Electron irradiation induced crystallization and amorphization in Fe77Nd4.5B18.5 metallic glass

被引：10
|
作者：
Nino, Akihiro
Nagase, Takeshi
Umakoshi, Yukichi
机构：
[1] Osaka Univ, Div Mat & Mfg Sci, Grad Sch Engn, Suita, Osaka 5650871, Japan
[2] Osaka Univ, Dept Mat Sci & Engn, Grad Sch Engn, Suita, Osaka 5650871, Japan
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2007年 / 449卷
关键词：
electron irradiation; metallic glass; crystallization; amorphization; nanocrystalline structure; iron neodymium boron alloy;
D O I：
10.1016/j.msea.2006.02.272
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Electron irradiation induced phase transformation behavior in Fe77Nd4.5B19.5 (number indicate at.%) metallic glass was investigated. The melt-spun amorphous phase could not keep the original structure under electron irradiation at 298 K. alpha-Fe, Nd2Fe14B and Fe17Nd2 phases precipitated from the amorphous phase. There was a great difference in phase selection in a crystallization process between thermal annealing and electron irradiation. The Nd2Fe14B and Fe17Nd2 intermetallic compounds transformed to an amorphous phase under electron irradiation at 121 K, while the amorphization of alpha-Fe solid solution did not occur. A unique nanocrystalline structure which cannot be realized by thermal crystallization was formed through electron irradiation induced crystallization and amorphization. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：1115 / 1118
页数：4
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