Galvanic corrosion is one of the major problems to the use of zinc materials in the industry.
Researchers [22, 23] discovered that the corrosion resistance of steels comprising various ferrite fractions was primarily determined by the
galvanic corrosion resistance between the constituents of the ferrite phase and of other phases.
The issue of
galvanic corrosion is not limited to aluminum and can occur with other metals and alloys, such as steel or stainless steel, in certain environmental conditions.
Similarly a difference inelectric potential between two or more dental metals incontact with each other in the corrosive oral environmentcan cause
galvanic corrosion to occur.7
Underground corrosion of ferrous metals occurs through electrolytic and
galvanic corrosion. For more information on causes refer to "Causes of Underground Corrosion" Technical Paper 82." (2) Most of the underground exterior-piping corrosion failures witnessed by the author have originated at piping joints due to lack of corrosion protection or poor workmanship and inspection during installation.
The corrosion is a result of
galvanic corrosion which is an electrochemical process in which basically a metal corrodes in presence of electrical current (in the watch itself) and an electrolyte (sweat).
Besides the processing benefits, the polymer delivers a good balance between strength and ductility, is resistant to
galvanic corrosion, and has excellent FST properties.
Finally, Structural Adhesives enable bonding of dissimilar materials without worries of
galvanic corrosion or stresses of different coefficients of thermal expansion and contraction.
One thing many boaters don't pay enough attention to is the effects of
galvanic corrosion on trailers.
Although petrol does not conduct electricity well, ethanol has an appreciable capability to conduct electricity and therefore can promote
galvanic corrosion. These water and corrosion issues are the "fly in the ointment" of eco-fuels.
However, tin (Sn) and lead (Pb) both dissolve in the presence of atmospheric water because of
galvanic corrosion [20].