| Popis: |
The quench-enhanced ordering effects in Fe 50-Ni 50 are studied by means of measurements of electrical resistivity, Mossbauer effect and induced anisotropy energy. From the change of resistivity and Mossbauer spectra observed after isothermal annealings between 100 and 300 °C it is suggested that two different processes probably occur in the quenched alloy: partial ordering and some clustering or precipitation of iron-rich regions possibly corresponding to a very small fraction of an α-Fe phase. Furthermore, the very high magnetic anisotropy energyKu (< 104 erg/cm3) induced by magnetic annealing at 300 °C, and the experimentally observedKu temperature dependence seem to confirm the formation of a small quantity of α-Fe phase precipitations, or in any case of iron-rich clusters. |
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