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

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 dep...

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Bibliographic Details
Published in:Key engineering materials 2019-09, Vol.822, p.101-108
Main Authors: Paitova, Olga V., Bobruk, Elena V., Wu, Jiang Yu, Skotnikova, Margarita Aleksandrovna
Format: Article
Language:English
Subjects:
Aging (artificial)
Aging (natural)
Alloy systems
Aluminum alloys
Aluminum base alloys
Copper
Copper base alloys
Electrical resistivity
Hardening
Heat treatment
Magnesium
Metallography
Microhardness
Plastic deformation
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Summary: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.
ISSN:1013-9826
1662-9795
1662-9795
DOI:10.4028/www.scientific.net/KEM.822.101