Effects of yttrium on the formation and magnetic properties of bulk metallic glassy (Fe, Co)-B-Si-Nb alloys

被引:0
|
作者
Wen, Dun-gu [1 ]
Yang, Yuan-zheng [1 ]
Dong, Zhen-jiang [1 ]
Tao, Ping-jun [1 ]
Xie, Zhi-wei [1 ]
Chen, Xian-chao [1 ]
机构
[1] Guangdong Univ Technol, Fac Mat & Energy, Guangzhou 510006, Guangdong, Peoples R China
基金
中国国家自然科学基金;
关键词
bulk metallic glass; glass-forming ability; yttrium; magnetic properties; AMORPHOUS FE70M10B20 M; 4000; MPA; NB; ZR; STRENGTH; CR;
D O I
10.1007/s12613-010-0314-8
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The bulk metallic glassy (BMG) rods of [(Fe(0.5)Co(0.5))(0.72)B(0.192)Si(0.048)Nb(0.04)](100-x)Y(x) (x=0-6) and [(Fe(x)Co(1-x))(0.72)B(0.192)Si(0.048)Nb(0.04)](96)Y(4) (x=0.5-0.8) were prepared by copper mold casting. The structure, thermal stability, and magnetic properties of the samples were studied by X-ray diffraction (XRD), differential scanning calorimetry (DSC), and vibrating sample magnetometer (VSM). Adding 1at% to 6at% of yttrium, the bulk glassy alloy rods of [(Fe(0.5)Co(0.5))(0.72)B(0.192)Si(0.048)Nb(0.04)](100-x)Y(x) (x=0-6) with the diameter of 3 mm were not formed, and the sample with 4at% of yttrium showed less crystalline phase than others. When the Fe/Co atomic ratio was between 5: 5 and 7: 3, the bulk glassy alloy rods of [(Fe(1-x)Co(x))(0.72)B(0.192)Si(0.048)Nb(0.04)](96)Y(4) (x=0.5-0.8) with the diameter of 2 mm were fabricated. In the (Fe, Co)-B-Si-Nb-Y BMGs, when the Fe content increased, the thermal stability, the supercooled liquid region, and the glass-forming ability (GFA) decreased, but the saturation magnetization (Ms) increased.
引用
收藏
页码:331 / 334
页数:4
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