Pitting predictive capabilities

Digby Macdonald and Leo Kriksunov provide a broad perspective on the complex phenomena by which fluid flow influences the initiation and propagation of corrosion in pits and cracks. By focusing on the industrially important environment of high temperature aqueous systems, the authors provide an important link between theoretical understanding, well-designed experiments, and predictive capability. 

Many models exist to predict the conditions within these sites (e.g., 34,35). However, if the primary need is to determine the extent of corrosion damage (e.g., the depth of corrosion penetration), these models are not sufficient. Generally, electrochemical techniques contain no spatial information, since the current measured is the sum of currents from all individual corrosion sites. In the case of pitting, this limitation is being slowly erased as scanning techniques capable of spatial resolution are being developed. However, the ability to resolve local corrosion sites within fixed occluded areas such as cracks and crevices remains minimal. 

Your company needs to have a competent person on site when digging the cellar and the reserve, water, and shale pits. OSHA defines a competent person as one who is capable of identif5dng existing and predictable hazards in the surrormdings, or working conditions which are unsanitary, hazardous, or dangerous to employees, and who has authorization to take prompt corrective measirres to eliminate them. ... 

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