Improvement of strength of lotus-type porous aluminum through ECAE process

Tae Bum Kim*, Masakazu Tane, Shinsuke Suzuki, Takuya Ide, Hiroshi Utsunomiya, Hideo Nakajima

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)


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.

Original languageEnglish
Title of host publicationEco-Materials Processing and Design XII
PublisherTrans Tech Publications Ltd
Number of pages4
ISBN (Print)9783037852224
Publication statusPublished - 2011
Externally publishedYes

Publication series

NameMaterials Science Forum
ISSN (Print)0255-5476
ISSN (Electronic)1662-9752


  • Aluminum
  • Equal channel angular extrusion
  • Porous metals
  • Vickers hardness

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


Dive into the research topics of 'Improvement of strength of lotus-type porous aluminum through ECAE process'. Together they form a unique fingerprint.

Cite this