Improved tensile ductility of amorphous Fe78Si9B13 alloy using electrodeposited nano-Ni layers

Abstract In order to improve the tensile ductility of amorphous Fe 78 Si 9 B 13 alloy, nano-Ni layers were electrodeposited on the amorphous alloy ribbon and amorphous Fe 78 Si 9 B 13 /nano-Ni laminated composite was prepared. The tensile ductility of laminated composite and monolithic amorphous alloy at both room and high temperatures was examined. The elongation of the amorphous Fe 78 Si 9 B 13 alloy and that in the laminated composite increases from 1.4% to 8.5% and from 36.3% to 115.5% at room temperature and 450 °C, respectively. The improved tensile ductility using electrodeposited nano-Ni layers is attributed to a good bonding between the amorphous Fe 78 Si 9 B 13 layer and nano-Ni layers. The amorphous layer can deform in conformity with Ni layers and be significantly stretched without fracture.