Crystallization and magnetic properties of Fe40Ni38B18Mo4 amorphous alloy

被引：32

作者：

Du, SW ^{[1
]}

Ramanujan, RV ^{[1
]}

机构：

[1] Nanyang Technol Univ, Sch Mat Sci & Engn, Singapore 639798, Singapore

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 2005年 / 351卷 / 37-39期

关键词：

D O I：

10.1016/j.jnoncrysol.2005.07.028

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The crystallization behavior of heat treated amorphous Fe40Ni38B18Mo4 alloy was studied by TEM in order to investigate the suitability of this material as a soft nanostructured magnetic alloy. Significantly, the phases observed during primary and secondary crystallization were nanosized Fe-Ni solid solution and (FeNiMo)(23)B-6, respectively. The primary crystals had an unusual irregular morphology due to the presence of molybdenum. A twinned structure was observed by nanobeam diffraction within the Fe-Ni nanocrystals. The phase transformation mechanism was compared with that of Fe40Ni40B20 and Fe40Ni40P14B6 alloys and the differences were analyzed from a thermodynamic point of view. The magnetic properties, M-s and H-c, were studied by VSM, it was found that improved soft magnetic properties were achieved by heat treatment. A mean crystal size of 10 nm and a volume fraction of 1% was found to be the microstructure which would yield the lowest coercivity. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：3105 / 3113

页数：9

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