Preparation and tensile properties of amorphous Fe₇₈Si₉B₁₃/nano-Ni laminated composite

Amorphous Fe₇₈Si₉B₁₃/nano-Ni laminated composite was prepared by electrodeposition method. The tensile properties of laminated composite at room temperature were examined. The laminated composite exhibits a very high tensile strength and reasonable tensile elongation. This is attributed to a good bonding between amorphous Fe₇₈Si₉B₁₃ layer and nano-Ni layers. The amorphous layer can deform in conformity with Ni layers and be significantly stretched without fracture. The apparent surface energy γ_f of amorphous Fe₇₈Si₉B₁₃ ribbon in the laminated composite is 7 times larger than γ_f of amorphous ribbon in monolithic form. The isostrain model may be insufficient to explain the tensile behavior of the laminated composite.