Amorphous alloys Fe81Zr5Nb4B10 and Fe40.5Co40.5Zr5Nb4B10 obtained by melt spinning and subjected to annealing at different temperatures are studied. The activation energy of crystallization of the alloys is determined for different heating rates. It is shown that the primary product of crystallization of amorphous alloy Fe81Zr5Nb4B10 is an α-Fe phase and a phase with a structure of type α-Mn. In the presence of cobalt, the primary product of crystallization of alloy Fe40.5Co40.5Zr5Nb4B10 is an α-Fe(Co) phase. The difference in the crystallization products affects the coercivity.

中文翻译：

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Fe81Zr5Nb4B10 和 Fe40.5Co40.5Zr5Nb4B10 非晶合金的热行为、结晶和磁性能

研究了非晶合金Fe81Zr5Nb4B10和Fe40.5Co40.5Zr5Nb4B10通过熔体纺丝在不同温度下退火得到的非晶合金。对于不同的加热速率，确定合金的结晶活化能。结果表明，非晶合金Fe81Zr5Nb4B10的主要结晶产物为α-Fe相和α-Mn型结构相。在钴存在下，合金 Fe40.5Co40.5Zr5Nb4B10 的主要结晶产物是 α-Fe(Co) 相。结晶产物的差异影响矫顽力。