Figure 15.

Hall–Petch plot, HV – L−1/2, for nanocrystalline Ni whose grain size was increased by isochronal annealing. Dashed oval denotes the regime where data follows an inverse Hall-Petch relation

Hall–Petch plot, HV – L−1/2, for nanocrystalline Ni whose grain size was increased by isochronal annealing. Dashed oval denotes the regime where data follows an inverse Hall-Petch relation