Fatigue properties of titanium alloy custom short stems fabricated by electron beam melting

doi:10.1016/j.jmst.2020.02.047

IMR OpenIR

	Fatigue properties of titanium alloy custom short stems fabricated by electron beam melting
	Wang, Liao 1; Li, Shujun 2; Yan, Mengning 1; Cheng, Yubo 3; Hou, Wentao 2; Wang, Yiping 3; Ai, Songtao 1; Yang, Rui 2; Dai, Kerong 1
通讯作者	Li, Shujun(shjli@imr.ac.cn) ; Yan, Mengning(yanmengning@163.com)
	2020-09-01
发表期刊	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN	1005-0302
卷号	52 页码:180-188
摘要	The 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.
关键词	Custom short stem Titanium alloy Electron beam melting Fatigue property
资助者	Chinese 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
DOI	10.1016/j.jmst.2020.02.047
收录类别	SCI
语种	英语
资助项目	Chinese 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研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
WOS类目	Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000544218600017
出版者	JOURNAL MATER SCI TECHNOL
引用统计	被引频次：11[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/321006/139611
专题	中国科学院金属研究所
通讯作者	Li, Shujun; Yan, Mengning
作者单位	1.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
推荐引用方式 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.