure. The specific mechanism of the creep consists in generation and annihilation of vacancies at dislocation jogs acting as non-ideal sources and sinks for vacancies.This mechanism causes the climb of dislocations, allowing for local volume and shape change. The final kinetic equations, relating the dislocation microstructure and the local stress state to the creep rate, are derived by means of the thermodynamic extremal principle. Closed-form equations for the creep rate are derived for isotropic polycrystals. Based on the model the creep rate in the ferritic P-91 type steel at very low applied stress is evaluated and compared with experiment.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BJ - Thermodynamics
OECD FORD branch
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Result continuities
Project
<a href="/en/project/GAP204%2F10%2F1784" target="_blank" >GAP204/10/1784: Modelling of diffusional phase transformations in multicomponent systems with multiple stoichiometric phases</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
International Journal of Plasticity
ISSN
0749-6419
e-ISSN
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Volume of the periodical
27
Issue of the periodical within the volume
9
Country of publishing house
US - UNITED STATES
Number of pages
7
Pages from-to
1384-1390
UT code for WoS article
000292428700004
EID of the result in the Scopus database
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