Constitutive Rheological Modeling of Flow Serration Behaviour in Metallic Glasses Showing Nanocrystallization during Deformation
Figure 3
(a) Schematic illustration showing the details of the proposed model for serrated flow in metallic glasses. (b) The corresponding atomic illustrations of propagation of individual shear band in nanoscale range: (1)-(2) elastic deformation through conventional structural dilatation mechanism, (3)-(4) free volume creation and shear band propagation at initial stage going with structural segregation and nanocrystallization by concentration of shear stress, (5) suppression of propagation and arrest of shear band by precipitation and growth of nanocrystalline particles within the shear zone.
