STRAIN-INDUCED INTERACTION OF INTERSTITIALS WITH SUBSTITUTION ATOMS IN IVA GROUP HCP METALS
The energies of strain-induced (elastic) (O,N,C)-substitution (i-s) interactions are calculated for the hcp IVA group metals α-Ti, α-Zr and α-Hf taking into account the discrete atomic structure of the host lattice. The elastic constants, lattice spacing of the host lattice, and concentration expansion coefficients of the solid solution lattice due to dissolved atoms are used as the input numerical parameters. The interaction oscillates and is of long-range nature. In all solid solutions coordination shells exist where the solute atoms attract each other.