Influence of Ni substitution for B on crystallization behavior, microstructure and magnetic properties of FeBCu alloys

Influence of Ni substitution for B on crystallization behavior, microstructure and magnetic properties of FeBCu alloys
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Ni替代B对FeBCu合金结晶行为、显微组织和磁性能的影响

DOI:
10.1016/j.jmmm.2019.02.073
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发表时间:
2019-06
影响因子:
2.7
通讯作者:
F.M. Pan
F.M. Pan
中科院分区:
材料科学3区
文献类型:
--
作者:
X.B. Zhai;Y.G. Wang;L. Zhu;H. Zheng;Y.D. Dai;J.K. Chen;F.M. Pan

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采用穆斯堡尔谱、X射线衍射和磁测量等方法研究了Fe 83 NixB 16 − xCu 1(x= 0,1,2,4)合金的晶化、显微结构和磁性能。Ni对Fe 83 B 16 Cu 1合金中B的替代富集了快淬薄带中的Fe团簇,促进了α-Fe(Ni)的形核,有利于晶化后高体积分数纳米晶的形成。此外,添加1- 2at.% Ni使低HC合金的退火温度范围变宽。通过对快淬Fe_(83)Ni_(12)B_(14)Cu_(11)薄带进行退火处理,获得了饱和磁通密度(BS)为1.83 T、矫顽力(HC)为9.2 A/m的优异磁性能。此外,x = 2的纳米晶合金的饱和磁致伸缩系数(19 ppm)低于无Ni合金的饱和磁致伸缩系数(25 ppm)。
The crystallization, microstructure and magnetic properties of Fe83NixB16−xCu1(x= 0, 1, 2, 4) alloys are investigated by Mössbauer spectroscopy, X-ray diffractometry and magnetometry. The substitution of Ni for B in the Fe83B16Cu1alloy enriches Fe clusters in melt-spun ribbons and promotes the nucleation of α-Fe(Ni), which is beneficial to the formation of high volume fraction of nanocrystals after crystallization. Furthermore, the addition of 1–2 at.% Ni widens the annealing temperature range for the alloys with lowHC. Excellent magnetic properties with high saturation magnetic flux density (BS) of 1.83 T and low coercivity (HC) of 9.2 A/m are obtained by annealing the Fe83Ni2B14Cu1melt-spun ribbons. In addition, the nanocrystalline alloy withx= 2 possesses a lower saturation magnetostriction (19 ppm) than that of the Ni-free alloy (25 ppm).
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