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基于Slater-Pauling曲线,运用“元素替代”成分设计法则,通过单辊旋淬工艺成功制备出Fe69Co8Nb7-xVxB15Cu1(x=0,2,5,7)非晶合金条带。利用XRD、TEM和DSC对合金系的非晶形成能力、热稳定性进行研究,并通过PPMS和B-H磁滞回线仪研究合金系的软磁性能。结果表明:随着V含量的增加,合金系的非晶形成能力、热稳定性和矫顽力逐渐降低,而饱和磁感应强度、居里温度逐渐增高;当x=2时非晶合金具有最宽两次晶化温度区间,热处理温区宽达225.9℃;当x=7时非晶合金具有最佳高温软磁性能,其饱和磁感应强度为0.96 T,矫顽力仅为8.95 A/m,而居里温度高达TC=349.42℃。
Based on the Slater-Pauling curve, the Fe69Co8Nb7-xVxB15Cu1 (x = 0, 2, 5, 7) amorphous alloy ribbon was successfully prepared by the single- The amorphous formability and thermal stability of the alloys were investigated by XRD, TEM and DSC. The soft magnetic properties of the alloys were also studied by PPMS and B-H hysteresis loops. The results show that with the increase of V content, the amorphous formability, thermal stability and coercivity decrease gradually, but the saturation magnetic flux density and Curie temperature increase gradually. When x = 2, the amorphous alloy has the widest The crystallization temperature range of twice is 225.9 ℃. When x = 7, the amorphous alloy has the best high temperature soft magnetic property, the saturation magnetic induction intensity is 0.96 T and the coercive force is only 8.95 A / m, Curie temperature up to TC = 349.42 ℃.