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.

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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.

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