Extending creep and superplasticity to materials with submicrometer grain sizes

Megumi Kawasaki, Cheng Xu, Zenji Horita, Terence G. Langdon

Research output: Contribution to journalArticle

Abstract

The mechanisms of creep and superplasticity occurring in conventional large-grained materials are now understood reasonably well. However, very recent advances in the processing of theoretically-dense metals with submicrometer grain sizes have provided the opportunity to extend the understanding of flow behavior to include materials where the grains are exceptionally small. Using processing through the application of severe plastic deformation, as in procedures such as equal-channel angular pressing, it is now feasible to fabricate relatively large samples having ultrafine grain sizes in the submicrometer or nanometer range. This paper examines these recent advances and gives examples of the flow behavior in ultrafine-grained aluminum alloys.

Original languageEnglish
Pages (from-to)539-544
Number of pages6
JournalKey Engineering Materials
Volume345-346 I
Publication statusPublished - May 21 2007

Fingerprint

Superplasticity
Creep
Equal channel angular pressing
Processing
Aluminum alloys
Plastic deformation
Metals
Ultrafine

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Kawasaki, M., Xu, C., Horita, Z., & Langdon, T. G. (2007). Extending creep and superplasticity to materials with submicrometer grain sizes. Key Engineering Materials, 345-346 I, 539-544.

Extending creep and superplasticity to materials with submicrometer grain sizes. / Kawasaki, Megumi; Xu, Cheng; Horita, Zenji; Langdon, Terence G.

In: Key Engineering Materials, Vol. 345-346 I, 21.05.2007, p. 539-544.

Research output: Contribution to journalArticle

Kawasaki, M, Xu, C, Horita, Z & Langdon, TG 2007, 'Extending creep and superplasticity to materials with submicrometer grain sizes', Key Engineering Materials, vol. 345-346 I, pp. 539-544.
Kawasaki M, Xu C, Horita Z, Langdon TG. Extending creep and superplasticity to materials with submicrometer grain sizes. Key Engineering Materials. 2007 May 21;345-346 I:539-544.
Kawasaki, Megumi ; Xu, Cheng ; Horita, Zenji ; Langdon, Terence G. / Extending creep and superplasticity to materials with submicrometer grain sizes. In: Key Engineering Materials. 2007 ; Vol. 345-346 I. pp. 539-544.
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