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Compressive and fatigue behavior of functionally graded Ti-6Al-4V meshes fabricated by electron beam melting
Zhao, S.1,4; Li, S. J.1; Wang, S. G.1; Hou, W. T.1; Li, Y.1; Zhang, L. C.2; Hao, Y. L.1; Yang, R.1; Misra, R. D. K.3; Murr, L. E.3
Corresponding AuthorLi, S. J.(shjli@imr.ac.cn) ; Zhang, L. C.(l.zhang@ecu.edu.au)
2018-05-15
Source PublicationACTA MATERIALIA
ISSN1359-6454
Volume150Pages:1-15
AbstractIn recent years, cellular metallic materials have attracted significant interest for biomedical applications. However, mutually opposing requirements of porous architecture and mechanical strength in conjunction with the high energy absorption capability have restricted their use. Here, we illustrate that electron beam melting can fabricate functionally graded Ti-6Al-4V alloy interconnected mesh structures with a combination of low density (0.5-2 g/cm(3)), high fatigue strength (similar to 70 MPa) and energy absorption (similar to 50 MJ/mg), which is superior to the ordinary uniform cellular structures. The underlying fundamental mechanisms governing the compressive and fatigue behavior of the graded cellular structures are elucidated via in situ tomography experiments and digital volume correlation analyses. It is underscored that during cyclic deformation, the stress can be continuously redistributed because of inhomogeneous mechanical properties and crack formation in constituent meshes, thereby resulting in variation of cyclic ratcheting rate for the graded cellular structures. (C) 2018 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
KeywordMetallic cellular materials Functionally graded High fatigue strength High energy absorption Static and cyclic deformation
Funding OrganizationNational Key Research and Development Program of China ; National Natural Science Foundation of China ; Key Research Program of Frontier Sciences, CAS ; Australian Research Council
DOI10.1016/j.actamat.2018.02.060
Indexed BySCI
Language英语
Funding ProjectNational Key Research and Development Program of China[2017YFC1104901] ; National Key Research and Development Program of China[2016YFC1102601] ; National Natural Science Foundation of China[51271182] ; National Natural Science Foundation of China[51631007] ; National Natural Science Foundation of China[51771209] ; National Natural Science Foundation of China[51571190] ; Key Research Program of Frontier Sciences, CAS[QYZDJ-SSW-JSC031-02] ; Australian Research Council[DP110101653]
WOS Research AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000433272400001
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:98[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/128387
Collection中国科学院金属研究所
Corresponding AuthorLi, S. J.; Zhang, L. C.
Affiliation1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China
2.Edith Cowan Univ, Sch Engn, 270 Joondalup Dr, Perth, WA 6027, Australia
3.Univ Texas El Paso, Dept Met Mat & Biomed Engn, El Paso, DC 79968 USA
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Zhao, S.,Li, S. J.,Wang, S. G.,et al. Compressive and fatigue behavior of functionally graded Ti-6Al-4V meshes fabricated by electron beam melting[J]. ACTA MATERIALIA,2018,150:1-15.
APA Zhao, S..,Li, S. J..,Wang, S. G..,Hou, W. T..,Li, Y..,...&Murr, L. E..(2018).Compressive and fatigue behavior of functionally graded Ti-6Al-4V meshes fabricated by electron beam melting.ACTA MATERIALIA,150,1-15.
MLA Zhao, S.,et al."Compressive and fatigue behavior of functionally graded Ti-6Al-4V meshes fabricated by electron beam melting".ACTA MATERIALIA 150(2018):1-15.
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