Fe含量对FeSiBPCu合金非晶晶化行为与磁性能的影响

发布时间：2018-03-18 08:22

本文选题：金属材料　切入点：铁基非晶合金　出处：《材料研究学报》2015年04期 　论文类型：期刊论文

【摘要】：用熔体快淬法制备不同Fe含量的Fe Si BPCu非晶合金并进行快速退火处理,对其晶化行为和磁性能进行了深入研究。结果表明:随着Fe含量的增加,Fe Si BPCu合金的表观晶化激活能逐渐降低;Fe Si BPCu合金的整个晶化过程析出相一致,与Fe含量无关;Fex(Si B)96-xP3Cu1(x=80,83 and 85)合金退火后得到均匀的纳米晶组织,晶粒尺寸小于20 nm,但是退火态Fe78Si6B12P3Cu1和Fe75Si8B13P3Cu1的晶粒大小很不均匀,晶粒尺寸范围为5-50 nm;退火态Fe85Si3B8P3Cu1合金表现出优异的软磁性能:矫顽力为12 A·m-1,饱和磁极化强度为1.87 T,在最大磁感应强度为1.7 T时铁损仍低于1.0,远优于广泛使用的退火态Fe78Si9B13和无取向硅钢。
[Abstract]:Fe-Si BPCu amorphous alloys with different Fe content were prepared by melt rapid quenching and treated by rapid annealing. The crystallization behavior and magnetic properties of the alloy were studied in detail. The results show that the activation energy of the apparent crystallization of Fe Si BPCu alloy decreases gradually with the increase of Fe content. The precipitation phase in the whole crystallization process of Fe Si BPCu alloy is consistent. After annealing, uniform nanocrystalline structure was obtained in the alloy, which was independent of Fe content. The grain size of the alloy was less than 20 nm, but the grain size of Fe78Si6B12P3Cu1 and Fe75Si8B13P3Cu1 in annealed state was not uniform. The grain size ranges from 5 to 50 nm, and the annealed Fe85Si3B8P3Cu1 alloy shows excellent soft magnetic properties: coercivity is 12 A 路m -1, saturation polarity is 1.87 T, and iron loss is still below 1.0 when the maximum magnetic induction intensity is 1.7T, which is much better than that of widely used annealing. Fe78Si9B13 and non-oriented silicon steel.
【作者单位】：大连海事大学交通运输装备与海洋工程学院;大连理工大学材料科学与工程学院;东北大学金属材料研究所;
【基金】：国家自然科学基金面上项目51371042 中央高校基本科研业务费之青年骨干教师基金3132015098资助~~
【分类号】：TG139.8

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