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A small, narrow pit with minimal overall metal loss

the failure of an entire engineering system

cavities 

pitting

pits

shapes

Pitting corrosion, which, for example, is almost a common denominator of all types of localized corrosion attack, may assume different shapes.

A closer look at the molecular structure of materials reveals that the matter that we commonly think of as a solid (steel, concrete, etc.) has densely spaced molecules...

Although quite descriptive, these casual observations of the differences between solids and fluids are not very satisfactory from a scientific or engineering point of view.

Although quite descriptive, these casual observations of the differences between solids and fluids are not very satisfactory from a scientific or engineering point of view.

Although quite descriptive, these casual observations of the differences between solids and fluids are not very satisfactory from a scientific or engineering point of view.

Pitting is initiated by the presence of non-uniformities in the metal structure of the component, e.g. nonmetallic inclusions.