MECHANICAL PROPERTIES OF EXTRUDED MIXED COMPONENTS BASED ON ALUMINUM POWDERS AND TERNARY ALUMINUM-CONTAINING INTERMETALLIC COMPOUNDS SYNTHESIZED BY VARIOUS METHODS

摘要

This work is devoted to the study of the synthesis of various ternary intermetallic compounds based on aluminum in two alternative ways - self-propagating high-temperature synthesis (SHS) and mechanosynthesis (MS) and subsequent hot extrusion (HE) of pure aluminum powder mixtures as a matrix and the above-mentioned TIM as a hardening additive. Mechanical tensile tests showed an increase in tensile strength by 3.3 - 9.7% rel. (Except for one specimen, which stands out from the others) and an increase in microhardness by 9.3 - 49.1%. The microstructure analysis shows a uniform distribution of hardening particles over the matrix volume, which indicates a high uniformity of the distribution of TIM based on aluminum in the aluminum matrix.