Comparison of strength characteristics of layered structure produced by friction stir welding to characteristics of layer-by-layer deposited metal

Abstract

In this paper, the comparison of the strength characteristics of the layered metal structure obtained by friction stir welding with layer-by-layer deposited metal characteristics is presented. Aluminum-magnesium alloys were used as the material for research. Structural and mechanical studies show that despite similar layered structures, the solid-phase and liquid-phase processes of structure formation are notable for mechanical characteristics. The tensile strength of the friction stir welded samples is 1.5 - 1.8 times higher than that of the samples obtained by the additive method.