Abstract
The connection of iron-based amorphous alloy ribbons and Al foil with multilayer structure was achieved by the vacuum hot-pressing diffusion bonding. The interface and the microstructure were analyzed by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), X-ray diffraction (XRD) and electron backscattered diffraction (EBSD). The results show that the amorphous ribbons crystallize, the hardness increases, and the intermetallic compounds are formed between layers. The laminated materials with multi-phase and multi-performance gradient structure, have high degree of microstructure controllability and designability. As the diffusion time increases, the impact toughness and bending strength of the laminated materials increase at first and then decrease. The impact absorption energy is negatively correlated with the thickness ratio of raw material (aluminum layer: amorphous layer), and the maximum impact absorption energy can reach 50 J. However, the bending strength is positively correlated with the thickness ratio, and the maximum bending strength can reach 341 MPa.
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