The dendritic arm spacings and microsegregations of directionally solidified superalloy DZ22 at various solidification rates have been studied with the help of a ZMLMC directional solidification equipment.
采用新研制的超高梯度定向凝固装置，研究了不同凝固速率下定向凝固高温合金ＤＺ２２的枝晶臂间距和枝晶偏析。
Research on secondary arm spacing has important significance for improving the mechanical properties of castings.
研究枝晶二次臂间距对于提高铸件力学性能有重要意义。
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