1.The crack development may be intercrystalline or transcrystalline.

1.裂缝可能沿晶界跨晶界。

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

2.实验，铸状晶达，有穿晶出现，铸心部有少量等轴晶。