Enhancement of glass-forming ability of FeCoNiBSiNb bulk glassy alloys with superhigh strength and good soft-magnetic properties

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	Enhancement of glass-forming ability of FeCoNiBSiNb bulk glassy alloys with superhigh strength and good soft-magnetic properties
	B. L. Shen; C. T. Chang; Z. F. Zhang; A. Inoue
	2007
发表期刊	Journal of Applied Physics
ISSN	0021-8979
卷号	102 期号:2
摘要	The effect of Zr addition on the glass-forming ability (GFA) of FeCoNiBSiNb glassy alloys in [(Fe0.6Co0.3Ni0.1)(0.75)B0.2Si0.05](96-x)Nb4Zrx system was investigated. In addition to slight increases of glass transition temperature from 818 to 822 K and supercooled liquid region from 60 to 65 K, the 1 at. % Zr addition was found to be effective in approaching alloy to a eutectic point as well as decreasing liquidus temperature from 1427 to 1400 K, resulting in an increase in GFA. By copper mold casting, [(Fe0.6Co0.3Ni0.1)(0.75)B0.2Si0.05](95)Nb4Zr1 bulk glassy alloys (BGAs) with diameters in the range up to 6 mm were produced. The BGA exhibits a superhigh fracture strength of 4180 MPa, and Young's modulus of 200 GPa, combined with an elastic strain of 0.02. The glassy alloy exhibits good soft-magnetic properties as well, i.e., rather high saturation magnetization of 1.1 T, low coercive force of 2 A/m, and high permeability of 16 700 at 1 kHz under a field of 1 A/m. The reason why only 1 at. % Zr is effective in improving GFA and the fracture mechanisms during compression of this Fe-based BGA were discussed. (C) 2007 American Institute of Physics.
部门归属	tohoku univ, inst mat res, sendai, miyagi 9808577, japan. chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china.;shen, bl (reprint author), tohoku univ, inst mat res, sendai, miyagi 9808577, japan;shen@imr.tohoku.ac.jp
关键词	High Saturation Magnetization Supercooled Liquid Region Metallic Glasses Nanocrystalline Alloys Mechanical-properties Functional-properties Elastic-constants Amorphous-alloys Copper Mold Fracture
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WOS记录号	WOS:000248485100033
引用统计	被引频次：36[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/33801
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	B. L. Shen,C. T. Chang,Z. F. Zhang,et al. Enhancement of glass-forming ability of FeCoNiBSiNb bulk glassy alloys with superhigh strength and good soft-magnetic properties[J]. Journal of Applied Physics,2007,102(2).
APA	B. L. Shen,C. T. Chang,Z. F. Zhang,&A. Inoue.(2007).Enhancement of glass-forming ability of FeCoNiBSiNb bulk glassy alloys with superhigh strength and good soft-magnetic properties.Journal of Applied Physics,102(2).
MLA	B. L. Shen,et al."Enhancement of glass-forming ability of FeCoNiBSiNb bulk glassy alloys with superhigh strength and good soft-magnetic properties".Journal of Applied Physics 102.2(2007).