Experimental research on corrosion behavior of X65 pipeline steel induced by AC interference under cathodic protection

Xiaolong Li; Tao Meng; Renyang He; Jinzhong Chen; Zhengxiao Wang

doi:10.1117/12.3032378

19 June 2024 Experimental research on corrosion behavior of X65 pipeline steel induced by AC interference under cathodic protection

Xiaolong Li, Tao Meng, Renyang He, Jinzhong Chen, Zhengxiao Wang

Author Affiliations +

Proceedings Volume 13172, Ninth International Symposium on Energy Science and Chemical Engineering (ISESCE 2024) ; 131720Y (2024) https://doi.org/10.1117/12.3032378
Event: 9th International Symposium on Energy Science and Chemical Engineering, 2024, Nanjing, China

Abstract

The corrosion behavior of pipeline steel under the interference of stray current under cathodic protection was studied by means of electrochemical experiment. The results show that with the increase of AC current density, the corrosion potential of pipeline steel shifts negatively and the tendency of metal corrosion increases. Ac interference promoted the anodic oxidation reaction in positive half cycle of AC, and the corrosion rate of pipeline steel increased. The increase of AC frequency shorens the corrosion time of AC positive half-cycle pipeline steel, reduces the Faraday current that promotes metal oxidation reaction, and decreases the corrosion rate of pipeline steel.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Xiaolong Li, Tao Meng, Renyang He, Jinzhong Chen, and Zhengxiao Wang "Experimental research on corrosion behavior of X65 pipeline steel induced by AC interference under cathodic protection", Proc. SPIE 13172, Ninth International Symposium on Energy Science and Chemical Engineering (ISESCE 2024) , 131720Y (19 June 2024); https://doi.org/10.1117/12.3032378

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