Influence of AC interference to corrosion of Q235 carbon steel. (August 2013)

• Record Type: Journal Article
• Authors: Li, Y T; Li, X; Cai, G W; Yang, L H
• Is Part Of: Corrosion engineering, science, and technology. Volume 48:Number 5(2013)
• Page Start: 322
• Page End: 326
• Publication Date: 2013-08
• Subjects: AC corrosion -- Carbon steel -- Soil; Corrosion and anti-corrosives -- Periodicals; 620.11223
• DOI: 10.1179/1743278212Y.0000000076
• Languages: English
• ISSNs: 1478-422X

Abstract

Abstract : The alternating current (AC) has a strong influence on the corrosion of carbon steel Q235 in soil. AC corrosion 1–3 was investigated by morphology observation, weight loss analysis and electrochemical measurement. The results of morphology observation and weight loss analysis showed that AC increased the corrosion rate and the influence was weakened when a protective layer was built up. The electrochemical tests confirmed that in the presence of AC, the corrosion potential shifted toward the negative direction and the exchange current density increased. 4–9