Influence of channel geometry on superplasticity in equal-channel angular pressing

Masakazu Kamachi, Takayoshi Fujinami, Zenji Horita, Terence G. Langdon

Research output: Contribution to journalConference article

5 Citations (Scopus)

Abstract

Equal-channel angular pressing (ECAP) was conducted on an Al-l%Mg-0.2%Sc alloy using a die having a channel angle (Φ) of 90° but with two different angles, 0° and 90°, for the outer arc of curvature (Ψ). Microstructures were observed by optical microscopy and transmission electron microscopy to examine the effect of Ψ. Tensile tests were also conducted and the ductility was examined for the ECAP samples processed with the two different angles, Ψ=0° and Ψ=90°. It is shown that the microstructure was more homogeneous for Ψ=0° than Ψ=90°. However, larger ductility was obtained for the samples processed with Ψ=90° than Ψ=90°.

Original languageEnglish
Pages (from-to)477-482
Number of pages6
JournalMaterials Science Forum
Volume447-448
Publication statusPublished - Jul 27 2004
EventSuperplasticity in Advanced Materials: 8th International Conference on Superplasticity in Advanced Materials, ICSAM 2003 - Oxford, United Kingdom
Duration: Jul 28 2003Jul 30 2003

Fingerprint

superplasticity
Equal channel angular pressing
Superplasticity
pressing
Ductility
ductility
Microstructure
Geometry
Light transmission
geometry
Optical microscopy
microstructure
tensile tests
Transmission electron microscopy
arcs
curvature
microscopy
transmission electron microscopy

All Science Journal Classification (ASJC) codes

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

Cite this

Kamachi, M., Fujinami, T., Horita, Z., & Langdon, T. G. (2004). Influence of channel geometry on superplasticity in equal-channel angular pressing. Materials Science Forum, 447-448, 477-482.

Influence of channel geometry on superplasticity in equal-channel angular pressing. / Kamachi, Masakazu; Fujinami, Takayoshi; Horita, Zenji; Langdon, Terence G.

In: Materials Science Forum, Vol. 447-448, 27.07.2004, p. 477-482.

Research output: Contribution to journalConference article

Kamachi, M, Fujinami, T, Horita, Z & Langdon, TG 2004, 'Influence of channel geometry on superplasticity in equal-channel angular pressing', Materials Science Forum, vol. 447-448, pp. 477-482.
Kamachi M, Fujinami T, Horita Z, Langdon TG. Influence of channel geometry on superplasticity in equal-channel angular pressing. Materials Science Forum. 2004 Jul 27;447-448:477-482.
Kamachi, Masakazu ; Fujinami, Takayoshi ; Horita, Zenji ; Langdon, Terence G. / Influence of channel geometry on superplasticity in equal-channel angular pressing. In: Materials Science Forum. 2004 ; Vol. 447-448. pp. 477-482.
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