Microstructural characteristics of ultrafine-grained aluminum produced using equal-channel angular pressing

Yoshinori Iwahashi, Minoru Furukawa, Zenji Horita, Minoru Nemoto, Terence G. Langdon

Research output: Contribution to journalArticle

272 Citations (Scopus)

Abstract

The shearing associated with equal-channel angular (EGA) pressing was examined using optical microscopy. Samples of pure Al with a large grain size were subjected to ECA pressing to different strains and then examined on three orthogonal planes. Samples were pressed without any rotation or with rotations of either 90 or 180 deg between each consecutive pressing. The experimental observations are compared with models which predict the shearing characteristics associated with ECA pressing under different conditions. It is demonstrated that there is good agreement, in terms of both the grain elongation and the shearing within individual grains, between the experimental results and the predictions of the models.

Original languageEnglish
Pages (from-to)2245-2252
Number of pages8
JournalMetallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
Volume29
Issue number9
DOIs
Publication statusPublished - Jan 1 1998
Externally publishedYes

Fingerprint

Equal channel angular pressing
pressing
Aluminum
Shearing
shearing
aluminum
Optical microscopy
Elongation
elongation
grain size
microscopy
Ultrafine
predictions

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys

Cite this

Microstructural characteristics of ultrafine-grained aluminum produced using equal-channel angular pressing. / Iwahashi, Yoshinori; Furukawa, Minoru; Horita, Zenji; Nemoto, Minoru; Langdon, Terence G.

In: Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, Vol. 29, No. 9, 01.01.1998, p. 2245-2252.

Research output: Contribution to journalArticle

Iwahashi, Yoshinori ; Furukawa, Minoru ; Horita, Zenji ; Nemoto, Minoru ; Langdon, Terence G. / Microstructural characteristics of ultrafine-grained aluminum produced using equal-channel angular pressing. In: Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science. 1998 ; Vol. 29, No. 9. pp. 2245-2252.
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