A Method for Determining the Corrosion Rate of a Metal under a Thin Electrolyte Film. Issue 4 (15th January 2015)

• Record Type: Journal Article
• Authors: Shi, Yanzhuo; Tada, Eiji; Nishikata, Atsushi
• Is Part Of: Journal of the Electrochemical Society. Volume 162:Issue 4(2015)
• Page Start: C135
• Page End: C139
• Publication Date: 2015-01-15
• Subjects: Electrochemistry -- Periodicals; 541.3705
• DOI: 10.1149/2.0101504jes
• Languages: English
• ISSNs: 0013-4651

Abstract

Abstract : Electrochemical impedance spectroscopy (EIS) was applied to evaluate corrosion rates of steels covered with a thin electrolyte film. A two-electrode cell consisting of a pair of identical steel plates embedded in epoxy resin was used for the EIS measurements under the thin electrolyte film. A transmission line type equivalent circuit was employed to describe the EIS behavior. Using this method, a charge transfer resistance was successfully estimated under uneven current distributions. This technique was applied to estimate the corrosion rates of steels under electrolyte film thickness in a range of 5 μm to 1 mm.