中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 力学研究所
  3. 中国科学院力学研究所
  4. 宽域飞行工程科学与应用中心
Thermomechanical fatigue damage mechanism and life assessment of a single crystal Ni-based superalloy

文献类型：期刊论文

作者Yang, Junjie5; Jing, Fulei4; Yang, Zhengmao3; Jiang, Kanghe2; Hu, Dianyin1; Zhang, Bin1; Yang ZM(杨正茂)
刊名JOURNAL OF ALLOYS AND COMPOUNDS
出版日期2021-08-15
卷号872页码:12
关键词Thermomechanical fatigue (TMF) Single crystal superalloy Ratcheting effect Critical plane approach Life prediction
ISSN号0925-8388
DOI10.1016/j.jallcom.2021.159578
通讯作者Jing, Fulei(jingfulei@163.com) ; Yang, Zhengmao(zmyang@imech.ac.cn)
英文摘要The thermomechanical fatigue (TMF) of single-crystal air-cooled turbine blades is critical for accurately evaluating the lifetimes of advanced aero-engines. The present work focuses on the mechanical behavior and damage mechanism of a single-crystal Ni-based superalloy (DD6) under stress-controlled TMF loading, and in-phase (IP) and out-of-phase (OP) mode of TMF were conducted and compared with low cycle fatigue (LCF) loading. A ratcheting effect is observed during the deformation of DD6 under TMF loading, and the direction and size of the ratcheting strain are considerably influenced by the phase angle and mechanical load. The ratcheting strain increases with mechanical load and dwell time at high temperature, consequently shortening the lifetime of the material. The key factors affecting the TMF damage of DD6 are identified through a SEM analysis, which shows that the damage under IP TMF loading mainly comes from creep and fatigue, whereas that under OP TMF loading is dominated by oxidation and fatigue. Based on the critical plane approach, a fatigue life prediction model is proposed considering the ratcheting effect to predict the fatigue life of DD6 under TMF loading. The good agreement between the proposed model and experimental data indicates that the model has the potential to predict the fatigue life of DD6 under TMF loading. (c) 2021 Elsevier B.V. All rights reserved.
WOS关键词LOW-CYCLE FATIGUE ; BEHAVIOR ; ORIENTATIONS ; DEFORMATION ; PREDICTION ; STRAIN ; MODEL
资助项目Strategic Priority Research Program of Chinese Academy of Sciences[XDA17030100] ; National Natural Science Foundation of China[51375031]
WOS研究方向Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种英语
WOS记录号WOS:000647671300004
资助机构Strategic Priority Research Program of Chinese Academy of Sciences ; National Natural Science Foundation of China
源URL[http://dspace.imech.ac.cn/handle/311007/86584]  
专题宽域飞行工程科学与应用中心
通讯作者Jing, Fulei; Yang, Zhengmao
作者单位1.Beihang Univ, Sch Energy & Power Engn, Beijing, Peoples R China
2.Aero Engine Grp Corp China, Hunan Aviat Powerplant Res Inst, Zhuzhou, Peoples R China
3.Chinese Acad Sci, Inst Mech, Beijing, Peoples R China
4.Aero Engine Grp Corp China, Aero Engine Acad China, Beijing, Peoples R China
5.Tsinghua Univ, Inst Aero Engine, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Yang, Junjie,Jing, Fulei,Yang, Zhengmao,et al. Thermomechanical fatigue damage mechanism and life assessment of a single crystal Ni-based superalloy[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2021,872:12.
APA Yang, Junjie.,Jing, Fulei.,Yang, Zhengmao.,Jiang, Kanghe.,Hu, Dianyin.,...&杨正茂.(2021).Thermomechanical fatigue damage mechanism and life assessment of a single crystal Ni-based superalloy.JOURNAL OF ALLOYS AND COMPOUNDS,872,12.
MLA Yang, Junjie,et al."Thermomechanical fatigue damage mechanism and life assessment of a single crystal Ni-based superalloy".JOURNAL OF ALLOYS AND COMPOUNDS 872(2021):12.

入库方式： OAI收割

来源：力学研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。