منابع مشابه
Cellular Automata Approach to Corrosion and Passivity Phenomena
Our research on employing the cellular automata methodology to corrosion and passivation phenomena is reviewed. Examples of a peculiar pit development are found and presented. The diffusion rate in the corroding medium is argued and shown in the simulation results to affect mainly the characteristic length scale for the corrosion process. New data for the pitting corrosion development on a plan...
متن کاملA 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 کاملNANO- SCALE LOCALIZED CORROSION STUDIES OFEN AW- 3003ALALLOYBYSEM-EDS, SKPFM AND IN-SITU AFM
Abstract: Localized corrosion of aluminum alloys is often triggered by intermetallic particles, IMP’s. To understandthe role of IMP’s in corrosion initiation of EN AW-3003, efforts were made to combine nano-scale ex-situ analysis ofthe IMP’s by SEM-EDS, SKPFM and in-situ AFM monitoring of the localized attack in chloride containing solution.The results showed that two distinct types of eutectic...
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...
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ژورنال
عنوان ژورنال: CORROSION ENGINEERING
سال: 1986
ISSN: 0010-9355,1884-1155
DOI: 10.3323/jcorr1974.35.3_171