Recrystallization behavior of a Ni-20%Cr alloy subjected to severe plastic deformation

► An average grain size of 50 nm in Ni-20%Cr is achieved by severe plastic deformation. ► Discontinuous static recrystallization occurs in the alloy strained to ɛ ≤ 2. ► Bimodal grain size distribution develops after deformation to 2 < ɛ ≤ 4 and annealing. ► Continuous grain coarsening occurs after straining to ɛ > 4 and annealing.