Improving the Properties of Aluminum Alloy System Al-Cu-Mg, Subjected to Hardening and Severe Plastic Deformation

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.

• Periodical: Key Engineering Materials (Volume 822)
• Pages: 101-108
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.822.101
• Online since: September 2019
• Authors: Olga V. Paitova*, Elena V. Bobruk, Margarita Aleksandrovna Skotnikova, Jiang Yu Wu
• Keywords: Bulk Nanomaterials, Fractographic Analysis, Mechanical Properties, Severe Plastic Deformation, Ultrafine-Grained Materials

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