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akron1342711463.pdf (1.13 MB)
ETD Abstract Container
Abstract Header
Modeling and Simulation of Damage Evolution in Crevice Corrosion
Author Info
Brackman, Matthew D.
Permalink:
http://rave.ohiolink.edu/etdc/view?acc_num=akron1342711463
Abstract Details
Year and Degree
2012, Master of Science, University of Akron, Applied Mathematics.
Abstract
While much progress has been made in transport models of crevice corrosion, damage evolution of the metal surface during this process has received less attention. This work focuses on mathematical modeling and simulation of the damage evolution to provide quantitative descriptions of the time varying shape of the corroded surface. The base model uses the potentiodynamic polarization data for nickel (Ni) in sulfuric acid and assumes well-mixed solution chemistry inside and outside the crevice, consistent with a pure potential drop model and experimental/modeling work in the literature. Asymptotic analysis is used to simplify the governing equations and develop an evolution equation for the Ni surface. Metal surface shapes, potential profiles and other characteristic features of the corrosion are predicted. Predicted results agree well with the published laboratory investigations. Since the model calculates the true crevice gap in real time, it provides new insights into the movement of the peak current density, potential drop down the crevice length and the critical length to gap ratio necessary to propogate potential drop controlled crevice corrosion.
Committee
Gerald Young, Dr. (Advisor)
Kevin Kreider, Dr. (Advisor)
Curtis Clemons, Dr. (Other)
Subject Headings
Materials Science
;
Mathematics
Keywords
modeling
;
simulation
;
crevice corrosion
;
damage evolution
;
mathematics
;
math modeling
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Citations
Brackman, M. D. (2012).
Modeling and Simulation of Damage Evolution in Crevice Corrosion
[Master's thesis, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1342711463
APA Style (7th edition)
Brackman, Matthew.
Modeling and Simulation of Damage Evolution in Crevice Corrosion.
2012. University of Akron, Master's thesis.
OhioLINK Electronic Theses and Dissertations Center
, http://rave.ohiolink.edu/etdc/view?acc_num=akron1342711463.
MLA Style (8th edition)
Brackman, Matthew. "Modeling and Simulation of Damage Evolution in Crevice Corrosion." Master's thesis, University of Akron, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=akron1342711463
Chicago Manual of Style (17th edition)
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Document number:
akron1342711463
Download Count:
595
Copyright Info
© 2012, all rights reserved.
This open access ETD is published by University of Akron and OhioLINK.