Abstract
A monolithic Cu-based bulk metallic glass (BMG), having plastic strain of more than 26% together with fracture strength of 2471MPa, was fabricated by copper mold casting. This plastic strain has never seen in monolithic Cu-based BMGs containing more than 50at.% Cu. The excellent plasticity is attributed to a large amount of free volume induced by minor addition of nickel, resulting in multiple shear bands formation, branching and interaction.
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