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I. V. Vernyhora, S. M. Bokoch3, and V. A. Tatarenko
«Modelling of Physical Kinetics of Relaxation in Macroscopically Homogeneous F.C.C.-Ni–Fe Alloys»
897–916 (2012)
PACS numbers: 61.50.Ah, 61.72.Bb, 64.60.De, 64.60.qe, 64.75.Jk, 75.30.Hx, 81.30.-t
In comparison with classical Lifshitz–Slyozov–Wagner’s theory and, where it is possible, with available experimental data, the physical kinetics of evolution of a microstructure of f.c.c.-N³–Fe alloys is simulated by means of the Onsager-type equations of microdiffusion and with the account of the effects caused by magnetic interatomic interactions and elastic interactions of inclusions of phases. Magnetism proper in f.c.c.-N³–Fe alloys essentially influences a tendency to atomic ordering and development of their microstructure; magnetic interactions promote stabilisation of a precipitated phase and dilate an interval of two-phase coexistence. In Elinvar alloys, elastic interactions essentially change morphology of an intermixture of formed phases of the superstructural L10 and L12 types (or of structural A1 type), giving the anisotropic character to the shape of inclusions of phases as well as to their relative spatial arrangement. Meanwhile, for an intermixture of phases of structural A1 type and superstructural L12 type in Permalloys, the anisotropic effects of such interactions are inappreciable.
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