IMECH-IR  > 非线性力学国家重点实验室
Very-high-cycle fatigue behavior of Ti-6Al-4V manufactured by selective laser melting: Effect of build orientation
Qian GA(钱桂安)1,2; Li YF(李彦峰)1,2; Paolino DS3; Tridello A3; Berto F4; Hong YS(洪友士)1,2
Corresponding AuthorHong, Youshi(hongys@imech.ac.cn)
Source PublicationINTERNATIONAL JOURNAL OF FATIGUE
2020-07-01
Volume136Pages:13
ISSN0142-1123
AbstractThe effect of building orientation on the very-high-cycle fatigue (VHCF) response of Ti-6Al-4V specimens produced through selective laser melting (SLM) process with three different building orientations (0 degrees, 45 degrees and 90 degrees) has been experimentally assessed. The fatigue performance decreases with different building orientations from 0 degrees to 90 degrees. The fatigue crack origin has been found to be always an internal defect both at high-cycle fatigue and VHCF regime independent of building orientations. Size of defects induced fatigue failures and the stress intensity factor range decrease with the number of cycles to failure. By considering the VHCF strength at 109 cycles, the median value decreases from 217 MPa (0 degrees) to 201 MPa (45 degrees) and finally to 155 MPa (90 degrees), with a 40% reduction from 0 degrees to 90 degrees. The building orientation significantly influences both the defect size and the resulting VHCF response.
KeywordHigh-cycle fatigue (HCF) Very-high-cycle fatigue (VHCF) Selective laser melting (SLM) Titanium alloy Building direction Fatigue design
DOI10.1016/j.ijfatigue.2020.105628
Indexed BySCI ; EI
Language英语
WOS IDWOS:000531534700046
WOS KeywordCRACK INITIATION ; SURFACE-ROUGHNESS ; LIFE PREDICTION ; CRITICAL PLANE ; EARLY GROWTH ; STRENGTH ; MICROSTRUCTURE ; MECHANISM ; CURVES ; REGIME
WOS Research AreaEngineering ; Materials Science
WOS SubjectEngineering, Mechanical ; Materials Science, Multidisciplinary
Funding ProjectNational Natural Science Foundation of China[11872364] ; National Natural Science Foundation of China[11932020] ; CAS Pioneer Hundred Talents Program
Funding OrganizationNational Natural Science Foundation of China ; CAS Pioneer Hundred Talents Program
Classification一类
Ranking1
ContributorHong, Youshi
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/82111
Collection非线性力学国家重点实验室
Affiliation1.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China;
2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China;
3.Politecn Torino, Dept Mech & Aerosp Engn, Turin 10129, Italy;
4.Norwegian Univ Sci & Technol NTNU, Dept Mech & Ind Engn, Richard Birkelands Vei 2b, Trondheim 7491, Norway
Recommended Citation
GB/T 7714
Qian GA,Li YF,Paolino DS,et al. Very-high-cycle fatigue behavior of Ti-6Al-4V manufactured by selective laser melting: Effect of build orientation[J]. INTERNATIONAL JOURNAL OF FATIGUE,2020,136:13.
APA 钱桂安,李彦峰,Paolino DS,Tridello A,Berto F,&洪友士.(2020).Very-high-cycle fatigue behavior of Ti-6Al-4V manufactured by selective laser melting: Effect of build orientation.INTERNATIONAL JOURNAL OF FATIGUE,136,13.
MLA 钱桂安,et al."Very-high-cycle fatigue behavior of Ti-6Al-4V manufactured by selective laser melting: Effect of build orientation".INTERNATIONAL JOURNAL OF FATIGUE 136(2020):13.
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