Compressive and fatigue behavior of functionally graded Ti-6Al-4V meshes fabricated by electron beam melting

doi:10.1016/j.actamat.2018.02.060

IMR OpenIR

	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
通讯作者	Li, S. J.(shjli@imr.ac.cn) ; Zhang, L. C.(l.zhang@ecu.edu.au)
	2018-05-15
发表期刊	ACTA MATERIALIA
ISSN	1359-6454
卷号	150 页码:1-15
摘要	In 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.
关键词	Metallic cellular materials Functionally graded High fatigue strength High energy absorption Static and cyclic deformation
资助者	National Key Research and Development Program of China ; National Natural Science Foundation of China ; Key Research Program of Frontier Sciences, CAS ; Australian Research Council
DOI	10.1016/j.actamat.2018.02.060
收录类别	SCI
语种	英语
资助项目	National 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研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000433272400001
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：165[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/128387
专题	中国科学院金属研究所
通讯作者	Li, S. J.; Zhang, L. C.
作者单位	1.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
推荐引用方式 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.