IMECH-IR  > 非线性力学国家重点实验室
In-situ investigation on fatigue behaviors of Ti-6Al-4V manufactured by selective laser melting
Qian GA(钱桂安)1,2; Jian ZM1,2; Pan XN(潘向南)1,2; Berto F3
Corresponding AuthorQian, Guian(qianguian@imech.ac.cn)
Source PublicationINTERNATIONAL JOURNAL OF FATIGUE
2020-04-01
Volume133Pages:9
ISSN0142-1123
AbstractIn-situ fatigue tests were conducted for exploring the fatigue crack propagation process for Ti-6Al-4V manufactured by selective laser melting (SLM). Fatigue specimens were prepared with two printing orientations by SLM and characterized by scanning electron microscopy (SEM). In-situ fatigue experiments were carried out at 25 degrees C, 200 degrees C, 400 degrees C and 600 degrees C, respectively. Results show that vertically printed specimens have more and larger defects than horizontally printed ones. The fatigue property of horizontally printed specimens is better than that of vertically printed specimens. The anisotropy caused by printing orientation is the reason for the difference in fatigue property. Crack propagation rate increases with temperature. A large number of secondary cracks occurred during the crack propagation at elevated temperature. The branching of secondary cracks releases the energy at the crack tip, and thus slows down the crack growth.
KeywordSelective laser melting In-situ SEM Ti-6Al-4V Low cycle fatigue Crack propagation
DOI10.1016/j.ijfatigue.2019.105424
Indexed BySCI ; EI
Language英语
WOS IDWOS:000510947500024
WOS KeywordHIGH-CYCLE FATIGUE ; PROPAGATION BEHAVIOR ; CRACK INITIATION ; LIFE PREDICTION ; CRITICAL PLANE ; MICROSTRUCTURE ; SPECIMENS ; ALLOY ; STEEL ; SLM
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
ContributorQian, Guian
Citation statistics
Cited Times:31[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/81539
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.Norwegian Univ Sci & Technol NTNU, Dept Mech & Ind Engn, Richard Birkelands Vei 2b, N-7491 Trondheim, Norway
Recommended Citation
GB/T 7714
Qian GA,Jian ZM,Pan XN,et al. In-situ investigation on fatigue behaviors of Ti-6Al-4V manufactured by selective laser melting[J]. INTERNATIONAL JOURNAL OF FATIGUE,2020,133:9.
APA 钱桂安,Jian ZM,潘向南,&Berto F.(2020).In-situ investigation on fatigue behaviors of Ti-6Al-4V manufactured by selective laser melting.INTERNATIONAL JOURNAL OF FATIGUE,133,9.
MLA 钱桂安,et al."In-situ investigation on fatigue behaviors of Ti-6Al-4V manufactured by selective laser melting".INTERNATIONAL JOURNAL OF FATIGUE 133(2020):9.
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