Abstract
Gradient-porous Titanium alloys can be applied to manufacturing implants for bone replacement, due to their good biological and mechanical compatibility. In this work, the feasibility of fabricating gradient-porous Titanium by centrifugal deposition and vacuum sintering was investigated. The apparent porosity of the gradient-porous Ti examined by Archimedes method is 56%. And the open pores occupy 89%. The pore structure was observed by an optical microscope. And its porosities at different radius were calculated by image software based on optical microscopic images. In addition, a nanoindentation was employed to characterize the mechanical properties at different radius. The results showed that the porosity of the sample increased with increasing of radius. Besides, both the elastic modulus and hardness changed alone radius with a same trend.
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