Abstract
Change in nanocomposite structure in rapidly solidified Fe 86 Nd 9 B 5 alloy during electron irradiation was investigated. Nanocrystalline structure composed of α-Fe, Fe 3 B, Nd 2 Fe 14 B and Nd 2 Fe 23 B 3 crystalline phases was formed by rapid solidification. Electron irradiation can introduce amorphization of intermetallic compounds and crystallization of an amorphous phase, resulting in the formation of a novel nanocomposite structure in which α-Fe and Nd 2 Fe 14 B nanocrystals are embedded in the amorphous matrix. The mechanism of nanocomposite structure formation was discussed based on the phase stability of amorphous and crystalline phases under electron irradiation.
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