Superplasticity refers to the ability of certain materials, typically some metals, to undergo very large strains (a significant amount of plastic deformation) without fracturing, often exceeding 1000% elongation. This remarkable property is observed at elevated temperatures, typically above 0.5 times the melting temperature of the material in absolute terms (Kelvin). The phenomenon of superplasticity is characterized by a fine-grained microstructure, which allows the material to deform extensively under a constant tensile load.
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