Journal of Applied Electrochemistry

, Volume 22, Issue 2, pp 172–178 | Cite as

Phase-structure analysis of brass by anodic linear-sweep voltammetry

  • J. Stevanović
  • LJ. Skibina
  • M. Stefanović
  • A. Despić
  • V. D. Jović
Papers

Abstract

Anodic linear-sweep voltammetry (ALSV) was applied to electrodeposited alloy layers and to metallurgically obtained Cu−Zn alloys of different composition and structure. Metallurgically obtained samples covered the range of composition in which α, (α+β), β and (β+γ) intermediate phases were detected by X-ray. The ALSV of samples containing less than 30 wt % Zn exhibited a single peak at −0.08 to −0.1 V/SCE before massive dissolution, starting at about −0.05 V/SCE. The presence of the γ-phase gave another peak at a significantly more negative potential (−0.25 to −0.35 V/SCE). The ALSV of electrodeposited alloys were significantly more complex than the former, depending on the deposition potentials, with peaks attributable to pure Zn, to the ε-phase, to the η-phase as well as to the α-phase, present in most cases and dissolving at potentials similar to that of pure Cu. ALSV was shown to be a reliable and practical method for a fast determination of both the composition and the phase structure of electrodeposited brass.

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Copyright information

© Chapman & Hall 1992

Authors and Affiliations

  • J. Stevanović
    • 1
  • LJ. Skibina
    • 2
  • M. Stefanović
    • 3
  • A. Despić
    • 4
  • V. D. Jović
    • 5
  1. 1.Institute of ElectrochemistryICTMBeogradYugoslavia
  2. 2.Faculty of ChemistryRostov State UniversityRostov on DonUSSR
  3. 3.DP ‘Petar Drapŝin’MladenovacYugoslavia
  4. 4.Faculty of Technology and MetallurgyUniversity of BeogradBeogradYugoslavia
  5. 5.Institute of Technical Sciences of the Serbian Academy of Science and ArtsBeogradYugoslavia

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