Table 2: Results of nodularity for samples before and after heat treatment.

Type RC* (<0.65) (%) RC (0.65–0.8) RC (0.8–1) Al–15% Mg2Si (as cast) 40 36 24 Al–15% Mg2Si (heat treated) 22.73 40.91 36.36 Al–20% Mg2Si (as cast) 90 0 10 Al–20% Mg2Si (heat treated) 13.46 17.31 69.23 Al–25% Mg2Si (as cast) 90.91 4.55 4.55 Al–25% Mg2Si (heat treated) 37.21 25.58 37.21

*Radius of curvature.