电厂锅炉过热器管失效分析及残余寿命预测  

Analysis on Invalidation of Overheater Pipes in Power Plants and Prediction of Their Life Expectancy

作　　者：贺株莉[1] 

机构地区：[1]长沙电力学院,湖南长沙410077

出　　处：《长沙铁道学院学报》2003年第1期108-112,共5页Journal of Changsha Railway University

摘　　要：对运行后的管材进行金相分析、蠕变孔洞观察及评级、高温持久实验等.采用综合分析法对其寿命进行预测.Based on the metallographical analysis,observation,grading creeping holes as well as the experiment with the hightemperature creeprupture,this paper predicts the life expectancy of the overheater pipes after operation.Comprehensive analysis is adopted here.

关 键 词：锅炉管 后屏过热器 蠕变损伤 珠光体球化 

分 类 号：TK223.13[动力工程及工程热物理—动力机械及工程] TG146.2[一般工业技术—材料科学与工程]