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 area of columnar structures decreased, and that of equiaxed crystals enlarged. The grain size reduced.

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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 area of columnar structures decreased, and that of equiaxed crystals enlarged. The grain size reduced.

youdao