V.S. Pokatlov, N.B. Djakonova, T.G. Dmitrieva, V.V. Pokatilov, A.J. Konovalova, A.V. Sklemin, K.M. Konkin

Study of short-term annealings above the crystallization temperatures of amorphous samples of Fe85B15 and Fe77B23 alloys has been measured by Mossbauer effect and a X-ray methods. It has been shown that in samples of Fe85B15 alloy above temperature of the full crystallisation the nanocrystals of α-Fe of a size 40± 3 nanometers, nanocrystals of tetragonal (t) and orthorhombic (o) phases Fe3B of a size 60± 3 nanometers are formed. Change of the boron content of in alloys changes a composition of nanocrystal samples. At magnification of the boron content of leads to phase inhibition of nanocrystals of o - Fe₃B phase in alloy Fe₇₇B₂₃.