Low cycle fatigue life prediction of GH909 superalloy at elevated temperature

摘要：

Low cycle fatigue experiments of low expansion superalloy GH909 at high temperatures of 400℃ and 650℃ were conducted on servohydraulic test machine by the method of axial strain control. The relationship of strain and life, cyclic strain and stress of the alloy at different temperatures were investigated. The prediction results show that Manson-Coffin model and threeparameter power function give a better life prediction than Ostergren model at different temperatures.

关键词： Low expansion superalloy Low cycle fatigue Fatigue life Life prediction

作者: Shichao Zhang Huichen Yu Ying Li Yuxin Zhao

作者单位: Beijing Key Laboratory of Aeronautical Materials Testing and Evaluation, Beijing 100195, China;Natio National Key Laboratory of Science and Technology on Advanced High Temperature Structural Materials,

会议类型: 国际会议

会议名称: 2012 International Symposium on Structural Integrity 2012国际结构完整性学术研讨会 ISSI 2012

会议地点: 济南

会议语种:英文

页码: 147-151

在线出版日期: 2012-10-31（万方平台首次上网日期，不代表论文的发表时间）