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Electron Path. In order for electrons to flow from the
anodic sites to cathodic sites, the electrons migrate through a metallic path. This
migration occurs duet o a voltage difference between the anodic and cathodic reactions.
Electrons can move easily only through metals and some non-metals such as graphite. |
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Electrolytes are solutions that can conduct electrical
currents through the movement of charged chemical constituents called ions. Positive
and negative ions are present in equal amounts. Positive ions tend to migrate away
from anodic areas and toward cathodic areas. Negative ions tend to migrate away
from cathodic areas and towards anodic areas |
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Corrosion accelerated by the high velocity flow of a liquid,
or a suspension of solid particles in a liquid is known as erosion corrosion.
When water flows over a metal surface at high velocity, corrosion can be greatly
increased over that encountered at low flow velocities.
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