DIGM - Entropy balance and free energy release rate

Lyashenko, Yu. A. and Gusak, A. M. (2006) DIGM - Entropy balance and free energy release rate. Defect and Diffusion Forum, Т. 249. pp. 81-90.

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Abstract

A model of alloying in the three-layer thin-film system at the low temperature is constructed. Solid solution formation takes place as a result of the diffusion-induced grain boundary migration (DIGM). The unknown parameters are determined from the set of the equations for: (1) grain boundary diffusion along the moving planar phase boundary; (2) the entropy balance in the region of the phase transformation moving with constant velocity; (3) the maximum rate of the free energy release. We consider the model system with complete solubility of the components. The main parameters are self-consistently determined using thermodynamic and kinetic description in the frame of the regular solution model. The model allows determining the concentration distribution along the planar moving phase boundary, its velocity, the thickness of the forming solid solution layer and the limiting average concentration in this layer.

Item Type:	Article
Uncontrolled Keywords:	diffusion ; digm ; entropy production ; grain boundary diffusion ; interphase boundaries
Subjects:	Фізико-математичні науки
Divisions:	Навчально-науковий інститут інформаційних та освітніх технологій
Depositing User:	Наукова Бібліотека
Date Deposited:	22 Jul 2020 13:36
Last Modified:	15 May 2023 13:18
URI:	https://eprints.cdu.edu.ua/id/eprint/4003

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