Quick Search:       Advanced Search
张斌,王荣桥,胡殿印,蒋康河,毛建兴,荆甫雷.基于耦合损伤的镍基单晶高温合金同相热机械疲劳寿命预测[J].稀有金属材料与工程(英文),2019,48(12):3889~3894.[Zhang Bin,Wang Rongqiao,Hu Dianyin,Jiang Kanghe,Mao Jianxing and Jing Fulei.Coupling damage based lifetime prediction of in-phase thermomechanical fatigue in nickel-based single crystal superalloys[J].Rare Metal Materials and Engineering,2019,48(12):3889~3894.]
Coupling damage based lifetime prediction of in-phase thermomechanical fatigue in nickel-based single crystal superalloys
Download Pdf  View/Add Comment  Download reader
Received:August 06, 2018  Revised:August 28, 2018
DOI:
Key words: Coupling damage  nickel-based single crystal superalloy  in-phase thermomechanical fatigue  lifetime prediction
Foundation item:国家自然科学基金资助(项目号51675024、51305012、51375031)
Author NameAffiliation
Zhang Bin,Wang Rongqiao,Hu Dianyin,Jiang Kanghe,Mao Jianxing and Jing Fulei  
Hits: 21
Download times: 10
Abstract:
      Based on the in-phase thermomechanical fatigue experiments under stress control, the damage mechanism of in-phase thermomechanical fatigue of DD6 superalloy is investigated. Based on the continuous damage mechanics, a lifetime prediction model reflecting the coupling of creep damage and fatigue damage is established, and the damage parameters in the model are obtained through using the experiment data of creep and fatigue. Furthermore, the experiments of in-phase thermomechanical fatigue with dwells of DD6 superalloy are conducted in this paper, and the experiment lifetimes are within a factor of 2.3 of the prediction lifetimes based on the coupling damage, which indicates that the coupling damage based lifetime prediction model developed in this paper could accurately predict the in-phase thermomechanical fatigue lifetimes of DD6 superalloy and provide a basis for the lifetime prediction of DD6 superalloy structure in engineering applications.