Abstract
The tendency of the aluminum alloy D16 system Al-Cu-Mg to natural (NA) and artificial aging (AA) after hardening and high pressure torsion (HPT) under a pressure of 6 GPa at room temperature was studied using optical metallography, scanning electron microscopy, electrical conductivity tests. The dependences of microhardness and electrical conductivity were constructed depending on the exposure time. It is shown that heat treatment (HT) (hardening + HPT + NA) leads to an increase of hardening of the alloy D16 compared to standard HT (T4) in 2,3 times, at preservation of level of conductivity.
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