Paper Title:
Improvement of Strength of Lotus-Type Porous Aluminum through ECAE Process
  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.

  Info
Periodical
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
T. B. Kim, M. Tane, S. Suzuki, T. Ide, H. Utsunomiya, H. Nakajima, "Improvement of Strength of Lotus-Type Porous Aluminum through ECAE Process", Materials Science Forum, Vol. 695, pp. 263-266, 2011
Online since
July 2011
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