Electrochemical assessment of interfacial characteristics of intermetallic phases present in aluminium alloy 2024-T3

  • Li J
  • Birbilis N
  • Buchheit R
  • 30


    Mendeley users who have this article in their library.
  • 21


    Citations of this article.


Impedance spectra for the secondary phase particles that populate in aluminium alloy 2024-T3 are presented. Such impedance data using an electrochemical microcell have not been previously reported, and were possible via a fast Fourier transform-based technique. The interfacial characteristics of intermetallic particles in NaCl and chromate solutions were described by a simplified Randles circuit. Impedance analysis, along with anodic polarization, demonstrated that Al2CuMg (S-phase) showed the highest dissolution propensity, while the other phases studied were net cathodes. Based on the capacitance measurements determined, the dealloying of S-phase was evaluated in-situ.

Author-supplied keywords

  • A. Intermetallics
  • B. EIS
  • B. Polarisation
  • C. Passive films

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document


Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free