Indentation behavior of aluminum processed by equal channel angular extrusion: Effect of bending angle

Fuqian Yang, Kenji Okazaki

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Microindentation has been used to characterize the indentation behavior of aluminum processed by ECAE (equal channel angular extrusion). The bending angles of the ECAE dies are 90°, 120° and 150°. Using dislocation dynamics, it is found that the initial dislocation density increases with the decrease in the bending angle at the macroscopic yielding during the indentation. For the same indentation load, the plastic energy dissipated in the indentation increases with increasing bending angle.

Original languageEnglish
Pages (from-to)185-188
Number of pages4
JournalScripta Materialia
Volume56
Issue number3
DOIs
StatePublished - Feb 2007

Bibliographical note

Funding Information:
This work is supported by Kentucky Science and Engineering Foundation through a grant KSEF-148-502-03-73. L.L. Peng did the indentation experiments.

Keywords

  • Bending angle
  • ECAE
  • Indentation
  • Stress-strain relation

ASJC Scopus subject areas

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

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