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

خلاصه مقاله

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 α-phase acicular platelets while the mesh and foam structures were characterized by α′-martensite with some residual α. The Co–29Cr–6Mo containing 0.22% C formed columnar (directional) Cr₂₃C₆ carbides spaced ∼2 μm 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

نویسندگان

L.E. Murr [ Department of Metallurgical and Materials Engineering, The University of Texas at El Paso, El Paso, TX 79968, USA ]

K.N. Amato [ Department of Metallurgical and Materials Engineering, The University of Texas at El Paso, El Paso, TX 79968, USA ]

S.J. Li [ Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China ]

Y.X. Tian [ Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China ]

X.Y. Cheng [ Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China ]

کلمات کلیدی

Microstructure mechanical properties cellular biomaterials prototypes total knee replacement

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مشاهده مقالات

Journal of the Mechanical Behavior of Biomedical Materials

The Journal of the Mechanical Behavior of Biomedical Materials is concerned with the mechanical deformation, damage and failure under applied forces, of biological material (at the tissue, cellular and molecular levels) and of biomaterials, i.e. those materials which are designed to mimic or replace biological materials.

حوزه های تحت پوشش : mechanical deformation, damage and failure