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Fatigue properties of titanium alloy custom short stems fabricated by electron beam melting
Wang, Liao1; Li, Shujun2; Yan, Mengning1; Cheng, Yubo3; Hou, Wentao2; Wang, Yiping3; Ai, Songtao1; Yang, Rui2; Dai, Kerong1
Corresponding AuthorLi, Shujun(shjli@imr.ac.cn) ; Yan, Mengning(yanmengning@163.com)
2020-09-01
Source PublicationJOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN1005-0302
Volume52Pages:180-188
AbstractThe fatigue properties of titanium alloy short-stems with four different lengths, manufactured by electron beam melting (EBM) technology, were investigated by in vitro test and finite element (FE) analysis. FE simulation results indicate that the maximum tensile stress concentrates at the lateral side of the stem body. The magnitude of the concentrated tensile stress increases and the corresponding area of the axial section decreases with increasing of stem length. Results from fatigue tests demonstrate that fatigue cracks mainly initiate from the rough surface of the stem where the maximum tensile stress concentrates. The fatigue strength decreases with the increase of stem length, which is attributed to the higher stress concentration on the longer stem surface. In addition, it is found that post EBM treatment via hot isostatic processing (HIP) is able to enhance the fatigue properties of the stems, since the pores generated during EBM are mostly closed during HIP. Our work also demonstrates that the stress concentration on the stem surface can be effectively mitigated and the corresponding fatigue properties of the EBM-fabricated titanium alloy short stem can be considerably improved by optimizing the design in the stem length. (C) 2020 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
KeywordCustom short stem Titanium alloy Electron beam melting Fatigue property
Funding OrganizationChinese MoST ; Key Research Program of Frontier Sciences, CAS ; National Natural Science Foundation of China ; Science and Technology Commission of Shanghai Municipality ; Shanghai Jiao Tong University
DOI10.1016/j.jmst.2020.02.047
Indexed BySCI
Language英语
Funding ProjectChinese MoST[2017YFC1104903] ; Key Research Program of Frontier Sciences, CAS[QYZDJ-SSW-JSC031-02] ; National Natural Science Foundation of China[81772425] ; National Natural Science Foundation of China[51631007] ; National Natural Science Foundation of China[51871220] ; Science and Technology Commission of Shanghai Municipality[16441908700] ; Shanghai Jiao Tong University[YG2016MS11]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000544218600017
PublisherJOURNAL MATER SCI TECHNOL
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/139611
Collection中国科学院金属研究所
Corresponding AuthorLi, Shujun; Yan, Mengning
Affiliation1.Shanghai Jiao Tong Univ, Sch Med, Shanghai Peoples Hosp 9, Dept Orthopaed Surg,Shanghai Key Lab Orthopaed Im, Shanghai 200030, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Titanium Alloy Lab, Shenyang 110016, Peoples R China
3.Image Medraw Technol Shanghai Co Ltd, Shanghai 201100, Peoples R China
Recommended Citation
GB/T 7714
Wang, Liao,Li, Shujun,Yan, Mengning,et al. Fatigue properties of titanium alloy custom short stems fabricated by electron beam melting[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2020,52:180-188.
APA Wang, Liao.,Li, Shujun.,Yan, Mengning.,Cheng, Yubo.,Hou, Wentao.,...&Dai, Kerong.(2020).Fatigue properties of titanium alloy custom short stems fabricated by electron beam melting.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,52,180-188.
MLA Wang, Liao,et al."Fatigue properties of titanium alloy custom short stems fabricated by electron beam melting".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 52(2020):180-188.
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