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Effect of Microsegregation on Mechanical Properties of ZL205A Casting Aluminum Alloy;

显微共晶偏析对ZL205A合金力学性能的影响

With the help of high temperature-gradient directional solidification equipment (HGDS), the microstructure and microsegregation of Ni-base single crystal superalloy CMSX-2 solidified at the cooling rates from below 1 K/s to 20 K/s were investigated.

实验发现采用高梯度定向凝固技术可以得到具有超细枝晶组织的单晶高温合金材料，枝晶偏析在低速生长时随冷却速率的增加而增加，而在高速生长时形成的超细枝晶组织中，枝晶偏析随冷却速率的增加而减小。

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。