二次枝晶臂间距变化不明显。
However, the second dendrite arm spacing (SDAS) changes little.
结合实验和模拟结果，得出该合金的晶粒尺寸、一次枝晶间距、二次枝晶臂间距随冷却速率增大而明显减小。
The results show that the grain average size and the primary and secondary dendrite arm space were obviously reduced with the increase of cooling rate.
研究枝晶二次臂间距对于提高铸件力学性能有重要意义。
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。
Research on secondary arm spacing has important significance for improving the mechanical properties of castings.
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