Remaining safety and useful life of high temperature components are always degraded by service induced material damage including creep, thermal fatigue, over heat oxidation, carburization, etc.

• 高温构件在服役过程中所受到的损伤,如蠕变、热疲劳、过热氧化和渗碳等时刻都在缩短高温构件的使用寿命和剩余安全裕度。