Equal-channel angular pressing as a production tool for superplastic materials

Zenji Horita, S. Lee, S. Ota, K. Neishi, T. G. Langdon

Research output: Contribution to journalConference article

11 Citations (Scopus)

Abstract

Equal-channel angular pressing (ECAP) was applied for grain refinement of Al-3%Mg-0.2%Fe and Al-3%Mg-0.2%Ti alloys and also for a commercial Al 2024 alloy. The grain sizes of the alloys were reduced to ∼0.3 μm. The stability of the fine-grained structures were examined and it was found that the small grains remained stable up to the temperatures of ∼250°C for the Al-3%Mg-0.2%Fe and Al-3%Mg-0.2%Ti alloys and ∼400°C for the Al 2024 alloy. Tensile tests revealed maximum elongations of ∼370% and ∼180% in the Al-3%Mg-0.2%Fe and Al-3%Mg-0.2%Ti alloys, respectively, at a temperature of 250°C with an initial strain rate of 3.3×10-4 s-1. There is some evidence for low temperature superplasticity in the Al-3%Mg-0.2%Fe alloy. A maximum elongation of ∼460% was attained in the Al 2024 alloy at 400°C with an initial strain rate of 10-3 s-1. It is demonstrated that the ECAP can be effective in producing superplastic materials.

Original languageEnglish
Pages (from-to)471-476
Number of pages6
JournalMaterials Science Forum
Volume357-359
Publication statusPublished - May 29 2001
EventSuperplasticity in Advanced Materials (ICSAM-2000) - Orlando, FL, United States
Duration: Aug 1 2000Aug 4 2000

Fingerprint

Equal channel angular pressing
pressing
elongation
strain rate
Strain rate
Elongation
superplasticity
Superplasticity
Grain refinement
tensile tests
Temperature
grain size
fine structure
temperature

All Science Journal Classification (ASJC) codes

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

Cite this

Horita, Z., Lee, S., Ota, S., Neishi, K., & Langdon, T. G. (2001). Equal-channel angular pressing as a production tool for superplastic materials. Materials Science Forum, 357-359, 471-476.

Equal-channel angular pressing as a production tool for superplastic materials. / Horita, Zenji; Lee, S.; Ota, S.; Neishi, K.; Langdon, T. G.

In: Materials Science Forum, Vol. 357-359, 29.05.2001, p. 471-476.

Research output: Contribution to journalConference article

Horita, Z, Lee, S, Ota, S, Neishi, K & Langdon, TG 2001, 'Equal-channel angular pressing as a production tool for superplastic materials', Materials Science Forum, vol. 357-359, pp. 471-476.
Horita Z, Lee S, Ota S, Neishi K, Langdon TG. Equal-channel angular pressing as a production tool for superplastic materials. Materials Science Forum. 2001 May 29;357-359:471-476.
Horita, Zenji ; Lee, S. ; Ota, S. ; Neishi, K. ; Langdon, T. G. / Equal-channel angular pressing as a production tool for superplastic materials. In: Materials Science Forum. 2001 ; Vol. 357-359. pp. 471-476.
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