Abstract
Using the ZrO2 particles as precursor, a novel α-Zr/β-Zr core-shell structure reinforced Zr-based metallic glass (Zr-BMG) composite was fabricated. The oxygen is mainly concentrated in the α-Zr core, resulting in the very high hardness of α-Zr core. The β-Zr shell contained the relatively moderate amount of oxygen still has good ductility and work hardenability. The α-Zr/β-Zr core-shell structure reinforced Zr-BMG composite combined the advantages of the soft ductile and hard brittle phase reinforced BMG composites, and thereby exhibits the high strength and good tensile ductility. These findings give a new perspective to adjust the mechanical properties of the BMG composites.
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