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对［001］取向单晶镍基合金恒温恒载压缩蠕变不同时间的组织形貌进行SEM和TEM观察表明：蠕变初期，两立方γ′相沿平行于应力轴方向扩散相连定向生长成为条形筏结构；垂直通道中基体[001］晶向共格应变量减小，应变能降低是合金元素定向扩散形成γ′相筏结构的驱动力；压缩与拉伸蠕变相比较，γ′相形筏所需要的时间较长，应力较大
SEM and TEM observations of the microstructures of the [001] oriented single crystal nickel-base alloy under constant temperature and constant compression showed that the two cubic γ ’phases grow parallel to each other along the stress axis in the initial creep direction Raft structure; the vertical strain of [001] crystal lattice decreases in the direction of lattice strain, and the decrease of strain energy is the driving force for the directional diffusion of alloying elements to form γ ’-phase raft structure. Comparing with tensile creep, The time required is longer and the stress is greater