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

✍ Scribed by Akihiro Nino; Takeshi Nagase; Yukichi Umakoshi

Publisher
Elsevier Science
Year
2007
Tongue
English
Weight
634 KB
Volume
449-451
Category
Article
ISSN
0921-5093

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✦ Synopsis

Electron irradiation induced phase transformation behavior in Fe 77 Nd 4.5 B 18.5 (number indicate at.%) metallic glass was investigated. The meltspun amorphous phase could not keep the original structure under electron irradiation at 298 K. ␣-Fe, Nd 2 Fe 14 B and Fe 17 Nd 2 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 Nd 2 Fe 14 B and Fe 17 Nd 2 intermetallic compounds transformed to an amorphous phase under electron irradiation at 121 K, while the amorphization of ␣-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.

πŸ“œ SIMILAR VOLUMES

Electron irradiation induced phase trans
Electron irradiation induced phase transformation of supercooled liquid and amorphous phases in Zr66.7Cu33.3 metallic glass
✍ Yukichi Umakoshi; Takeshi Nagase πŸ“‚ Article πŸ“… 2007 πŸ› Elsevier Science 🌐 English βš– 525 KB

Electron-irradiation-induced phase transformations in supercooled liquid, amorphous and crystalline phases were investigated in Zr 66.7 Cu 33.3 (numbers indicate at.%) metallic glass. The supercooled liquid and amorphous phases were unstable under electron irradiation at and above 552 K: C11 b -Zr 2