未添加re的合金，随浇注温度的下降，其初生相由发达的树枝晶转变成等轴枝晶。
As pouring temperature decreasing, primary phase in the alloy without re addition changes from large dendritic crystal to equiaxed crystal.
未添加re的合金，随浇注温度的下降，其初生相由发达的树枝晶转变成等轴枝晶。
As pouring temperature decreasing, primary phase in the alloy without re addition changes from large dendritic crystal to equiaxed crystal.
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