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AaronStenta_Thesis4-12-13.pdf (1.31 MB)

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One Dimensional Approach to Modeling Damage Evolution in Galvanic Corrosion

Stenta, Aaron
http://rave.ohiolink.edu/etdc/view?acc_num=akron1365808201

Abstract Details

2013, Master of Science, University of Akron, Applied Mathematics.
A one-dimensional mathematical model is developed to describe damage evolution in galvanic corrosion for a variety of geometries. An asymptotic procedure taking advantage of disparity in length scales is used to derive the model. The focus of this thesis is to detail the formulation and solution of the 1D model for basic cartesian and cylindrical configurations. The cartesian model defines a rectangular domain, while the cylindrical model defines a system of concentric disks. For each model a thin film approximation for the thickness of the electrolyte and a well-mixed assumption describing uniform concentration of species in the electrolyte is used. Further, the Wagner relationship restricts the size of the electrolyte thickness as compared to the solution conductivity and polarization slope. Numerical solutions, using Matlab, are obtained for the potential, current density, and corrosion damage through time. The initial time solutions are compared to solutions obtained through the software package, GalvanicMaster, and excellent agreement is found. The damage evolution results are verified using experimental data and corrosion simulations that are cited in the literature. A comparative analysis is performed considering the effect of changing area ratio, electrolyte thickness, IR drop, and Wagner relationship for each system. Fully derived 1D governing equations for additional geometries are also proposed.
Gerald Young, Dr. (Advisor)
Curtis Clemons, Dr. (Committee Member)
Kevin Kreider, Dr. (Committee Member)
103 p.
Chemical Engineering; Engineering; Mathematics
Galvanic; Corrosion; Damage; Evolution; Mathematical; Modeling; Magnesium; Mild Steel; Aluminum; Copper; Thin Film; Wagner; 1D; Matlab; GalvanicMaster; 2D

Recommended Citations

Citations

  • Stenta, A. (2013). One Dimensional Approach to Modeling Damage Evolution in Galvanic Corrosion [Master's thesis, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1365808201

    APA Style (7th edition)

  • Stenta, Aaron. One Dimensional Approach to Modeling Damage Evolution in Galvanic Corrosion. 2013. University of Akron, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=akron1365808201.

    MLA Style (8th edition)

  • Stenta, Aaron. "One Dimensional Approach to Modeling Damage Evolution in Galvanic Corrosion." Master's thesis, University of Akron, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=akron1365808201

    Chicago Manual of Style (17th edition)

akron1365808201
881
© 2013, all rights reserved.
This open access ETD is published by University of Akron and OhioLINK.