부산대학교 도서관

The structural changes induced in an amorphous FePSi alloy by heat treatment and lamp processing have been compared using X-ray diffraction. The results demonstrate that the main effect of the lamp processing is to increase the crystallization rate. Under nanoindentation conditions that do not lead to crystallization under the action of a concentrated load (as verified by transmission electron microscopy), we have determined the hardness (8 ± 0.3 GPa) and Young's modulus (130 ± 10 GPa) of the amorphous alloy. Lamp processing conditions have been found that lead to the formation of an amorphous-nanocrystalline composite whose hardness is almost twice that of the parent amorphous alloy, without loss of plasticity. [ABSTRACT FROM AUTHOR]