It was a long-cherished dream for materials scientists to find a nearly ideal metallic alloy with high strength and super-plasticity concurrently as a super-material both extremely strong and exceptionally hard for human use. Due to the limitation of the deforming mechanism, a material's plasticity usually has to turn down or even to disappear when its strength is raised. This is because the same properties that give metallic glasses their strength also contribute to their propensity to fracture.
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