•  
  •  
 

Corresponding Author

Shi-zhe SONG

Abstract

An electrochemical technique to detect the defects and detachments of the protective coating on the steel structures with electrochemical impedance spectroscopy (EIS) was offered. A new parameter K, which was defined as the ratio of the electrode resistance amplitude at a certain frequency to that at minimal frequency was obtained in present paper. The results indicated that the change of K at a certain range of frequency reflected the condition of protective coating. The technique was found to be very useful in estimating the different conditions of protective coating after being applied to the carbon steel samples covered with tar asphalt which were buried in soil and subjected to cathodic protection.

Keywords

Protective Coatings, Electrochemical Impedance Spectroscopy (EIS), Coating Defect, Damaged Coating, Disbonded Coating

Publication Date

1999-05-28

Online Available Date

1999-05-28

Revised Date

1999-01-09

Received Date

1998-12-12

Download

Share

COinS
 
 

To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.