Analysis shows that the solidification cracking was always formed and developed along film-like sulphides at columnar grain boundaries.
分析认为，凝固裂纹是沿偏聚在柱状晶晶界的低熔点膜状硫化物形成并扩展的。
But in the backing welding, columnar grain-growth will be appeared in the direction of crystal direction, it effects the welding quality seriously.
但是单面焊打底层焊缝中出现的沿焊缝柱状晶结晶方向的柱状气孔，严重地影响着船舶焊接质量。
In the depth direction, the initiated ESFCs grew perpendicular to the loading axle first and then to be inclined to the direction perpendicular to the material columnar grain structure formation.
深度方向，裂纹初始与加载方向垂直，之后倾向于与柱状晶生长方向垂直。
The area of columnar structures decreased, and that of equiaxed crystals enlarged. The grain size reduced.
过滤后铸棒组织中的柱状晶区缩小，中心等轴晶区扩大、晶粒度降低。
The use of the die successfully produced superfine grain columnar material with average grain size as 1.
利用该模具，可以在实验室制备具有超细晶粒度的板状材料。
The use of the die successfully produced superfine grain columnar material with average grain size as 1.
利用该模具，可以在实验室制备具有超细晶粒度的板状材料。
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