| 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 | |
| Source Publication | Journal of the Mechanical Behavior of Biomedical Materials
 |
| ISSN | 1751-6161 |
| Volume | 4Issue:7Pages:1396-1411 |
| Abstract | 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. |
| description.department | [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 |
| Keyword | Biomedical Applications Titanium-alloys Scaffolds Foams Design |
| URL | 查看原文 |
| WOS ID | WOS:000294187500050 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/30597 |
| Collection | 中国科学院金属研究所 |
| Recommended Citation 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. |
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