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Home  >  Journal list  >  MATERIALS TRANSACTIONS  >  Vol.58  No.11 (2017)  >  pp.1587-1592

MATERIALS TRANSACTIONS
<<Previous article Vol.58  No.11 (2017)   pp.1587 - 1592 Next article>>

Compressive Behavior of Open-Cell Titanium Foams with Different Unit Cell Geometries

Xue-Zheng Yue1), Keiji Matsuo1), Koichi Kitazono1)
1) Graduate School of System Design, Tokyo Metropolitan University

Mechanical properties of open-cell titanium foams with different cell geometries (truncated octahedron and rhombic dodecahedron cells) were examined through compressive tests. These foams were manufactured through the electron beam melting (EBM) process. The compressive behavior depends on the porosity, cell geometry and the cell orientation. Titanium foams with truncated octahedron cells showed high strength compared to those of rhombic dodecahedron cells. This is due to the short cell edges in truncated octahedron cells. In addition, the parallel and oblique cell edges against the compression direction are effective to increase the compressive strength. Macroscopic shear bands caused by ordered cell geometry were observed in some titanium foams.




Keyword:
titanium foam, electron beam melting, truncated octahedron, rhombic dodecahedron

Received: May 30, 2017
Accepted: August 08, 2017 , Published online: October 25, 2017

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