Screening of mesodefect stress fields by ensemble of moving dislocations and misorientation regions formation during plastic deformation of metals

The results of analytical studies of self-consistent dynamics of a dislocation ensemble in mesodefects (junction disclination, disclination dipole, planar mesodefect) elastic fields are presented. It is shown that mesodefects elastic fields disturb laminar flow of dislocations and course formation of increased dislocation charge density regions. Such redistribution of dislocations effectively screen mesodefect elastic fields, essentially decrease the energy of system and creates the preconditions for the formation of misoriented regions – broken sub-boundaries along the lines of dislocation charge extremum.<br />

Analysis of the conditions for the existence of stable microcracks in an elastic stress field from a rotational-shear mesodefect

S.V. Kirikov, V.N. Perevezentsev

Features of the carbide phase degradation under heating and deformation

T.S. Skoblo, O.Y. Klochko, V.N. Romanchenko, E.L. Belkin

Review: Nonequilibrium grain boundaries in bulk nanostructured metals and their recovery under the influences of heating and cyclic deformation

A.A. Nazarov