Microstructure and mechanical properties of open-cellular biomaterials prototypes for total knee replacement implants fabricated by electron beam melting

IMR OpenIR

	Microstructure and mechanical properties of open-cellular biomaterials prototypes for total knee replacement implants fabricated by electron beam melting
	L. E. Murr; K. N. Amato; S. J. Li; Y. X. Tian; X. Y. Cheng; S. M. Gaytan; E. Martinez; P. W. Shindo; F. Medina; R. B. Wicker
	2011
发表期刊	Journal of the Mechanical Behavior of Biomedical Materials
ISSN	1751-6161
卷号	4 期号:7 页码:1396-1411
摘要	Total knee replacement implants consisting of a Co-29Cr-6Mo alloy femoral component and a Ti-6Al-4V tibial component are the basis for the additive manufacturing of novel solid, mesh, and foam monoliths using electron beam melting (EBM). Ti-6Al-4V solid prototype microstructures were primarily alpha-phase acicular platelets while the mesh and foam structures were characterized by alpha'-martensite with some residual alpha. The Co-29Cr-6Mo containing 0.22% C formed columnar (directional) Cr(23)C(6) carbides spaced similar to 2 mu m in the build direction, while HIP-annealed Co-Cr alloy exhibited an intrinsic stacking fault microstructure. A log-log plot of relative stiffness versus relative density for Ti-6Al-4V and Co-29Cr-6Mo open-cellular mesh and foams resulted in a fitted line with a nearly ideal slope, n = 2.1. A stress shielding design graph constructed from these data permitted mesh and foam implant prototypes to be fabricated for compatible bone stiffness. (C) 2011 Elsevier Ltd. All rights reserved.
部门归属	[murr, l. e.; amato, k. n.; gaytan, s. m.; martinez, e.; shindo, p. w.] univ texas el paso, dept met & mat engn, el paso, tx 79968 usa. [murr, l. e.; amato, k. n.; gaytan, s. m.; martinez, e.; shindo, p. w.; medina, f.; wicker, r. b.] univ texas el paso, wm keck ctr innovat 3d, el paso, tx 79968 usa. [wicker, r. b.] univ texas el paso, dept mech engn, el paso, tx 79968 usa. [li, s. j.; tian, y. x.; cheng, x. y.] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china.;murr, le (reprint author), univ texas el paso, dept met & mat engn, el paso, tx 79968 usa;lemurr@utep.edu
关键词	Biomedical Applications Titanium-alloys Scaffolds Foams Design
URL	查看原文
WOS记录号	WOS:000294187500050
引用统计	被引频次：196[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/321006/30597
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	L. E. Murr,K. N. Amato,S. J. Li,et al. Microstructure and mechanical properties of open-cellular biomaterials prototypes for total knee replacement implants fabricated by electron beam melting[J]. Journal of the Mechanical Behavior of Biomedical Materials,2011,4(7):1396-1411.
APA	L. E. Murr.,K. N. Amato.,S. J. Li.,Y. X. Tian.,X. Y. Cheng.,...&R. B. Wicker.(2011).Microstructure and mechanical properties of open-cellular biomaterials prototypes for total knee replacement implants fabricated by electron beam melting.Journal of the Mechanical Behavior of Biomedical Materials,4(7),1396-1411.
MLA	L. E. Murr,et al."Microstructure and mechanical properties of open-cellular biomaterials prototypes for total knee replacement implants fabricated by electron beam melting".Journal of the Mechanical Behavior of Biomedical Materials 4.7(2011):1396-1411.

条目包含的文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Microstructure and m（6873KB）			开放获取	--