Optimum Regime of Heat Treatment of Soft Magnetic Amorphous Materials

The influence of Fe
_72.5
Cu
₁
Nb
₂
Mo
_1.5
Si
₁₄
B
₉
nanocrystalline alloy annealing temperature on the structure and magnetic properties has been investigated. The heat treatment temperature of nanocrystalline soft magnetic alloy Fer
_2.5
Cu
₁
Nb
₂
Mo
_1.5
Si
₁₄
B
₉
, which allows reaching the maximum value of the initial magnetic permeability, was found to be 15-20° higher than that ensuring the minimum coercive force. The relation between the numerical values of the coercive force, the initial magnetic permeability and the magnetic hysteresis loop rectangularity factor allows optimizing the mode of nanocrystalline alloy heat treatment.