Influence of additive elements Nb and Mo on the crystallization process of amorphous alloy Fe76.5Cu1Si13.5B9

被引：9
作者：
Zhang, JW
Zhang, XY [1 ]
Xiao, FR
Liu, JH
Zheng, YZ
机构：
[1] Yanshan Univ, Dept Mat Engn, Qinhuangdao 066004, Peoples R China
[2] Chinese Acad Sci, Inst Phys, Beijing 100080, Peoples R China
来源：
MATERIALS LETTERS | 1998年 / 36卷 / 1-4期
关键词：
nanocrystalline alloy; activation energy of crystallization; additive elements;
D O I：
10.1016/S0167-577X(98)00032-9
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The influence of additive elements Nh and Mo on the crystallization process of the amorphous alloy Fe76.5Cu1Si13.5B9 have been investigated by means of a Differential Scanning Calorimeter (DSC), X-ray Diffraction (XRD) and Transmission Electron Microscopy (TEM). Compared with the Fe76.5Cu1Si13.5B9 alloy, the alloy with addition of Nb or Mo, Fe73.5Cu1M3Si13.5B9 (M = Nb, Mo), has a unique crystallization process. The activation energy of crystallization of the alloy with addition of Nb, Fe73.5Cu1Nb3Si13.5B9, during the beginning stage of crystallization is the smallest, it increases with increasing crystallized fraction and then shows a larger value (500 kJ/mol) in the range of crystallized fraction of 25%-90%. The crystallization process of the alloy with addition of Mo, Fe73.5Cu1Mo3Si13.5B9, is similar to that of Fe73.5Cu1Nb3Si13.5B9 alloy, but the increase of activation energy in the alloy with crystallized fraction is smaller. (C) 1998 Elsevier Science B.V. All rights reserved.
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页码：223 / 228
页数：6
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