MAGNETIC PROPERTIES OF THE Fe-BASED AMORPHOUS ALLOYS
Journal Title: Праці Наукового товариства ім. Шевченка - Year 2017, Vol 48, Issue
Abstract
The labile amorphous phase in Fe-based amorphous alloys passes to a metastable equilibrium state through a series of transformations, which are realized, in the first place, due to a change in the compositional (chemical) and topological (geometrical) short-range order of stacking of atoms and a decrease in the free redundant volume. Compositional ordering is connected with the possibility of rearrangement of the nearest neighboring atoms. Its characteristic feature consists of thermal reversibility, which manifests itself in the restoration of values of the Curie points under conditions of a cyclic change in the annealing temperature. Topological changes in the structure of amorphous alloys induce irreversibility of the magnetic properties of specimens, which is connected with a decrease in the fluctuations of local density in the course of annealing.
Authors and Affiliations
Tetiana PEREVERZIEVA, Oksana HERTSYK, Nataliia PANDIAK, Anatolii BORYSIUK
Keywords
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