(a) Globulitic grains

(c) Gray cast iron

(b) Dendritic grains

(d) Nodular cast iron

500 µm

Fig. 11.2 Equiaxed grain types frequently encountered in solidification: (a) glob-ulitic grains in Al-1wt%Cu (grain size ≈ 100µm), (b) dendritic grains in an Al-7wt%Si alloy (grain size ≈ 2 mm, Courtesy of A. Dahle), (c) gray cast iron, and (d)nodular cast iron (typical graphite nodule size ≈ 50µm) (Courtesy of G. Lesoult).Copyright 2016 EPFL Press. This figure has been reproduced from Solidification,by J.A. Dantzig and M. Rappaz, for instructional purposes. For other uses, pleasecontact the authors and the EPFL Press for written permission.