Transformation of potential of Gibbs in relation to the analisis of phase transformations in final volumes of metal

Y.P. Aganaev1, A.M. Guriev2, B.D. Lygdenov1, V.A. Butukhanov1
1East-Siberian state University of technology and management, Klyuchevskaya str. 40, 670013, Ulan-Ude, Russian Federation
2I.I. Polzunov`s Altai state technical University, Pr. Lenina 46, 656038, Barnaul, Russian Federation
Abstract
 In this paper authors show by the analysis the change in the free energy of the phase transitions.
In phase transitions observed release of the latent heat of crystallization, the redistribution of solute in the system and the formation of the surface of the new phase.
Localization of latent heat of crystallization on the phase boundary leads to a significant overheating surface of the solid phase.
In this regard, a more probable mechanism of crystallization, this occurs at lower values of the specific Gibbs potential.
This is accompanied by the cost of thermal energy on the ordering of the structure, redistribution of substance, the formation of new interfaces.
Received: 18 February 2014   Revised: 16 March 2014   Accepted: 31 March 2014
Views: 94   Downloads: 11
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