Precondition for the use of hybrid additive-thermomechanical technology

Abstract

Structural-phase state of gradient structures obtained in the course of additive electron-beam production, friction-stir treatment and hybrid additive-thermomechanical technology was investigated by optical and scanning electron microscopy. Characteristic features of defect formation in materials obtained by additive method are revealed. The peculiarities of defects "healing" in additive materials after friction-stir treatment are determined. In tensile tests the mechanical properties of the samples before and after further post-treatment in aluminum alloys are measured.