Abstract

In this study, on the basis of X-ray-structural data and the measurements of magnetic characteristics (the magnetic permeability, the maximum induction, and the coercive force), we have revealed correlations between modifications of structural and magnetic properties on various types of relaxation annealing. Moreover, by analyzing the correlation functions { A ( S ) and the radial-distribution function} and using values of structural parameters, we investigated the processes of the amorphous-state stabilization, the nucleation, and the growth of the crystalline phase for magnetically soft amorphous cobalt-base alloys obtained by the spinning of melts. We investigated the multicomponent amorphous alloys with the following compositions: Co 57 Ni 10 Fe 5 Si 11 B 17 , Co 67 Fe 3 Cr 3 Si 15 B 12 , and Co 68 Fe 4 Cr 4 Si 13 B 11 . All of these alloys have a virtually zero magnetostriction. The structure was analyzed with invoking the data of molecular-dynamic simulation for binary amorphous alloys Co 1 — x B x and Fe 1 — x B x [1]. For the alloys under consideration at room temperature, we observe a typical diffraction pattern with a pro

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