Kinetics of recrystallization and microstructure distribution during isothermal annealing of cold rolled nickel

Microstructural peculiarities and textural characteristics of Ni–W sheet alloy after accumulative roll-bonding and annealing

“…Obviously, the grain size at the surface layers is higher than at the internal ones. In contrast, it was observed that the grain size near the center was slightly larger than that of the surface in cold rolled and annealed pure Ni [24]. These contradictory results are explained based on the nature of the deformation processing.…”

“…Results showed that the homogeneity of the texture through the thickness was obtained after 8 ARB cycles (ε = 6.4), but the near surface and near center position was not clearly analyzed [11]. However, the recrystallization behavior along the multiscale heterogeneity of pure Ni was investigated after cold rolling [24] and only for sample processed by ARB to 6 cycles (ε = 4.8) and annealed at 200 °C for different time periods (up to 210 min) [16,17]. It was found that the fraction of {001}〈100〉 Cube texture was lower in the subsurface layers than in the center and intermediate layers of the sample due to the strong shear texture [17].…”

Nickel Nanoparticles: Insights into Sintering Dynamics

“…This consolidation of individual monocrystalline particles to a dense microstructure causes a deterioration of the desired properties originating from the nano-size of the particles. When sintering nickel nanoparticles, the process differs significantly from that in bulk recrystallization [27] due to the large surface-to-volume ratio of nanoparticles. Studies of the sintering of Ni gas nanoparticles have been used to calculate diffusion coefficients [28].…”