Common Mechanism for Superplastic Deformation in Different Classes of Materials
An earlier proposal is generalized to explain superplasticity in different classes of materials and grain size ranges. A definition of “superplasticity” as due to a unique physical mechanism, rather than in terms of extreme elongations and/ or strain rate sensitivity index, m, being more than or equal to 0.30 emerges.
K. A. Padmanabhan and H. Gleiter, "Common Mechanism for Superplastic Deformation in Different Classes of Materials", Materials Science Forum, Vol. 735, pp. 26-30, 2013