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Influence of megaplastic deformation on the structure and hardness of Al–Cu–Mg alloy after aging

Authors
  • Petrova, A. N.1, 2
  • Radziszewska, H.3
  • Kaczmarek, L.3
  • Klih, M.3
  • Brodova, I. G.1
  • Steglinski, M.3
  • 1 Russian Academy of Sciences, Institute of Metal Physics, Ural Branch, ul. S. Kovalevskoi 18, Ekaterinburg, 620990, Russia , Ekaterinburg (Russia)
  • 2 Ural Federal University, ul. Mira 19, Ekaterinburg, 620002, Russia , Ekaterinburg (Russia)
  • 3 Tekhnical University of Lodz, ul. Stefanovskogo 1/15, Lodz, 90-924, Poland , Lodz (Poland)
Type
Published Article
Journal
The Physics of Metals and Metallography
Publisher
Pleiades Publishing
Publication Date
Dec 15, 2016
Volume
117
Issue
12
Pages
1237–1244
Identifiers
DOI: 10.1134/S0031918X16120103
Source
Springer Nature
Keywords
License
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Abstract

Methods of electron microscopy and X-ray diffraction have been used to investigate structural and phase transformations in the aluminum alloy of grade A2024 (Al–4.5 Cu–1.37 Mg–0.61 Mn–0.07 Si–0.27 Fe–0.02 Zn–0.02 Ti (wt %)) after aging and deformation by shear under high quasi-static pressure. It has been shown that the combination of two-stage aging with megaplastic deformation leads to the refinement of the structure to a nanolevel and to strengthening of the alloy (to an increase in the microhardness to 3000 MPa). The values of true deformation at which the deformation-induced dissolution of the particles of the strengthening S phase occurs have been determined.

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