The Selfconsistency of the Interface Atomic Relief and the Kinetics of Material Exchange between the Solid and Liquid or Gas Phases

Yu. V. Alekseev^a, G. Yu. Alekseev^b, and V. A. Bityurin^b

^a Karpov Institute of Physical Chemistry, Vorontsovo Pole 10, Moscow, 103064 Russia

^b Institute of High Temperatures, Russian Academy of Sciences, Moscow, Russia

Received September 7, 2005

Abstract — Analyzing and clarifying the basic concepts of the statistical method in the theory of material exchange between the solid (ordered) and liquid (disordered) phases noticeably modifies the problem of the metal dissolution and deposition. Taking a surface position of an atom and accordingly the number of its closest neighbors in the phase as an elementary object of statistics, one can derive a system of kinetic equations relating the concentration of diverse positions. Solving the system in a steady-state case provides a selfconsistent description of the topography of the atomic relief and the metal dissolution rate. The problem is solved for a perfect crystal, but the method proposed enables one to formulate and solve the problems of the metal corrosion in the presence of linear and point-wise defects.

PACS numbers: 68.08.-p; 68.35.Ct; 82.45.Jn

DOI: 10.1134/S0033173207030034