ЛОКАЛЬНІ СТРУКТУРНІ ЕФЕКТИ ПОБЛИЗУ НЕМЕТАЛІЧНИХ ВКЛЮЧЕНЬ У СТАЛЕВІЙ МАТРИЦІ

Abstract

Relaxation processes near non-metallic inclusions that occur under conditions of the appearance of the thermal and deformation stresses and contribute to the appearance of local mesoscopic substructures, which are characterized by heterogeneities of the density of dislocations, plastic rotations, local discharges, and slip along the on-matrix boundaries were discussed. It was shown the influence of these processes on the local structural changes in steel matrix, which determine the influence of non-metallic inclusions and the inclusion-steel matrix interphase boundaries in the formation of structural heterogeneity of steels under various deformation and thermal effects.