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Kinetics of interstitial segregation in Cottrell atmospheres and grain boundaries
- 1.0449671 - ÚFM 2016 RIV GB eng J - Journal Article
Svoboda, Jiří - Zickler, G. A. - Kozeschnik, E. - Fischer, F. D.
Kinetics of interstitial segregation in Cottrell atmospheres and grain boundaries.
Philosophical Magazine Letters. Roč. 95, č. 9 (2015), s. 458-465. ISSN 0950-0839. E-ISSN 1362-3036
R&D Projects: GA ČR(CZ) GA15-06390S
Institutional support: RVO:68081723
Keywords : segregation * grain boundaries * dislocations * simulation * thermodynamic extremal principle
Subject RIV: BJ - Thermodynamics
Impact factor: 0.918, year: 2015
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.
Permanent Link: http://hdl.handle.net/11104/0251183
Number of the records: 1