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Kinetics of interstitial segregation in Cottrell atmospheres and grain boundaries
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SYSNO ASEP 0449671 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Kinetics of interstitial segregation in Cottrell atmospheres and grain boundaries Author(s) Svoboda, Jiří (UFM-A) RID, ORCID
Zickler, G. A. (AT)
Kozeschnik, E. (AT)
Fischer, F. D. (AT)Number of authors 4 Source Title Philosophical Magazine Letters. - : Taylor & Francis - ISSN 0950-0839
Roč. 95, č. 9 (2015), s. 458-465Number of pages 8 s. Language eng - English Country GB - United Kingdom Keywords segregation ; grain boundaries ; dislocations ; simulation ; thermodynamic extremal principle Subject RIV BJ - Thermodynamics R&D Projects GA15-06390S GA ČR - Czech Science Foundation (CSF) Institutional support UFM-A - RVO:68081723 UT WOS 000361981600003 EID SCOPUS 84942859494 DOI 10.1080/09500839.2015.1087652 Annotation Trapping of interstitial (e.g. carbon) atoms is driven by the reduction in energy in the system. Diffusion of interstitials, together with their trapping in dislocation cores and/or grain boundaries, is studied by the thermodynamic extremal principle. In addition to the total Gibbs energy, a well-established formulation of the total dissipation is applied. Dimension-free evolution equations are derived, whose solution is well approximated by an easy to handle kinetic equation. Cottrell's power law can be verified in the initial stage. Workplace Institute of Physics of Materials Contact Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Year of Publishing 2016
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