Corrosion measurement and monitoring with correlation to corrosion rates can now be applied directly in the field with a new stand-alone hand-held potentiostat/galvanostat in combination with a new in-house diagnosis software of electrochemical current noise. As an example, the corrosiveness of soils is assessed for steel pipelines buried without cathodic protection. Noise current densities are calibrated with corrosion rates obtained from mass loss measurements at four different low alloy steels after exposure in twelve different soils.

Subject
Sensors, Correlation, Corrosion rate, Electrochemical noise, Mass loss, Current noise, Current densities, Steel, Corrosion data, Linear polarization resistance, Electrodes, Soil, Low alloy steel
Keywords:
electrochemical noise, data evaluation software, noise current densities, handheld potentiostat/galvanostat, field measurements, soil corrosiveness
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2018
Association for Materials Protection and Performance (AMPP)
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