高温蠕变损伤是由于过热引起的，过热使金相组织内部产生蠕变空洞，在热应力下空洞扩展连接而形成蠕变裂纹。
Creep damage is mainly caused by superheat. Because of superheat, creep cavities are formed inside microstructure, under heat stress condition, growth and join of cavities induce creep cracking.
由于材料性质以及操作条件的随机性，高温构件的蠕变损伤也同样具有随机性。
Because of the randomness of material properties and operation conditions the creep damage of high temperature component is also stochastic.
试样的微观断口分析显示了在高温应变疲劳试验中同时存在疲劳、蠕变和氧化损伤。
The results show that fatigue, creep and oxidation damage always develops simultaneously during low cycle fatigue at high temperature.
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