The Effect of Plastification of Cu–14Al–4Ni Alloy with the Shape Memory Effect in High-Temperature Isothermal Precipitation

Abstract

It was found that deformation by the uniaxial compression scheme (while measuring mechanical properties under isothermal conditions) at 600–800°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.