The equilibrium vacancy concentration in body-centred cubic substitutional-interstitial alloys was calculated taking into account thermal redistribution of the interstitial component in different types of interstices. The conditions where this effect gave rise to a decrease or increase in vacancy concentration were formulated.

The Effect of Thermal Redistribution of Various Interstitial Impurities on Equilibrium Vacancy Concentration in BCC Substitutional-Interstitial Alloys. V.A.Volkov, S.I.Masharov: Russian Physics Journal, 2007, 50[4], 400-4