Simulation of high-temperature superlocalization of plastic deformation in single-crystals of alloys with an L12 superstructure

Deformation and fracture simulation of Ni3Al alloy under shock loads

“…The model of the dislocation kinetics of the alloys with the L12 superstructure, based on the storage-recovery framework, is described in details in Refs. [3,4].…”

“…A detailed description of the mechanics model and the method to combine these models are given in Refs. [3,7]. The combined model is implemented in the "RANET-3" software complex [8] that allows solving problems in a full three-dimensional formulation using the finite element method (FEM) modified to solve the dynamic problems.…”

“…A model of the plastic strain superlocalization in single crystals of alloys with the L12 superstructure under uniaxial compression was proposed earlier in Refs. [3,4]. Figure 2b presents the numerical simulation results.…”

“…Both experimental and theoretical studies of the reasons for the formation of the intense shearing bands were ca rried out in Refs. [3,5,6]. Theoretical studies have shown that the required condition for the appearance of these bands in modeling is the setting of the hardening of the deformable material by a nonmonotonic  dependence ( Fig.…”