Direct and Indirect Methods of the Analysis of Interatomic Interaction and Kinetics of a Relaxation of the Short-Range Order in Close-Packed Substitutional (Interstitial) Solid Solutions
V. A. Tatarenko, T. M. Radchenko
G.V. Kurdyumov Institute for Metal Physics, NAS of Ukraine, 36 Academician Vernadsky Blvd., UA-03142 Kyiv, Ukraine
Received: 31.12.2001; final version — 31.05.2002. Download: PDF
Some methods for direct (diffraction and scattering of radiations) and indirect (measurement of a residual resistance, computer simulation, approximated analytical calculations) study of statistical parameters of a correlation in a positional relationship of atoms, their ‘mixing’ energies, thermodynamic characteristics and structure of the short-range order, and also kinetics of its relaxation in substitutional (interstitial) solid solutions are reviewed. The properties of parameters of interaction and short-range order of atoms (long-range, anisotropic, and oscillating natures of their dependences on interatomic distance, and also nonanalyticity of parameters of the corresponding description in reciprocal space) for solutions of both types are illustrated. The state-of-the-art statistical-thermodynamic computational methods for equilibrium values of the short-range order parameters for such binary solutions are considered. With usage of the microscopical theory valid within the framework of the approximation corresponding to the decoupling of the three-particle correlation functions (three-site probabilities), the relationship of time evolution of the short-range order and diffuse scattering of radiations with diffusion of atoms on large intersite spacing interval in substitutional multicomponent solid solutions is analysed. The existing semiphenomenological models of relaxation of the specific residual resistance of substitutional (interstitial) solid solutions in application to the description of data of experimental measurements of its dependence on time are compared.
Keywords: substitutional (interstitial) solid solution, interatomic interactions, mixing (interchange) energy, short-range order, radiation diffuse scattering, residual resistance, relaxation kinetics, correlation uncoupling, ring approximation, modelling by Monte Carlo method.
PACS: 61.72.Bb, 61.72.Cc, 61.72.Dd, 61.72.Hh, 65.40.Gr, 66.30.Dn
Citation: V. A. Tatarenko and T. M. Radchenko, Direct and Indirect Methods of the Analysis of Interatomic Interaction and Kinetics of a Relaxation of the Short-Range Order in Close-Packed Substitutional (Interstitial) Solid Solutions, Usp. Fiz. Met., 3, No. 2: 111–236 (2002) (in Ukrainian), doi: 10.15407/ufm.03.02.111