Fig. 8.

Gauss versus mean curvature distributions of the surface of the Mg₂Si phase in a volume of (60 μm × 18 μm × 47 μm – see Fig. 5) (a) where all Mg₂Si particles in as-cast condition and after 30 min/540 °C are presented, (b) only the largest Mg₂Si particle in as-cast condition and after 30 min/540 °C, (c) all particles but the largest Mg₂Si particle in as-cast condition and after 30 min/540 °C.