Dislocation model for anelastic transient stage in metals under creep conditions
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F12%3A00387071" target="_blank" >RIV/68081723:_____/12:00387071 - 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
Dislocation model for anelastic transient stage in metals under creep conditions
Original language description
Transient strain was observed in metallic materials at the beginning of creep tests as well as upon any change of the applied stress. This strain is almost fully recoverable when the stress change is reversed. Thus it is based on anelasticity. During this transient stage, the strain rate decreases by three orders of magnitude or even more. Accurate description of the effect is crucial for calculations of potentially dangerous stress concentrations in parts high temperature equipments during changes of their working regime. Nevertheless, the model of the effect is still missing. This work presents physically based model of the reversible transient strain under creep conditions. The model is based on the dislocation links bowing and assume combined viscous glide and climb of dislocations. Results of the model are compared to the published creep curves of various metallic materials.
Czech name
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Czech description
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Classification
Type
D - Article in proceedings
CEP classification
JG - Metallurgy, metal materials
OECD FORD branch
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Result continuities
Project
<a href="/en/project/IAA200410701" target="_blank" >IAA200410701: Transient Effects in Creep at Conditions Leading to Very Low Strain Rates.</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)
Others
Publication year
2012
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Article name in the collection
Creep and Fracture of Engineering Materials and Structure
ISBN
978-4-88903-407-3
ISSN
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e-ISSN
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Number of pages
4
Pages from-to
"B28"
Publisher name
The Japan Institute of Metals
Place of publication
Sendai
Event location
Kyoto
Event date
May 27, 2012
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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