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The paper considers the method for determining stable low angle cell boundaries.
The multilevel physical approach is applied to model inelastic deformation, using which
shears are found for slip systems of the crystal. Based on these data, the density of two types
of dislocation defects, which are stopped during deformation at crystallite boundaries, is
introduced into consideration. The optimization problem is posed for finding sections of the
boundary with reduced energy. The dependence of orientation of these sections relative to the
crystallographic coordinate system is investigated. The results of solving the optimization
problem and their analysis are presented.
Keywords: crystal plasticity, crystal structure, dislocation boundaries, energy of low angle boundaries, Reed-Shockley relation |
full paper (pdf, 1664 Kb)