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Full-Text Articles in Applied Mathematics
A Mathematical Model Of A Corrosion System Containing Inhibitors, Abigael Frey
A Mathematical Model Of A Corrosion System Containing Inhibitors, Abigael Frey
Williams Honors College, Honors Research Projects
A two dimensional model is developed to describe how organic and inorganic inhibitors slows down the corrosion damage of a coated metal plate that contains a defect. The model contains a metal covered on one side by a coating that contains organic and inorganic inhibitors, electrolytes that are on the outside of the coating, and a small defect in the coating. The defect is an area where the coating is more porous and allows the electrolytes to leak in faster. In this model the organic inhibitor is presumed to be dissolved into the coating and the inorganic inhibitor is released …
Galvanically Induced/Accelerated Crevice Corrosion, Zachary R. Roland
Galvanically Induced/Accelerated Crevice Corrosion, Zachary R. Roland
Williams Honors College, Honors Research Projects
In this thesis, a one dimensional model is developed to investigate the initial stages of corrosion in a fastener assembly consisting of a stainless steel fastener and aluminum 7075 as the plate. Differential equations are formulated and solved to determine the profiles for the potential, the oxygen concentration, and the aluminum ion concentration in the crevice, and also the potential in the bulk electrolyte. This fastener system exhibits galvanic corrosion, pitting corrosion, and crevice corrosion. It is found that the potential decreases monotonically down the length of the crevice, the oxygen concentration decreases exponentially down the length of the crevice, …