压力容器2011，Vol.28Issue(6)：37-43,59,8.DOI:10.3969/j.issn.1001-4837.2011.06.008
P91钢的蠕变-疲劳交互作用研究现状
Summary of Research on Creep - fatigue Interaction of P91 Steel
纪冬梅 1轩福贞 2涂善东 1姚秀平1
作者信息
- 1. 华东理工大学机械与动力工程学院，上海200237
- 2. 上海电力学院能源与环境工程学院，上海200090
- 折叠
摘要
Abstract
The tests of creep -fatigue for P91 steel in domestic and abroad was summaried. Based on the data from creep - fatigue tests, the research on creep - fatigue interaction and life prediction models had been carried out,which were also summaried. Some results were made from the researches. For the tests loading controlled by strain, the holding time will be changed during the experiments. Creep and fatigue were negative interaction for the tests loading controlled by stress, while creep and fatigue were positive interaction for the tests loading controlled by strain. Modified ductility exhaustion model was a suitable method to predict the creep -fatigue life for P91 steel. Under the same experiment conditions,creep -fatigue life was less than relaxation fatigue life. The ASME criterion tends to give overly conservative life prediction,whereas the RCC -MR/DDS criterion exhibits a non -conservative tendency.关键词
P91钢；蠕变-疲劳；交互作用；寿命预测Key words
P91 steel/creep - fatigue/interaction/life prediction分类
数理科学引用本文复制引用
纪冬梅,轩福贞,涂善东,姚秀平..P91钢的蠕变-疲劳交互作用研究现状[J].压力容器,2011,28(6):37-43,59,8.
