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One Dimensional Approach to Modeling Damage Evolution of Galvanic Corrosion in Cylindrical Systems

Basco, Scott William
http://rave.ohiolink.edu/etdc/view?acc_num=akron1367489568

Abstract Details

2013, Master of Science, University of Akron, Applied Mathematics.
A one-dimensional mathematical model is developed to describe the damage evolution caused by galvanic corrosion in an aluminum/copper system consisting of two wires, tubes, or pipes (or other similar cylindrical objects) end-to-end. Laplace’s equation is solved in the electrolyte film surrounding the object to simulate the effects of corrosion over time. This solution is obtained through use of an asymptotic procedure that takes advantage of the disparity in length scales within the model. This model is then able to track the damage caused by the galvanic action through use of numerical techniques (a finite difference method) solved by MATLAB. Solutions are obtained for various area ratios, electrolyte thicknesses, and object shapes. Current density and corrosion potential are determined as a function of experimental polarization curves. The model is restricted to thin-film domains, assumes that the electrolyte solution is well-mixed, assumes there is no mass transport, and is restricted by the Wagner relationship. A short investigation is also conducted into the behavior of the model when the radius of the wire becomes very large. The iterative model shows a damage profile that is directly related to IR drop and current density in the electrolyte.
Gerald Young, Dr. (Advisor)
Curtis Clemons, Dr. (Committee Member)
Kevin Kreider, Dr. (Committee Member)
85 p.
Applied Mathematics; Engineering
galvanic corrosion; cylindrical; wire; pipe; mathematical modeling

Recommended Citations

Citations

  • Basco, S. W. (2013). One Dimensional Approach to Modeling Damage Evolution of Galvanic Corrosion in Cylindrical Systems [Master's thesis, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1367489568

    APA Style (7th edition)

  • Basco, Scott. One Dimensional Approach to Modeling Damage Evolution of Galvanic Corrosion in Cylindrical Systems. 2013. University of Akron, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=akron1367489568.

    MLA Style (8th edition)

  • Basco, Scott. "One Dimensional Approach to Modeling Damage Evolution of Galvanic Corrosion in Cylindrical Systems." Master's thesis, University of Akron, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=akron1367489568

    Chicago Manual of Style (17th edition)

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© 2013, all rights reserved.
This open access ETD is published by University of Akron and OhioLINK.