高温服役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.基于上述材料损伤,国内外提出了大量的寿命评价方法,并对这些方法和今后的发展趋势进行了评述,讨论和分析了几种主要方法的使用范围和局限性,并对今后的进一步研究提出一些建议.
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