Electron Irradiation Induced Nanocrystallization Behavior in Fe71Zr9B20 Metallic Glass
Electron Irradiation Induced Nanocrystallization Behavior in Fe71Zr9B20 Metallic Glass
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DOI：
10.2320/matertrans.46.608
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发表时间：
2005-03
影响因子：
1.2
通讯作者：
T. Nagase;Y. Umakoshi
中科院分区：
文献类型：
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作者：
T. Nagase;Y. Umakoshi
在非晶相Fe71Zr9B20金属玻璃中进行了电子辐照.尽管非晶相具有很高的热稳定性，在71K有较宽的过冷液相区，但在103K和298K电子辐照诱导晶化不能保持原始结构，热晶化和电子辐照诱导晶化在相选择上有很大的不同。辐照温度对相选择和相变动力学有很大影响。从抗电子辐照的相稳定性和组成原子重新分布的必要性出发，讨论了电子辐照诱导晶化过程中影响晶相选择的主要因素。
Electron irradiation was performed in an amorphous phase of Fe 7 1 Zr 9 B 2 0 metallic glass. Although the amorphous phase showed high thermal stability with a wide supercooled liquid region of 71 K, it could not maintain the original structure under electron irradiation and electron irradiation induced crystallization occurred at 103 K and 298 K. There was a great difference in phase selection between thermal crystallization and electron irradiation induced crystallization. The irradiation temperature strongly affected the phase selection and transformation kinetics. The dominant factors of phase selection in electron irradiation induced crystallization were discussed on the basis of phase stability against electron irradiation and the necessity of redistribution of constituent atoms.