The crack development may be intercrystalline or transcrystalline.

裂缝晶界或跨晶界。

Column grains develop well in casting blank, with transcrystalline grains and a little equiaxed grains in the center.

实验中，铸坯中柱状晶，有穿晶出现，铸坯心部有少量等轴晶。