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研究了TiAl＋Sb合金的蠕变性能．试验结果表明，该合金在760℃存在着明显的蠕变三个阶段．应力常数n在低应力区和高应力值的区不同，720～800℃范围内，激活能Qc值较大的变化，表明了蠕变机制的改变和蠕变过程的复杂性。金相表明，变形试样中存在动态再结晶现象．
The creep property of TiAl + Sb alloy was studied. The experimental results show that the alloy has obvious creep three stages at 760 ℃. The stress constant, n, is different in low stress zone and high stress zone. The larger Qc value of activation energy in the range of 720-800 ℃ indicates the change of creep mechanism and the complexity of creep process. Metallographic shows that there is dynamic recrystallization in the deformed specimen.