Počet záznamů: 1  

Kinetics of interstitial segregation in Cottrell atmospheres and grain boundaries

  1. 1. 0449671 - UFM-A 2016 RIV GB eng J - Článek v odborném periodiku
    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
    Grant CEP: GA ČR(CZ) GA15-06390S
    Institucionální podpora: RVO:68081723
    Klíčová slova: segregation * grain boundaries * dislocations * simulation * thermodynamic extremal principle
    Kód oboru RIV: BJ - Termodynamika
    Impakt faktor: 0.918, rok: 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.
    Trvalý link: http://hdl.handle.net/11104/0251183