Effects of current density on electropulsing-induced phase transformations in a Zn-Al based alloy

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

Research output: Journal article publicationJournal articleAcademic researchpeer-review

25 Citations (Scopus)

Abstract

Phase transformations of an electropulsing-treated ZA22 alloy were studied after tensile deformation by using scanning electron microscopy and transmission electron microscopy. It was found that electropulsing tremendously accelerated phase transformations consequentially in the two stages: (a) quenching from supersaturated state approaching the final stable state, i.e., α+ε→T′+η, and (b) up-quenching from the final stable state to a higher temperature state, i.e., T′+η→α+ε. The mechanism of electropulsing-induced phase transformation is discussed from the point of view of Gibbs free energy, and electropulsing kinetics.
Original languageEnglish
Pages (from-to)939-944
Number of pages6
JournalApplied Physics A: Materials Science and Processing
Volume96
Issue number4
DOIs
Publication statusPublished - 1 Sep 2009

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)

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