The crack development may be intercrystalline or transcrystalline.

裂沿晶界发或跨晶界发。

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

实验中，铸坯中柱状晶发，有晶出现，铸坯心部有少量等轴晶。