Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/33593
Title: Dynamic electropulsing induced phase transformations in a furnace cooled Zn-Al based alloy (ZA22)
Authors: To, S 
Zhu, YH
Lee, WB 
Liu, XM
Keywords: Electron back-scattered diffraction (EBSD)
Electropulsing
Phase transformations
Tensile deformation
Zinc-aluminum alloy
Issue Date: 2010
Source: Materials transactions, 2010, v. 51, no. 11, p. 1997-2004 How to cite?
Journal: Materials Transactions 
Abstract: Multi-phase identification and phase transformations in a dynamic electropulsing treated Zn-Al based alloy (ZA22) were studied by using backscattered scanning electron microscopy (BSEM) and electron back-scattered diffraction techniques (EBSD). By using EBSD, two hep phases η′s and η′T with a small difference of about 1% in lattice parameters (c/a) were discriminated. Two stages of phase transformations: (a) η′s → η′T + ε′T + α′T and ε + α→T′ + η (in a way of quenching), and (b) T′ + η → ε + α and η′T + ε′T + α′T η′s (in a way of upquenching), were detected. It was found that dynamic electropulsing was less effective in accelerating phase transformations than static electropusling. The mechanism of dynamic electropulsing induced phase transformations is discussed from the point view of Gibbs free energy and electropulsing kinetics.
URI: http://hdl.handle.net/10397/33593
ISSN: 1345-9678
DOI: 10.2320/matertrans.M2010130
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