n the 70s of the last century, domestic researchers developed an aluminum alloy with 7% rare earth elements (REM), which, at melt cooling rates of up to 104 deg / s, are dispersed into intermetallic phases, which significantly increase the heat resistance, corrosion resistance, and weldability of finished semi-finished products for conductive material. Due to this, this alloy is used for the manufacture of on-board wires of aircraft operating at temperatures from -50 to +250 ° C instead of wires with a copper core [1].464/5000In the 70s of the last century, domestic researchers developed an aluminum alloy with 7% rare earth elements (REM), which decompose at cooling rates to 104 degrees, while being dispersed into intermetallic phases that have increased heat resistance, corrosion resistance and weldability of finished semi-finished products for conductor material. Due to this, at a temperature from -50 to +250 ° С, a wire with a copper residential area exploded [1].