Quantification of internal dislocation density using scanning transmission electron microscopy in ultrafine grained pure aluminium fabricated by severe plastic deformation

Yoji Miyajima, Masatoshi Mitsuhara, Satoshi Hata, Hideharu Nakashima, Nobuhiro Tsuji

Research output: Contribution to journalArticlepeer-review

59 Citations (Scopus)

Abstract

Dislocation density within ultrafine grains in severely deformed aluminium was evaluated by the scanning transmission electron microscopy. The values were around 1014m-2 in commercial pure aluminium samples with equivalent strain up to 10. The obtained dislocation densities values correspond to strength between 55MPa and 70MPa according to the Bailey-Hirsch relationship.

Original languageEnglish
Pages (from-to)776-779
Number of pages4
JournalMaterials Science and Engineering A
Volume528
Issue number2
DOIs
Publication statusPublished - Dec 15 2010

All Science Journal Classification (ASJC) codes

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

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