Abstract
The structural and phase transitions in the Al–Li–Cu–Mg–Zr–Sc–Zn alloy subjected to megaplastic torsional deformation under high pressure in the process of low-temperature annealing at 150°C have been studied by electron microscopy. It has been shown that the character of the nanocrystalline structure formed in the annealing process is determined by the specific features of the earlier existing deformation structure and demonstrates structural heredity. The effect produced by the structural state of the annealed alloy on the level of mechanical properties (hardness, plasticity, elasticity modulus, stiffness) is discussed.
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ACKNOWLEDGMENTS
This study was performed within the state task to the Mikheev Institute of Metal Physics of the Ural Branch of the Russian Academy of Sciences (project “Structure”, grant no. AAAA-A18-118020190116-6).
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Translated by E. Glushachenkova
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Kaigorodova, L.I., Rasposienko, D.Y., Pushin, V.G. et al. Effect of Annealing on the Structure and Properties of the Aging Al–Li–Cu–Mg–Zr–Sc–Zn Alloy Subjected to Megaplastic Strain. Phys. Metals Metallogr. 120, 157–163 (2019). https://doi.org/10.1134/S0031918X19020066
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DOI: https://doi.org/10.1134/S0031918X19020066