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通过测定［００１］取向单晶镍基合金的蠕变曲线，结合ＳＥＭ、ＴＥＭ观察表明，合金中组织结构的变化对蠕变抗力有明显影响。蠕变Ⅰ、Ⅱ阶段，蠕变的微观机制是位错的攀移；蠕变第三阶段，位错大量切入筏状γ相中，降低了合金的蠕变抗力，发现交替滑移使筏状γ相扭曲，致使γ／γ两相界面产生空穴或微裂纹，是蠕变断裂的直接原因。
By measuring the creep curve of [001] -oriented monocrystalline Ni-based alloy, combined with SEM and TEM observations, the changes of the microstructure in the alloy have a significant effect on the creep resistance. In creep stage I and stage II, the creep microscopic mechanism is the displacement of dislocations. In the third stage of creep, the dislocations are cut into the raft-shaped γ phase by a large amount, reducing the creep resistance of the alloy and finding that the alternating slip causes the raft Phase γγ phase distortion, resulting in γ / γ two-phase interface to produce holes or micro-cracks, is the direct cause of creep rupture.