Achieving enhanced ductility in a dilute magnesium alloy through severe plastic deformation

Kiyoshi Matsubara, Yuichi Miyahara, Zenji Horita, Terence G. Langdon

Research output: Contribution to journalArticle

51 Citations (Scopus)

Abstract

Experiments were conducted to evaluate the utility of a new processing procedure developed for Mg-based alloys in which samples are subjected to a two-step processing route of extrusion followed by equal-channel angular pressing (designated as EX-ECAP). The experiments were conducted using a Mg-0.6 wt pct Zr alloy and, for comparison purposes, samples of pure Mg. It is shown that the potential for successfully using ECAP increases in both materials when adopting the EX-ECAP procedure. For the Mg-Zr alloy, the use of EX-ECAP produces a grain size of ∼1.4 μm when the pressing is undertaken at 573 K. By contrast, using EX-ECAP with pure Mg at 573 K produces a grain size of ∼26 μm. Tensile testing of the Mg-Zr alloy at 523 and 573 K after processing by EX-ECAP revealed the occurrence of significantly enhanced ductilities with maximum elongations of ∼300 to 400 pct.

Original languageEnglish
Pages (from-to)1735-1744
Number of pages10
JournalMetallurgical and Materials Transactions A: Physical Metallurgy and Materials Science
Volume35 A
Issue number6
DOIs
Publication statusPublished - Jan 1 2004

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magnesium alloys
Magnesium alloys
ductility
plastic deformation
Ductility
Plastic deformation
pressing
Processing
grain size
Equal channel angular pressing
Tensile testing
elongation
Extrusion
Elongation
Experiments
routes
occurrences

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanics of Materials
  • Metals and Alloys

Cite this

Achieving enhanced ductility in a dilute magnesium alloy through severe plastic deformation. / Matsubara, Kiyoshi; Miyahara, Yuichi; Horita, Zenji; Langdon, Terence G.

In: Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, Vol. 35 A, No. 6, 01.01.2004, p. 1735-1744.

Research output: Contribution to journalArticle

Matsubara, Kiyoshi ; Miyahara, Yuichi ; Horita, Zenji ; Langdon, Terence G. / Achieving enhanced ductility in a dilute magnesium alloy through severe plastic deformation. In: Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science. 2004 ; Vol. 35 A, No. 6. pp. 1735-1744.
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