Abstract
The evolution of shear bands in the glassy matrix composites was observed and analyzed during in-situ tension. Based on the simple calculation, the temperature rise within the shear bands is sufficient to cause the formation of viscous shearing layer, resulting in the early failure. Zr-based metallic-glass-matrix composites (labeled as DH1 and DH2) exhibit improved tensile ductility rather than brittle failure, since the existence of secondary ductile dendrites promotes the impedance of prompt propagation of shear bands, evidenced by the multiplication of shear bands.
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