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"Corrosion on Metal & Steel"
Time-Tested Performance
The definition of corrosion is simply the partial
or complete wearing away, dissolving or softening of any substance
by chemical or electrochemical reaction with its environment.
In your industry there may be one or more types of corrosion at
work:
-
Crevice Corrosion
a localized corrosion situated in existing
crevices like scratches, scoring, etc.
-
Pitting Corrosion
extreme case of localized corrosion attack which results in
creation of cavities or pits on the substance.
-
Fretting Corrosion
accelerated form of corrosion where two surfaces contact each
other under motion - as in heavy machinery, hinges, etc.
-
Erosion Corrosion
accelerated form of corrosion when corrosive fluids run across
the metal surface. (Common in fertilizer and chemical storage.)
-
Cavitation Corrosion
corrosion created when metal collapses and results in breaking
of protective surface membrane on metal.
-
Stress Corrosion
combination of tensile stress and corrosion erosion.
-
Intergranular Corrosion
corrosion occurring at joints and/or grain boundaries on the
metal. Stainless steel is particularly susceptible to this type
of corrosion.
-
Microbiological Corrosion
deterioration caused directly by bacteria, fungi, algae, mold,
or fungus. (Common in clay-type soils.)
-
High-temperature Corrosion
occurs where metals are in contact with flames as in furnaces,
flues, etc.
While much more can be said about the technical
side of corrosion and its effects, corrosion can be an expensive
challenge unless prevented.
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