ISSN: 1546-962X
Published Online: 6 December 2007
Page Count: 26

Use of Coupled Multi-Electrode Arrays to Advance the Understanding of Selected Corrosion Phenomena

Cong, H.
Center for Electrochemical Science and Engineering, Department of Materials Science and Engineering, University of Virginia, Charlottesville,VA

Bocher, F.
Center for Electrochemical Science and Engineering, Department of Materials Science and Engineering, University of Virginia, Charlottesville,VA

Budiansky, N. D.
Current address: Exponent, Natick,MA

Hurley, M. F.
Current address: College of Engineering, Materials Science and Engineering, Boise State University, Boise,ID

Scully, J. R.
Center for Electrochemical Science and Engineering, Department of Materials Science and Engineering, University of Virginia, Charlottesville,VA

(Received 29 May 2007; accepted 30 October 2007)

Abstract

The use of coupled multi-electrode arrays in various corrosion applications is discussed with the main goal of advancing the understanding of various corrosion phenomena. Both close-packed and far-spaced electrode configurations are discussed. Far-spaced electrode arrays are optimized for high throughput experiments capable of elucidating the effects of various variables on corrosion properties. For instance, the effects of a statistical distribution of flaws on corrosion properties can be examined. Close-packed arrays enable unprecedented spatial and temporal information on the behavior of local anodes and cathodes. Interactions between corrosion sites can trigger or inhibit corrosion phenomena and affect corrosion damage evolution.

Keywords:
coupled multi-electrode array, carbon steel, copper, stainless steel, corrosion in concrete, crevice corrosion, intergranular corrosion, pitting corrosion

Paper ID: JAI101248
DOI: 10.1520/JAI101248
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