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Micromachines
Volume 13
Issue 2
10.3390/mi13020190
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Article

Influence of Current on Soil Corrosion of Galvanized Steel of Grounding Grids

by
Linbo Song
1,
Cheng Zhang
1,
Jing Zhao
2,
Rui Yang
2 and
Yuan Yuan
1,*
1
College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China
2
State Grid Chongqing Electric Power Research Institute, Chongqing 401123, China
*
Author to whom correspondence should be addressed.
Micromachines 2022, 13(2), 190; https://doi.org/10.3390/mi13020190
Submission received: 30 December 2021 / Revised: 22 January 2022 / Accepted: 24 January 2022 / Published: 26 January 2022
(This article belongs to the Special Issue Corrosion and Etching at Micro/Nanoscale)
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Abstract

Grounding grid materials are vulnerable to soil corrosion, which is detrimental to the safe operation of the grounding grids and even lead to serious accidents of power transmission. In this paper, galvanized steel was used as the typical grounding grid material which was buried in the soil and then electrified with AC and DC current for two weeks. The corroded samples under different current conditions were characterized and compared. The experimental results show that the corrosion degree of galvanized steel gradually aggravated with the increasing of the current, especially under DC current. Further, the mechanism of the influence of current on soil corrosion is explored. It is found that under the same magnitude of current, the corrosion degree of galvanized steel under DC current is greater than that under AC current.
Keywords: galvanized steel; grounding grids; corrosion behavior; electric current galvanized steel; grounding grids; corrosion behavior; electric current

Share and Cite

MDPI and ACS Style

Song, L.; Zhang, C.; Zhao, J.; Yang, R.; Yuan, Y. Influence of Current on Soil Corrosion of Galvanized Steel of Grounding Grids. Micromachines 2022, 13, 190. https://doi.org/10.3390/mi13020190

AMA Style

Song L, Zhang C, Zhao J, Yang R, Yuan Y. Influence of Current on Soil Corrosion of Galvanized Steel of Grounding Grids. Micromachines. 2022; 13(2):190. https://doi.org/10.3390/mi13020190

Chicago/Turabian Style

Song, Linbo, Cheng Zhang, Jing Zhao, Rui Yang, and Yuan Yuan. 2022. "Influence of Current on Soil Corrosion of Galvanized Steel of Grounding Grids" Micromachines 13, no. 2: 190. https://doi.org/10.3390/mi13020190

APA Style

Song, L., Zhang, C., Zhao, J., Yang, R., & Yuan, Y. (2022). Influence of Current on Soil Corrosion of Galvanized Steel of Grounding Grids. Micromachines, 13(2), 190. https://doi.org/10.3390/mi13020190

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