Coercive Force as an Indicator of Structural Changes in the Heat Treatment of Amorphous and Nanocrystalline Alloys on the Example of Fast-Quenched Fe-Cu-Nb-Si-B Tapes

The potential of coercive force as a structurally sensitive characteristic for amorphous and nanocrystalline alloys has not been sufficiently disclosed, partly because the physical mechanisms of the occurrence of magnetic hysteresis in such alloys are under active study. The paper shows that the behavior of the coercive force during heat treatment of Fe-Cu-Nb-Si-B alloys in both the amorphous and nanocrystalline states reflects more subtle processes in changing their structure than those that can be observed by traditional methods, for example, scanning calorimetry.