|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Powder Metallurgy of Light, Reactive and Other Non-ferrous Metals
||Effects of Geometry Anisotropy on Fluid-flow and Mechanical Properties of Titanium Foams
||Chedtha Puncreobutr, Sedthawatt Sucharitpwatskul, Anchalee Manonukul
|On-Site Speaker (Planned)
Titanium foams are presently used in various biological and engineering applications due to their lightweight structure with excellent mechanical properties. Of many P/M methods, replica impregnation method presents ability to shape complex porous structures with varied porosity levels. However, the geometry anisotropy nature of polymer template might affect flow behavior and mechanical properties of the final metallic foams. In this work, the x-ray tomography technique was used to quantitively characterize three-dimensional structure of open-cell titanium foams, with four different porosities, fabricated by the replica impregnation method. Computational fluid dynamics (CFD) and finite element analysis (FEA) were also performed on the captured 3D-structures to understand the relationship between structural parameters and flow/mechanical responses. The simulations were performed both in direction parallel (elongated cells) and perpendicular (equiaxed cells) to foaming direction. The results show that the present degree of geometry anisotropy is not sufficient to give significant anisotropic flow and mechanical properties.
||Planned: Supplemental Proceedings volume