Achieving exceptional superplasticity in a bulk aluminum alloy processed by high-pressure torsion

Zenji Horita, Terence G. Langdon

Research output: Contribution to journalArticle

81 Citations (Scopus)

Abstract

Bulk specimens of an aluminum-magnesium-scandium alloy, in the form of small cylinders, were processed by high-pressure torsion at room temperature. Following processing, the microstructure was inhomogeneous with larger grains in the center and ultrafine grains of ∼130 nm at the periphery. Tensile testing after processing revealed the potential for achieving exceptional superplastic elongations but the measured elongations depended upon the positions of the specimens within the cylinder. The highest tensile elongation recorded in these experiments was 1600%.

Original languageEnglish
Pages (from-to)1029-1032
Number of pages4
JournalScripta Materialia
Volume58
Issue number11
DOIs
Publication statusPublished - Jun 1 2008

Fingerprint

superplasticity
Superplasticity
Torsional stress
aluminum alloys
elongation
torsion
Elongation
Aluminum alloys
Scandium alloys
scandium
Tensile testing
Processing
Magnesium alloys
Aluminum
magnesium
aluminum
microstructure
Microstructure
room temperature
Experiments

All Science Journal Classification (ASJC) codes

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

Cite this

Achieving exceptional superplasticity in a bulk aluminum alloy processed by high-pressure torsion. / Horita, Zenji; Langdon, Terence G.

In: Scripta Materialia, Vol. 58, No. 11, 01.06.2008, p. 1029-1032.

Research output: Contribution to journalArticle

Horita, Zenji ; Langdon, Terence G. / Achieving exceptional superplasticity in a bulk aluminum alloy processed by high-pressure torsion. In: Scripta Materialia. 2008 ; Vol. 58, No. 11. pp. 1029-1032.
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