An investigation of the properties of an Al-Mg-Li-Zr alloy after equal-channel angular pressing

Patrick Berbon, Minoru Furukawa, Zenji Horita, Minoru Nemoto, Nikolai K. Tsenev, Ruslan Z. Valiev, Terence G. Langdon

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)

Abstract

Equal-channel angular (ECA) pressing is a procedure in which a high plastic strain is introduced into a material in order to produce an ultra-fine grain size. Experiments were conducted to investigate the properties of an Al-5.5% Mg-2.2% Li-0.12% Zr alloy, having an initial grain size of ∼400 μm, which was subjected to ECA pressing at 673 K to a true plastic strain of ∼3.7. This material contained grains and sub-grains with an average size of the order of 1 μm and with a structure which was reasonably stable up to temperatures of ∼700 K. As a result of this structural stability, the experiments demonstrate the feasibility of attaining high tensile ductility in this alloy at elevated temperatures.

Original languageEnglish
Pages (from-to)1013-1018
Number of pages6
JournalMaterials Science Forum
Volume217-222
Issue numberPART 2
DOIs
Publication statusPublished - 1996

All Science Journal Classification (ASJC) codes

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

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