P92钢蠕变本构方程测试研究  

Study on Creep Constitutive Relation of P92 Steel

作　　者：郑相锋[1] 姜运建[1] 王庆[1] 冯砚厅[1] 李中伟[1] 

机构地区：[1]河北省电力研究院,河北石家庄050021

出　　处：《锅炉技术》2011年第2期50-52,共3页Boiler Technology

摘　　要：高温构件因蠕变损伤而引起失效断裂的现象已引起研究人员的重视,针对新型耐热钢P92钢高温蠕变特点,考虑实际工程应用,采用蠕变拉伸试验得到适合P92钢母材蠕变第二阶段的蠕变本构方程,为进一步研究P92钢焊接接头的寿命评估提供了基础数据。Fracture failure of P92 steel servicing under high temperature creep damage has arose researchers more recognition. According to the characteristics of P92 steel high tem perature creep and considering the engineering application , the paper design experiment to measure and calculate the creep constitutive relation of secondary creep, which provides the experiment data for sdudying on P92 steel welding joints life assessment.

关 键 词：新型耐热钢 蠕变本构方程 寿命评估 

分 类 号：TG441.8[金属学及工艺—焊接]