A. E. Svirid, V. G. Pushin, N. N. Kuranova, E. S. Belosludtseva, A. V. Pushin, A. V. Luk’yanov, “The effect of plastification of Cu–14Al–4Ni alloy with the shape memory effect in high-temperature isothermal precipitation”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 2020, Volume 46, Issue 3,Pages <nobr>19

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The effect of plastification of Cu–14Al–4Ni alloy with the shape memory effect in high-temperature isothermal precipitation

A. E. Svirid^ab, V. G. Pushin^ab, N. N. Kuranova^ab, E. S. Belosludtseva^a, A. V. Pushin^ab, A. V. Luk’yanov^c

^a Institute of Metal Physics, Ural Division of the Russian Academy of Sciences, Ekaterinburg
^b Ural Federal University named after the First President of Russia B. N. Yeltsin, Ekaterinburg
^c Saint Petersburg State University

Abstract: It was found that deformation by the uniaxial compression scheme (while measuring mechanical properties under isothermal conditions) at 600–800$^\circ$C leads to a significant refinement of the grain structure, which increases the strength and ductility of Cu–13.95 wt% Al–3.98 wt% Ni alloy, experiencing thermoelastic martensitic transformation and related shape memory effects. The structural and phase composition features were studied using scanning and transmission electron microscopy and X-ray diffraction.

Keywords: Cu–Al–Ni alloy, isothermal upsetting, thermoelastic martensitic transformations, fine grain structure, mechanical properties.

Received: 02.04.2019
Revised: 31.10.2019
Accepted: 31.10.2019

DOI: 10.21883/PJTF.2020.03.48986.17820n