Abstract
Electron irradiation was performed in an amorphous phase of Fe71Zr9B20 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.
