IMECH-IR  > 非线性力学国家重点实验室
An experimental investigation of fatigue performance and crack initiation characteristics for an SLMed Ti-6Al-4V under different stress ratios up to very-high-cycle regime
Fu, Rui1; Zheng, Liang1; Ling, Chao1; Zhong, Zheng1; Hong YS(洪友士)2
Corresponding AuthorZhong, Zheng(zhongzheng@hit.edu.cn) ; Hong, Youshi(hongys@imech.ac.cn)
Source PublicationINTERNATIONAL JOURNAL OF FATIGUE
2022-11-01
Volume164Pages:14
ISSN0142-1123
AbstractThe fatigue behavior of SLMed Ti-6Al-4V has been intensively investigated in recent years. However, the effect of stress ratio has not been comprehensively studied, especially in VHCF regime. In this paper, the fatigue per-formance and crack initiation characteristics up to VHCF regime for an SLMed Ti-6Al-4V at various stress ratios (R =-1,-0.5, 0.1 and 0.5) were investigated and the effects of stress ratio were substantially discussed. The stress amplitude decreases with the increase of stress ratio with the order of: sigma(a) (R =-1) > sigma(a) (R =-0.5) > sigma(a) (R = 0.1) > sigma(a) (R = 0.5). Internal crack initiation is dominant in HCF and VHCF regimes under the four stress ratios, although surface crack initiation rarely occurs in HCF regime at R =-1 and 0.5. Whether the crack initiates from subsurface or from interior is affected by the applied maximum stress, and the crack initiation is in relation not only to defect size but also to defect location. The nanograins in RA are evidently formed in VHCF regime at R =-1,-0.5 and 0.1, but not at R = 0.5, which is well explained by the NCP model.
KeywordSelective laser melting Ti-6Al-4V Very-high-cycle fatigue Crack initiation Stress intensity factor
DOI10.1016/j.ijfatigue.2022.107119
Indexed BySCI ; EI
Language英语
WOS IDWOS:000835270000001
WOS KeywordADDITIVELY MANUFACTURED TI-6AL-4V ; MECHANICAL-PROPERTIES ; TENSILE PROPERTIES ; HEAT-TREATMENT ; N-GREATER-THAN-10(7) CYCLES ; BUILD ORIENTATION ; EARLY GROWTH ; PART I ; LASER ; MICROSTRUCTURE
WOS Research AreaEngineering ; Materials Science
WOS SubjectEngineering, Mechanical ; Materials Science, Multidisciplinary
Funding ProjectNational Natural Science Foundation of China[11932005] ; National Natural Science Foundation of China[11932020] ; Shenzhen Fundamental Research Program[JCYJ20180306171946292]
Funding OrganizationNational Natural Science Foundation of China ; Shenzhen Fundamental Research Program
Classification一类
Ranking1
ContributorZhong, Zheng ; Hong, Youshi
Citation statistics
Cited Times:14[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/89838
Collection非线性力学国家重点实验室
Affiliation1.Harbin Inst Technol Shenzhen, Sch Sci, Shenzhen, Peoples R China;
2.Chinese Acad Sci, Inst Mech, LNM, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Fu, Rui,Zheng, Liang,Ling, Chao,et al. An experimental investigation of fatigue performance and crack initiation characteristics for an SLMed Ti-6Al-4V under different stress ratios up to very-high-cycle regime[J]. INTERNATIONAL JOURNAL OF FATIGUE,2022,164:14.
APA Fu, Rui,Zheng, Liang,Ling, Chao,Zhong, Zheng,&洪友士.(2022).An experimental investigation of fatigue performance and crack initiation characteristics for an SLMed Ti-6Al-4V under different stress ratios up to very-high-cycle regime.INTERNATIONAL JOURNAL OF FATIGUE,164,14.
MLA Fu, Rui,et al."An experimental investigation of fatigue performance and crack initiation characteristics for an SLMed Ti-6Al-4V under different stress ratios up to very-high-cycle regime".INTERNATIONAL JOURNAL OF FATIGUE 164(2022):14.
Files in This Item: Download All
File Name/Size DocType Version Access License
Jp2022FA084_2022_An (26974KB)期刊论文出版稿开放获取CC BY-NC-SAView Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Lanfanshu
Similar articles in Lanfanshu
[Fu, Rui]'s Articles
[Zheng, Liang]'s Articles
[Ling, Chao]'s Articles
Baidu academic
Similar articles in Baidu academic
[Fu, Rui]'s Articles
[Zheng, Liang]'s Articles
[Ling, Chao]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Fu, Rui]'s Articles
[Zheng, Liang]'s Articles
[Ling, Chao]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Jp2022FA084_2022_An experimental investigation of fatigue performance and crack initiation.pdf
Format: Adobe PDF
This file does not support browsing at this time
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.