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J Chin Soc Corr Pro  2009, Vol. 29 Issue (5): 382-387    DOI: 1005-4537(2009)05-0382-06
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2-DIMENSIONAL FINITE ELEMENT METHOD FOR CATHODIC PROTECTION OF COPPER BY MEDIUM CARBON STEEL IN SEAWATER
WANG Wei1;2; SUN Huyuan1 SUN Lijuan1 WANG Shun1;2
1. Institute of Oceanology;Chinese Academy of Sciences; Qingdao 266071
2. Graduate University of Chinese Academy of Sciences; Beijing 100049
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Abstract  

Six different 2-D physical models for cathodic protection of copper by medium carbon steel as sacrificial anode in seawater are built in this paper. Weak form of Laplace equation was deduced to make finite element method (FEM) numerical calculation convenient. Then, potential distribution of various physical models was computed by FEM, and followed by experimental measurements for validation. The results show clearly that potential distribution of the cathodic protection system could be well simulated by the 2-D FEM solution. The distance of the galvanic couples is not a key factor influencing potential distribution in small range. Typical simulation data (along X-axis and Y-axis) of different models are consistent with the experimentally measured results. Therefore, it should be feasible to cathodically protect copper with medium carbon steel as sacrificial anode, and FEM could afford well a basis for cathodic protection design.

Key words:  cathodic protection      finite element method (FEM)      medium carbon steel      copper     
Received:  04 June 2008     
ZTFLH: 

TG174.41

 
Corresponding Authors:  SUN Huyuan     E-mail:  sun@ms.qdio.ac.cn

Cite this article: 

WANG Wei SUN Huyuan SUN Lijuan WANG Shun. 2-DIMENSIONAL FINITE ELEMENT METHOD FOR CATHODIC PROTECTION OF COPPER BY MEDIUM CARBON STEEL IN SEAWATER. J Chin Soc Corr Pro, 2009, 29(5): 382-387.

URL: 

https://www.jcscp.org/EN/1005-4537(2009)05-0382-06     OR     https://www.jcscp.org/EN/Y2009/V29/I5/382

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