Formation of τ-phase in Fe60Nb10B30 amorphous alloy with a large supercooled liquid region

被引：26
|
作者：
Imafuku, M
Li, CF
Matsushita, M
Inoue, A
机构：
[1] Japan Sci & Technol Corp, JST, ERATO, Inoue Superliquid Glass Project, Sendai, Miyagi 9820807, Japan
[2] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan
来源：
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 2002年 / 41卷 / 01期
关键词：
Fe60Nb10B30; amorphous alloy; crystallization process; tau-phase;
D O I：
10.1143/JJAP.41.219
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A metastable nanocrystalline tau-phase with a complex fcc structure was confirmed as a primary precipitation phase in the melt-spun Fe60Nb10B30 amorphous alloy with a two-stage crystallization process. The phase transformation from the amorphous phase to the tau-phase takes place at 1001 K at a heating rate of 0.67 K/s.The microstructure of this phase is composed of homogeneously distributed fine grains in the diameter range below 10 nm. The composition of this phase is almost the same as that of the starting amorphous phase. The tau-phase decomposes into alpha-Fe, Fe3B and Fe2B phases in the second-stage reaction.
引用
收藏
页码：219 / 221
页数：3
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