Volume 133, Number 5, March 2021
|Number of page(s)||5|
|Section||Interdisciplinary Physics and Related Areas of Science and Technology|
|Published online||07 May 2021|
Kinetic phase diagram for a binary system near the transition to diffusionless solidification
Physics Department, Omsk State University, Pr. Mira 55a, Omsk, 644077, Russian Federation
Received: 23 November 2020
Accepted: 25 January 2021
The rapid solidification of a binary mixture in the region of the interface velocities V close to the diffusion speed in the bulk of the liquid phase VD is considered within the framework of the local nonequilibrium approach. In this high-speed region the derivation of the analytical expression for the “temperature-velocity” response function representing kinetic phase diagram is given without using the concept of the equilibrium phase diagram. The modes of movement of the interface both without and with the drag effect are analyzed. It is shown that the drag effect can be accompanied by a local interface temperature maximum at .
PACS: 81.30.Fb – Solidification / 64.70.dm – General theory of the solid-liquid transition / 68.08.-p – Liquid-solid interfaces
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