High cycle and very high cycle fatigue of TC17 titanium alloy: Stress ratio effect and fatigue strength modeling

doi:10.1016/j.ijfatigue.2022.107299

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	High cycle and very high cycle fatigue of TC17 titanium alloy: Stress ratio effect and fatigue strength modeling
	Li, Gen 1; Ke, Lei 2; Ren, Xuechong 2; Sun, Chengqi 1,3
刊名	INTERNATIONAL JOURNAL OF FATIGUE
	2023
卷号	166 页码:16
关键词	TC17 titanium alloy High cycle fatigue Very high cycle fatigue Stress ratio Crack initiation mechanism Fatigue strength modeling
ISSN号	0142-1123
DOI	10.1016/j.ijfatigue.2022.107299
通讯作者	Ren, Xuechong(Xcren@ustb.edu.cn) ; Sun, Chengqi(scq@lnm.imech.ac.cn)
英文摘要	The fracture surface of TC17 alloy tends to exhibit facet characteristic at R > 0, but it presents rough area morphology at R = -1 for the internal crack initiation and early growth region. The former is attributed to basal slip or cleavage of alpha grains. The later is due to the cracks caused by the nanograin formation and the cracks formed irrespective of nanograins. The present TC17 alloy and various alloys in literature indicate that Walker's equation [(1-R)/2](alpha) is more accurate than Goodman's equation and Smith-Watson-Topper's equation [(1-R)/2](1/2) for the effect of stress ratio on high cycle and very high cycle fatigue strength.
资助项目	National Natural Science Foundation of China Basic Science Center for Multiscale Problems in Nonlinear Mechanics[11988102] ; National Natural Science Foundation of China[91860112] ; International Postdoctoral Exchange Fellowship Program
WOS关键词	CRACK-INITIATION FACETS ; BEHAVIOR ; MICROSTRUCTURE ; GROWTH ; STEEL ; LIFE
WOS研究方向	Engineering ; Materials Science
语种	英语
WOS记录号	WOS:000876857900001
资助机构	National Natural Science Foundation of China Basic Science Center for Multiscale Problems in Nonlinear Mechanics ; National Natural Science Foundation of China ; International Postdoctoral Exchange Fellowship Program
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/90666]
专题	力学研究所_非线性力学国家重点实验室
通讯作者	Ren, Xuechong; Sun, Chengqi
作者单位	1.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China 2.Univ Sci & Technol Beijing, Natl Ctr Mat Serv Safety, Beijing 100083, Peoples R China 3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Li, Gen,Ke, Lei,Ren, Xuechong,et al. High cycle and very high cycle fatigue of TC17 titanium alloy: Stress ratio effect and fatigue strength modeling[J]. INTERNATIONAL JOURNAL OF FATIGUE,2023,166:16.
APA	Li, Gen,Ke, Lei,Ren, Xuechong,&Sun, Chengqi.(2023).High cycle and very high cycle fatigue of TC17 titanium alloy: Stress ratio effect and fatigue strength modeling.INTERNATIONAL JOURNAL OF FATIGUE,166,16.
MLA	Li, Gen,et al."High cycle and very high cycle fatigue of TC17 titanium alloy: Stress ratio effect and fatigue strength modeling".INTERNATIONAL JOURNAL OF FATIGUE 166(2023):16.