2006 Volume 47 Issue 2 Pages 335-340
Change in nanocomposite structure in rapidly solidified Fe86Nd9B5 alloy during electron irradiation was investigated. Nanocrystalline structure composed of α-Fe, Fe3B, Nd2Fe14B and Nd2Fe23B3 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 Nd2Fe14B 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.