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StentaA_dis (final comments 1).pdf (2.61 MB)
ETD Abstract Container
Abstract Header
Species-Dependent Modeling of Crevice Corrosion Systems
Author Info
Stenta, Aaron
Permalink:
http://rave.ohiolink.edu/etdc/view?acc_num=akron1437748262
Abstract Details
Year and Degree
2015, Doctor of Philosophy, University of Akron, Applied Mathematics.
Abstract
A species dependent, one-dimensional mathematical model is developed to describe localized crevice corrosion applications. An asymptotic procedure taking advantage of disparity in length scales is used to derive the governing system. The equations are rotated to eliminate bulk reactions, and formulate a boundary value problem for numerical solution. This research extends previous 1D well-mixed approaches [1,2] to non well-mixed electrolytes, and explores its capabilities. To create this concentration dependent crevice corrosion model with damage evolution we propose: (i) 1D simplified configurations that have government and industrial corrosion applications; (ii) multiple formulations of 1D rotated systems that simplify the complex system of higher order nonlinear equations; (iii) a numerical procedure that is efficient and open source; (iv) the use of standard practice experimental inputs to predict Ni-625 crevice corrosion metal dissolution that validates experimental time history damage profiles; (v) a COMSOL 2D time-dependent finite element model to assist and validate the 1D modeling efforts; (vi) to benchmark the numerical procedure with analytical solutions and known literature; (vii) localized modeling insight to the scientific corrosion community that may allow for the development of commercially available, user-friendly software packages, further experimental efforts, and increased scientific knowledge of corrosion phenomena; and (viii) a generalized modeling procedure and solution for application to additional material systems.
Committee
Gerald Young (Committee Chair)
Curtis Clemons (Committee Member)
Kevin Kreider (Committee Member)
Robert Lillard (Committee Member)
Graham Kelly (Committee Member)
Chelsea Monty (Committee Member)
Pages
212 p.
Subject Headings
Applied Mathematics
;
Chemical Engineering
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Citations
Stenta, A. (2015).
Species-Dependent Modeling of Crevice Corrosion Systems
[Doctoral dissertation, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1437748262
APA Style (7th edition)
Stenta, Aaron.
Species-Dependent Modeling of Crevice Corrosion Systems.
2015. University of Akron, Doctoral dissertation.
OhioLINK Electronic Theses and Dissertations Center
, http://rave.ohiolink.edu/etdc/view?acc_num=akron1437748262.
MLA Style (8th edition)
Stenta, Aaron. "Species-Dependent Modeling of Crevice Corrosion Systems." Doctoral dissertation, University of Akron, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=akron1437748262
Chicago Manual of Style (17th edition)
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Document number:
akron1437748262
Download Count:
660
Copyright Info
© 2015, some rights reserved.
Species-Dependent Modeling of Crevice Corrosion Systems by Aaron Stenta is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. Based on a work at etd.ohiolink.edu.
This open access ETD is published by University of Akron and OhioLINK.