In situ evaluation of corrosion damage using non-destructive electrochemical measurements-A case study

Authors

Sina S. Jamali, University of WollongongFollow
Yue Zhao, University of WollongongFollow
Zhiming Gao, Tianjin UniversityFollow
Hui Jun Li, University of WollongongFollow
Ay Ching Hee, University of WollongongFollow

RIS ID

110381

Publication Details

Jamali, S. S., Zhao, Y., Gao, Z., Li, H. & Hee, A. (2016). In situ evaluation of corrosion damage using non-destructive electrochemical measurements-A case study. Journal of Industrial and Engineering Chemistry, 43 36-43.

Abstract

Field application of electrochemical measurements with a non-invasive electrode arrangement has been used for investigating corrosion damage and protectiveness of a paint coating on an artwork sculpture. For this field application solid state probes were designed and used in electrochemical impedance spectroscopy (EIS) and electrochemical noise measurement (ENM) to evaluate the level of corrosion protection afforded by the paint coating. Samples were also analyzed in laboratory using analytical techniques. Results of electrochemical measurements indicated poor protective properties of the paint coating while analytical examinations revealed an inhomogeneous structure of the coating and a highly porous structure of the oxide scale.