Question

How to calculate corrosion rate from immersion test corrosion?

Answer 1

1. Weight loss (the decrease in metal weight during the reference time period)

2. Density (density of the metal)

3. Area (total initial surface area of the metal piece)

4. Time (the length of the reference time period)

Answer 2

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When a metal is atacked by its surrounding air , moisture , acid etc it is said to be corroded . The process is called corrosion.

Electrochemical corrosion of metals occurs when electrons from atoms at the surface of the metal are transferred to a suitable electron acceptor or depolarizer. Water must be present to serve as a medium for the transport of ions.