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Effects of Loading Frequency and Specimen Geometry on High Cycle and Very High Cycle Fatigue Life of a High Strength Titanium Alloy
Li YQ; Song QY; Feng SC; Sun CQ(孙成奇)
Source PublicationMATERIALS
2018-09-01
Volume11Issue:9Pages:1628
ISSN1996-1944
AbstractTitanium alloys have been widely used in the structural parts of deep-sea equipment and aviation industries. In this paper, the effects of loading frequency and specimen geometry on the high cycle and very high cycle fatigue life of the high strength titanium alloy Ti-6Al-2Sn-2Zr-3Mo-X is investigated by conventional fatigue test and ultrasonic frequency fatigue test. The results indicate that ultrasonic frequency could enhance the fatigue life of the highstrength titanium alloy compared with that under conventional frequency, and the frequency effect is related to the stress amplitude. This phenomenon is explained by the heat generation in specimens and heat dissipation, in combination with the high strain rate leading to the higher yield strength in the ultrasonic fatigue test. Moreover, it is indicated that the effect of specimen geometry on the fatigue life of the highstrength titanium alloy could be evaluated from the view of control volume.
Keywordhigh cycle fatigue very high cycle fatigue frequency effect specimen geometry effect high strength titanium alloy
DOI10.3390/ma11091628
URL查看原文
Indexed BySCI ; EI
Language英语
WOS IDWOS:000446395200144
WOS KeywordFRACTURE-MECHANICS ; CRACK INITIATION ; TI-6AL-4V ALLOY ; STEEL ; SIZE ; REGIME ; MODEL
WOS Research AreaMaterials Science, Multidisciplinary
WOS SubjectMaterials Science
Funding OrganizationNational Key Research and Development Program of China [2016YFC0300600]
Classification二类
Ranking1
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/77941
Collection非线性力学国家重点实验室
Affiliation1.China Ship Sci Res Ctr, State Key Lab Deep Sea Manned Vehicles, Wuxi 214082, Peoples R China
2.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China
3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Li YQ,Song QY,Feng SC,et al. Effects of Loading Frequency and Specimen Geometry on High Cycle and Very High Cycle Fatigue Life of a High Strength Titanium Alloy[J]. MATERIALS,2018,11(9):1628.
APA Li YQ,Song QY,Feng SC,&孙成奇.(2018).Effects of Loading Frequency and Specimen Geometry on High Cycle and Very High Cycle Fatigue Life of a High Strength Titanium Alloy.MATERIALS,11(9),1628.
MLA Li YQ,et al."Effects of Loading Frequency and Specimen Geometry on High Cycle and Very High Cycle Fatigue Life of a High Strength Titanium Alloy".MATERIALS 11.9(2018):1628.
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