单晶材料涡轮叶片的循环蠕变分析

CYCLIC CREEP ANALYSIS OF TURBINE MONOCRYSTALLINE BLADE

对ＤＤ３材料单晶涡轮叶片进行了应力循环和应力、温度同时循环下蠕变计算，得到了叶片在两种情况下的循环蠕变结果，并对两种结果和静态蠕变作了对比分析，从而为了解叶片在实际变工况下的循环蠕变行为提供了理论依据。

Stress cycling creep and stress-thermal cycling creep of monocryctalline turbine blade have been analyzed.The results are compared with static creep.This work lays the theoretical foundation for understanding the behaviours of the cycling creeps at varying regimes.