Effects of dynamic electropulsing on microstructure and elongation of a Zn-Al alloy

Y. H. Zhu, Suet To, Wing Bun Lee, X. M. Liu, Y. B. Jiang, G. Y. Tang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

106 Citations (Scopus)

Abstract

The effects of the electropulsing on microstructural evolution and on the elongation of the ZA22 alloy were studied during tensile deformation. The microsturctural evolution was examined by using scanning electron microscopy and transmission electron microscopy. Uniaxial tensile test showed that with adequate electropulsing, the best elongation of the alloy was obtained at ambient temperature (28 °C) and a high deformation rate (2 mm/min), remained the instant tensile stress unchanged. The elongation increased by 437%, compared with that of the non-electropulsing treated alloy. The relationship between the elongation and the electropulsing is discussed from the point of view of dislocation dynamic and phase transformation.
Original languageEnglish
Pages (from-to)125-132
Number of pages8
JournalMaterials Science and Engineering A
Volume501
Issue number1-2
DOIs
Publication statusPublished - 15 Feb 2009

Keywords

  • Dislocation
  • Electropulsing
  • Elongation
  • Phase transformation
  • Tensile deformation
  • Zn-Al alloys

ASJC Scopus subject areas

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

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