Mechanism of Subgrains Formation in Metals Induced by Creep

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F03%3A01088048" target="_blank" >RIV/68407700:21110/03:01088048 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21340/03:01088048
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Mechanism of Subgrains Formation in Metals Induced by Creep
Original language description
It has been proposed to explain the formation of subgains as a result of a trend to reduce the number of active slip systems by periodic lattice rotations and in that way to avoid energetically more costly multi slip. The trend to a subgrain formation istreated in the framework of continuum mechanics as instability against internal bending. The model is analysed for the case of plane strain symmetric double slip. It is shown that the evolution of a quasi-regular arrangement of regions with differing slip activity is a necessary consequence of a minimization of the incremental energy under imposed loading conditions. The subgrain boundaries then accommodate the resulting mismatch in lattice rotations. The basic idea follows Biot's general theory of inhomogeneous deformation modes (the internal bending) treated as strain instabilities in pre-stressed solids
Czech name
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Czech description
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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
2003
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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