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Numerical Simulation of Quasi-Two-Dimensional Corrosion of a Coated Metal

York, Ethan Cole

Abstract Details

2015, Master of Science, University of Akron, Mathematics.
A quasi-two-dimensional mathematical model is developed to describe the damage evolution of corrosion through a coated plate due to a defect in the coating. The problem domain consists of a metal covered on one side with a coating, an electrolyte mix just outside the coating, and a small defect in the coating. The defect is a small stretch of the coating where the coating is more porous. In the model the defect length is 0.05 cm. The model uses a 1 cm x 1 cm plate with a coating thickness of 100 microns. To simulate the effects of corrosion over time partial differential equations for the concentration of water and oxygen in the coating and corrosion product zone are developed. An asymptotic analysis that uses the disparity in length scales between the coating thickness and the coating extent along the metal is used to simplify the two dimensional equations. The simplified model is solved numerically and tracks the concentration of water and oxygen in the coating and product zone as well as the corrosion damage that occurs. The model is investigated for different parameter variations including the rate of passive layer degradation, water and oxygen mass transfer rates, and defect area.
Kevin Kreider, Dr. (Advisor)
Curtis Clemons, Dr. (Advisor)
Gerald Young, Dr. (Advisor)
89 p.

Recommended Citations

Citations

  • York, E. C. (2015). Numerical Simulation of Quasi-Two-Dimensional Corrosion of a Coated Metal [Master's thesis, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1429032542

    APA Style (7th edition)

  • York, Ethan. Numerical Simulation of Quasi-Two-Dimensional Corrosion of a Coated Metal. 2015. University of Akron, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=akron1429032542.

    MLA Style (8th edition)

  • York, Ethan. "Numerical Simulation of Quasi-Two-Dimensional Corrosion of a Coated Metal." Master's thesis, University of Akron, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=akron1429032542

    Chicago Manual of Style (17th edition)