Ordering kinetics in bcc alloys with allowance for diffusion processes |
| |
Authors: | K V Gumennyk L I Stefanovich E P Feldman |
| |
Institution: | (1) Galkin Institute of Physics and Engineering, National Academy of Sciences of Ukraine, 72 Rosa Luxembourg st., Donetsk, 83114, Ukraine;(2) Donetsk Institute for Physics of Mining Processes, National Academy of Sciences of Ukraine, 72 Rosa Luxembourg st., Donetsk, 83114, Ukraine |
| |
Abstract: | The kinetics of inhomogeneous ordering in binary bcc substitution alloys of arbitrary stoichiometry is considered with the account for for diffusion processes. A system of kinetic equations describing the joint evolution of the occupancies of two sublattices of a bcc lattice is derived using a phenomenological approach. It is shown that, even within the mean-field approximation, this approach allows one to describe simultaneously the processes of establishment of the long-range order and diffusion of the alloy components. Numerical analysis of the obtained system of equations showed that quick onset of long-range order first occurs, which is followed by slow diffusion of the alloy components. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|