Soft-ferromagnetic bulk glassy alloys with large magnetostriction and high glass-forming ability
Soft-ferromagnetic bulk glassy alloys with large magnetostriction and high glass-forming ability
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DOI：
10.1063/1.3654397
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发表时间：
2011-10
期刊：
影响因子：
1.6
通讯作者：
Jiawei Li;H. Men;B. Shen
中科院分区：
文献类型：
--
作者：
Jiawei Li;H. Men;B. Shen
研究了Dy的添加对FeDyBSiNb非晶合金的玻璃形成能力（GFA）、磁致伸缩、软磁性能和断裂强度的影响。Dy的加入不仅使合金的过冷液相区从55 K增加到100 K，而且使合金接近共晶点，使饱和磁致伸缩系数（λ s）增加。相应地，生产出直径达4 mm的块体玻璃合金（BGA）棒，其表现出高达65×10-6的大λ s。此外，BGA系统具有4000 MPa的超高断裂强度，结合良好的软磁性能。
The effect of Dy addition on the glass-forming ability(GFA),magnetostriction as well as soft-magnetic properties and fracture strength in FeDyBSiNb glassy alloys was investigated. In addition to the increase of supercooled liquid region from 55 to 100 K, the addition of Dy is effective in approaching alloy to an eutectic point and increasing the saturation magnetostrction (λ s ). Accordingly, bulk glassy alloy (BGA) rods with diameters up to 4 mm were produced, which exhibit a large λ s as high as 65×10-6. Besides, the BGA system exhibits superhigh fracture strength of 4000 MPa, combined with good soft-magnetic properties.