在研究的实验条件范围内，合金的蠕变变形机制为低温高应力下的位错粘滞滑移控制和高温低应力下的位错攀移控制；
The creep mechanisms are dislocation glide at lower testing temperatures in higher stress levels and dislocation climb at higher temperatures in lower stress levels.
讨论了直刃位错临界攀移距离和温度的关系，指出了表面上相对稳定的位错组态。
The relationship between critical climb distance and temperature of straight edge dislocation was discussed.
位错攀移越过弥散质点的过程是合金超塑变形的速控过程，超塑变形的主要机制是晶界滑移伴随晶内位错运动。
For the alloy, the dominant mechanism of superplastic deformation is that the boundary sliding process will be accompanied by intragranular dislocations.
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