Potentiodynamic scanning was used to study the effects of solution temperature, test time, total dissolved solids (TDS) and local fluid velocities on pitting rates of AISI 1018 mild steel. Neutral, oxygen saturated waters of various TDS levels were utilized as corrosive fluids. Passivation of the steel did not occur in these fluids. The rate of pitting was found to be a very weak function of TDS levels. A semilog plot of temperature versus rate and a log-log plot of fluid velocity versus rate are straight lines. Temperature is the most dominant factor governing pitting rates in the systems studied.

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© 1979 National Association of Corrosion Engineers
1979
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