Thermal stability and magnetic properties of amorphous Fe-based alloys with significant supercooled liquid region

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	Thermal stability and magnetic properties of amorphous Fe-based alloys with significant supercooled liquid region
	Xu, M ; Quan, MX ; Hu, ZQ ; Cheng, LZ ; He, KY
通讯作者	Xu, M()
	2002-02-28
发表期刊	JOURNAL OF ALLOYS AND COMPOUNDS
ISSN	0925-8388
卷号	334 页码:238-242
摘要	Fe62Co7NbxZr10-xB20 (x = 0-6 at.%), amorphous alloys can be synthesized by melt spinning. The Fe-based metallic glasses show a rather wide supercooled liquid region before crystallization. The maximum supercooled liquid region is as large as 78.7 K for the alloy containing 4 at.% Nb. The addition of 2-4 at.% Nb causes an extension of the supercooled liquid region and an improvement of the thermal stability. The crystallization of the Fe-based alloys takes place through a single exothermic reaction, accompanied by the simultaneous precipitation of more than three crystalline phases such as alpha-Fe, Fe2Zr and ZrB2. The necessity of atomic rearrangements on a long-range scale plays an important role in the retardation of the crystallization reaction, which seems to result in the increase in the thermal stability of the supercooled liquid. The Fe-based glassy alloys exhibit soft ferromagnetic properties. The replacement of Zr by Nb causes a monotonous decrease in saturation magnetization. The saturated magnetostriction of the Fe-based glasses exhibits a relatively low value. There is no large change in saturation magnetization with the annealing temperature while the coercive force is slightly lowered and soft magnetic properties are improved by annealing treatment below the crystallization onset temperature. The devitrification leads to a remarkable increase in both saturation magnetization and coercive force. (C) 2002 Elsevier Science B.V. All rights reserved.
关键词	transition metal alloys amorphous materials rapid quenching thermal analysis magnetic measurements
收录类别	SCI
语种	英语
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000173810700038
出版者	ELSEVIER SCIENCE SA
引用统计	被引频次：10[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/321006/115090
专题	中国科学院金属研究所
通讯作者	Xu, M
作者单位	1.Chinese Acad Sci, Met Res Inst, State Key Lab RSA, Shenyang 110016, Peoples R China 2.Northeastern Univ, Sch Met & Mat, Shenyang 110004, Peoples R China
推荐引用方式 GB/T 7714	Xu, M,Quan, MX,Hu, ZQ,et al. Thermal stability and magnetic properties of amorphous Fe-based alloys with significant supercooled liquid region[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2002,334:238-242.
APA	Xu, M,Quan, MX,Hu, ZQ,Cheng, LZ,&He, KY.(2002).Thermal stability and magnetic properties of amorphous Fe-based alloys with significant supercooled liquid region.JOURNAL OF ALLOYS AND COMPOUNDS,334,238-242.
MLA	Xu, M,et al."Thermal stability and magnetic properties of amorphous Fe-based alloys with significant supercooled liquid region".JOURNAL OF ALLOYS AND COMPOUNDS 334(2002):238-242.