This article presents the results of experimental studies on the dynamic and static strength of commercial aluminum alloy 5056 manufactured by wire-arc additive manufacturing (WAAM). The main objective is to evaluate the utilization potential of this technology for manufacturing parts for operation under shock loads. The dynamic tensile strength of the material was investigated with a modified Kolsky method, implemented by a split Hopkinson pressure bar. A comparative analysis of the strength characteristics of materials manufactured by WAAM and conventional cold-rolling methods was carried out using a structurally temporal approach with the incubation time criterion. The results showed that the aluminum alloy obtained by WAAM demonstrates comparable strength levels to that of cold-rolled material. The findings suggest that WAAM can be a competitive alternative for producing high-strength aluminum alloys for operation under shock loads.

This study investigates the microstructure and mechanical properties of a refractory Ti ₂ NbZr complex concentrated alloy fabricated for the first time by laser-based directed energy deposition (DED-LB) from a pre-alloyed powder. The optimal processing parameters were identified; specifically, a laser power of 1600 W ensured a minimum porosity of 0.031 %. Comprehensive analysis revealed the formation of a single-phase BCC structure with a heterogeneous morphology, in which large columnar grains alternated with layers of fine equiaxed grains. The average grain size decreased with increasing specimen height. Mechanical testing demonstrated a favorable combination of strength and ductility, with a yield strength of ~810 MPa, an ultimate tensile strength of ~815 MPa, and an elongation of 16 %. A theoretical assessment of the contributions of the strengthening mechanisms showed good agreement with the experimental data. Solid-solution strengthening was found to make the dominant contribution to the alloy strength. The results confirm the potential of DED-LB for manufacturing high-quality Ti ₂ NbZr components with mechanical properties superior to those of counterparts produced by conventional and additive technologies.