ON THE SHORT-RANGE ORDER IN THE FE84B10C6 AMORPHOUS ALLOY

Differential scanning calorimetry (DSC), nuclear magnetic resonance (N MR) and Mossbauer effect (ME) experiments have been carried out in ord er to study the short-range order (SRO) in the Fe84B10C6 amorphous all oy. NMR provides clear evidence for the existence of both body-centere d tetragonal Fe3B-like and orthorhombic Fe3B-like SRO in the as-quench ed alloy. The NMR results are used as a reference to determine the opt imal heat treatment conditions under which the SRO existing in the as- quenched alloy nucleates and grows without undergoing a phase transiti on. It was found that when the alloy is annealed at the onset temperat ure for the second stage of the crystallization process, which corresp onds to the crystallization initiation point for the SRO in the amorph ous alloys, the crystallized precipitates have structures similar to t hat of the SRO originally existing in the as-quenched alloy.