Abstract

Abstract The influence of Mo substitution of Fe on the crystallization behaviour, on the nanocrystalline phase and on the magnetic properties of Fe‒Si‒B‒Cu‒Nb alloys is studied. Differential scanning calorimetry, X-ray diffraction, thermogravimetry and magnetic measurements have been used. Mo additions produce an enhancement of the thermal stability of the amorphous alloy against nanocrystallization, a decrease in the temperature range in which the nanophase exists and a significant lowering of the Curie temperature of both as-cast amorphous alloy and the final boride phase.

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