Abstract
Porous SiC/Ti-based metallic glass composite (Ti-BMGC), a new kind of composite, has significant application prospect in the field of light armor. To evaluate the dynamic mechanical response of the composite, dynamic Vickers hardness and indentation-induced deformation behavior were investigated by comparison with that under static indentation. The dynamic hardness was measured by a modified split Hopkinson pressure bar (SHPB). The dynamic hardness is obviously greater than the static hardness. The brittleness parameter under dynamic indentation is also greater than that under static indentation. Although the dynamic indentation induced more severe deformation behavior than the static indentation, the deformation and fracture characteristics in the two loading cases are nearly the same, both exhibiting extensive cracks in the SiC phase and severe plastic deformation in the metallic glass phase.
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