154179.fig.005a
(a)
154179.fig.005b
(b)
154179.fig.005c
(c)
Figure 5: Experimental hardness as a function of mean grain size, fitted using the Hall-Petch equation. (a) Was deposited at RT only, (b) postannealed at 150°C for 1 h, and (c) postannealed at 250°C for 1 h.