Formation of bulk metallic glasses in the Fe-M-Y-B (M = transition metal) system

被引：0
|
作者：
Huang, X.M. [1 ]
Chang, C.T. [2 ]
Chang, Z.Y. [1 ]
Wang, X.D. [1 ]
Cao, Q.P. [1 ]
Shen, B.L. [2 ]
Inoue, A. [2 ]
Jiang, J.Z. [1 ]
机构：
[1] International Center for New-Structured Materials (ICNSM), Laboratory of New-Structured Materials, Department of Materials Science and Engineering, Hangzhou, 310027, China
[2] Institute for Material Research, Tohoku University, Sendai, 980-8577, Japan
来源：
Journal of Alloys and Compounds | 2008年 / 460卷 / 1-2期
关键词：
In this work; quaternary Fe72-xMxY6B22 (M = Ni; Co and Mo) bulk metallic glasses (BMGs) have been developed. It is found that a fully amorphous Fe68Mo4Y6B22 cylindrical rod with 6.5 mm in diameter can be prepared by copper mold injection. These alloys have a high glass transition temperature of about 900 K with high fracture strengths up to about 3 GPa although they are still brittle. Magnetic measurements reveal that they are ferromagnetic at ambient temperature with low coercive force of about 2 A/m; saturation magnetization of about 0.7 T and effective permeability of about 7000 at 100 kHz. The newly developed Fe-based quaternary alloys exhibit excellent combination properties: superior glass forming ability (GFA); high glass transition temperature; and soft magnetic properties; which could have potential applications in electronic industries. Furthermore; the effect of Mo addition on GFA in the Fe-Y-B BMG system has been discussed compared with those of Ni and Co additions. © 2007 Elsevier B.V. All rights reserved;
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页码：708 / 713
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