Affiliation:
1. Peter the Great Saint-Petersburg Polytechnic University
2. Ufa State Aviation Technical University
3. Jiangsu Pedagogical University
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.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,General Materials Science
Reference22 articles.
1. Bulk nanostructured materials with multifunctional properties / I. Sabirov, N.A. Enikeev, M.Yu. Murashkin, R.Z. Valiev. - 2015. Springer Cham Heidelberg New York Dordrecht London. – 118 p.
2. Liu M., Roven H.J., Liu X., Murashkin M., Valiev R.Z., Ungar T., Balogh L. Grain refinement in nanostructured Al-Mg alloys subjected to high pressure torsion. 2010. Journal of Materials Science, Kluwer Academic Publishers, v. 45, p.4659.
3. Roven H.J., Liu M., Murashkin M., Valiev R.Z., Kilmametov A.R., Ungar T., Balogh L. Nanostructures and microhardness in Al and Al-Mg alloys subjected to SPD. 2009. Materials Science Forum, № 604-604, p.179.
4. Valiev R.Z., Aleksandrov I.V. Nanostructured materials obtained by severe plastic deformation. M.: Logos, 2000. 272 p.
5. Segal V.M., Reznikov V.I., Drobyshevsky F.E., Kopylov V.I. Plastic processing of metals by simple shift. Izv. Academy of Sciences of the USSR. Metals. 1981. №1, p.115.