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采用单辊快淬法制备(Fe1-xCox)76Zr9B15(x=0,0.25,0.5)非晶合金薄带,并对3种合金进行不同温度热处理。利用差热分析仪(DTA)、X射线衍射仪(XRD)和振动样品磁强计(VSM)研究3种合金的晶化行为、微观结构和磁性能。结果表明,Fe76Zr9B15、Fe57Co19Zr9B15和Fe38Co38Zr9B15合金的晶化激活能分别为363.50、434.86和536.33 k J/mol。Fe76Zr9B15非晶合金的初始晶化产物为Fe23B6型相和α-Fe相,Fe57Co19Zr9B15非晶合金的初始晶化产物为α-Mn型相和α-Fe(Co)相,Fe38Co38Zr9B15非晶合金的初始晶化产物为α-Fe(Co)相。随着热处理温度的增加,(Fe1-xCox)76Zr9B15(x=0,0.25,0.5)合金的矫顽力随各自晶化产物的不同而发生改变。
(Fe1-xCox) 76Zr9B15 (x = 0,0.25,0.5) amorphous alloy ribbons were prepared by single roller quenching method, and the three alloys were heat treated at different temperatures. The crystallization behavior, microstructure and magnetic properties of the three alloys were investigated by differential thermal analyzer (DTA), X-ray diffraction (XRD) and vibrating sample magnetometer (VSM) The results show that the crystallization activation energies of Fe76Zr9B15, Fe57Co19Zr9B15 and Fe38Co38Zr9B15 alloys are 363.50, 434.86 and 536.33 kJ / mol, respectively. The initial crystallization products of Fe76Zr9B15 amorphous alloy are Fe23B6 phase and α-Fe phase. The initial crystallization products of Fe57Co19Zr9B15 amorphous alloy are α-Mn phase and α-Fe (Co) phase. The initial crystallization of Fe38Co38Zr9B15 amorphous alloy The product is an α-Fe (Co) phase. With the increase of heat treatment temperature, the coercivity of (Fe1-xCox) 76Zr9B15 (x = 0,0.25,0.5) alloy changes with the different crystallization products.