Electron irradiation induced crystallization and amorphization in Fe77Nd4.5B18.5 metallic glass
Electron irradiation induced crystallization and amorphization in Fe77Nd4.5B18.5 metallic glass
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DOI：
10.1016/j.msea.2006.02.272
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发表时间：
2007-03
期刊：
影响因子：
6.4
通讯作者：
A. Nino;T. Nagase;Y. Umakoshi
中科院分区：
文献类型：
--
作者：
A. Nino;T. Nagase;Y. Umakoshi
研究了电子辐照诱导Fe77Nd4.5B18.5(数字表示at.%)金属玻璃的相变行为。熔纺非晶相在298K电子辐照下不能保持原始结构。 α-Fe、Nd2Fe14B 和 Fe17Nd2 相从非晶相中析出。热退火和电子辐照之间的结晶过程中的相选择存在很大差异。 Nd2Fe14B和Fe17Nd2金属间化合物在121K电子辐照下转变为非晶相，而α-Fe固溶体没有发生非晶化。通过电子辐照诱导结晶和非晶化形成了热结晶无法实现的独特纳米晶结构。
Electron irradiation induced phase transformation behavior in Fe77Nd4.5B18.5(number indicate at.%) metallic glass was investigated. The melt-spun amorphous phase could not keep the original structure under electron irradiation at 298K. α-Fe, Nd2Fe14B and Fe17Nd2phases 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 Fe17Nd2intermetallic compounds transformed to an amorphous phase under electron irradiation at 121K, while the amorphization of α-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.