Investigation on Low Cycle Fatigue Life of SC Notched Specimens

被引：0
|
作者：
Zhao, Ping [1 ,2 ]
He, Qing-hua [2 ]
Li, Wei [2 ]
机构：
[1] Cent South Univ Technol, Sch Mech & Elect Engn, Changsha 410083, Peoples R China
[2] China Aviat Powerplant Res Inst, Zhuzhou 412002, Peoples R China
来源：
MANUFACTURING SCIENCE AND ENGINEERING, PTS 1-5 | 2010年 / 97-101卷
基金：
中国国家自然科学基金;
关键词：
Nickel-based single crystal; Fatigue notch factor; Low-cycle fatigue life; SINGLE-CRYSTAL SUPERALLOYS; BEHAVIOR;
D O I：
10.4028/www.scientific.net/AMR.97-101.449
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A low cycle fatigue life (LCF) prediction model for nickel-based single crystal (SC) is presented based on the LCF experiments of notched specimens. Fatigue notch factor is adopted to reflect the influence of notch shape on LCF. Orientation function is adopted to modify total strain range and eliminate the influence of orientation on LCF. Cycle stress ratio is adopted to reflect the influence of mean stress and cycle character on LCF. The predicted results shows that all the data are in the factor of 2.1 scatter band, which means that the model proposed in this work is reasonable.
引用
收藏
页码：449 / +
页数：2
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