Localized Corrosion
نویسندگان
چکیده
منابع مشابه
A quasi 2-D localized corrosion model
In 1996 Pots has written a two-dimensional (2-D) stochastic algorithm to simulate the morphology of localized attack. The rule based algorithm operates on the assumption that the morphology of corrosion attack depends on the balance of two processes: corrosion (leading to metal loss) and precipitation (leading to metal protection). The rules of the original algorithm were modified to enable sim...
متن کاملOrigins of Persistent Interactions among Localized Corrosion Sites
It is often believed that pitting events are stochastic without any spatial or temporal effect on each other. However, as pits begin to form, the local environment changes [1]. Solution concentration and potential gradients develop that can affect pitting susceptibility on adjacent surfaces. These factors can also affect nearby oxide film and non-metallic inclusions to produce more permanent in...
متن کاملOrigins of Persistent Interaction among Localized Corrosion Sites
Interactions amongst localized corrosion sites were investigated using multi-electrode arrays. The 5x20 array consisted of one hundred 250 μm AISI 316 stainless steel wires configured into a close packed rectangle. Experiments were conducted in 0.05 M NaCl to investigate interactions triggered by the presence of active pits. Interactions between primary pits and the adjacent electrode surface w...
متن کاملDynamic Sensing of Localized Corrosion at the Metal/Solution Interface
A Mach-Zehnder interferometer is employed to detect localized corrosion at the metal/solution interface in the potentiodynamic sweep of the iron electrode in solutions. During the electrochemical reactions, local variations of the electrolyte's refractive index, which correlate with the concentration of dissolved species, change the optical path length (OPL) of the object beam when the beam pas...
متن کاملStudying localized corrosion using liquid cell transmission electron microscopy.
Localized corrosion of Cu and Al thin films exposed to aqueous NaCl solutions was studied using liquid cell transmission electron microscopy (LCTEM). We demonstrate that potentiostatic control can be used to initiate pitting and that local compositional changes, due to focused ion beam implantation of Au(+) ions, can modify the corrosion susceptibility of Al films.
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ژورنال
عنوان ژورنال: CORROSION ENGINEERING
سال: 1976
ISSN: 0010-9355,1884-1155
DOI: 10.3323/jcorr1974.25.12_761