NbC precipitation during two-pass hot deformation of a nickel-based model alloy at 700 °C: Experiments and modelling

Precipitation behavior during two-pass hot-deformation has been investigated in a 70Ni–30Fe–Nb–C model alloy. Samples were deformed at 700 °C and annealed for different times after each deformation pass. The deformed microstructure consisted of cell-like dislocation structures as well as ill-defined microbands and dislocation tangles. Annealing resulted in recovery, with no evidence of recrystallization. Precipitates nucleated heterogeneously …