Paper Title:
Improvement of Strength of Lotus-Type Porous Aluminum through ECAE Process
| Periodical | Materials Science Forum (Volume 695) |
|---|---|
| Main Theme | Eco-Materials Processing and Design XII |
| Edited by | Hyungsun Kim, Jian Feng Yang, Chuleol Hee Han, Somchai Thongtem and Soo Wohn Lee |
| Pages | 263-266 |
| DOI | 10.4028/www.scientific.net/MSF.695.263 |
| Citation | Tae Bum Kim et al., 2011, Materials Science Forum, 695, 263 |
| Online since | July, 2011 |
| Authors | Tae Bum Kim, Masakazu Tane, Shinsuke Suzuki, Takuya Ide, Hiroshi Utsunomiya, Hideo Nakajima |
| Keywords | Aluminum, Equal Channel Angular Extrusion (ECAE), Porous Metal, Vickers Hardness |
| Price | US$ 28,- |
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Abstract
Lotus-type porous aluminum with cylindrical pores oriented in one direction was deformed by Equal Channel Angular Extrusion (ECAE) through a 150° die with sequential 180° rotations, and the pore morphology and Vickers hardness after the extrusion were investigated. The Vickers hardness increases with increasing number of passes in the extrusions both parallel and perpendicular to the pore direction, accompanied by the decrease of porosity. The densification occurs more easily in the perpendicular extrusions than in the parallel extrusions, and the large deformation by the densification gives rise to the large increase in the Vickers hardness for the perpendicular extrusions.
