| Issue |
EPJ Web Conf.
Volume 151, 2017
16th International Conference on Liquid and Amorphous Metals (LAM-16)
|
|
|---|---|---|
| Article Number | 05001 | |
| Number of page(s) | 10 | |
| Section | Modelling / Simulations | |
| DOI | https://doi.org/10.1051/epjconf/201715105001 | |
| Published online | 21 August 2017 | |
https://doi.org/10.1051/epjconf/201715105001
Disorder trapping by rapidly moving phase interface in an undercooled liquid
1 Friedrich-Schiller-Universität Jena, Physikalisch-Astronomische Fakultät, D-07743 Jena, Germany
2 Institute of Nanotechnology, Karlsruhe Institute of Technology, 76344 Eggenstein-Leopoldshafen, Germany
3 Ural Federal University, Laboratory of Multi-Scale Mathematical Modeling, 620000 Ekaterinburg, Russian Federation
* e-mail: peter.galenko@uni-jena.de
Published online: 21 August 2017
Non-equilibrium phenomena such as the disappearance of solute drag, the origin of solute trapping and evolution of disorder trapping occur during fast transformations with originating metastable phases [D.M. Herlach, P.K. Galenko, D. Holland-Moritz, Metastable solids from undrercooled melts (Elsevier, Amsterdam, 2007)]. In the present work, a theoretical investigation of disorder trapping by a rapidly moving phase interface is presented. Using a model of fast phase transformations, a system of governing equations for the diffusion of atoms, and the evolution of both long-range order parameter and phase field variable is formulated. First numerical solutions are carried out for a congruently melting binary alloy system.
© The Authors, published by EDP Sciences, 2017
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