SEDL / STP / STP727-EB / STP28046S

Progress in Mini-Potentiostat Development for Corrosion Testing

Newborn, HA
Metallurgist, electrical engineer, and metallurgist, Naval Surface Weapons Center, White Oak, Silver Springs, Md.

Bratlie, DC
Metallurgist, electrical engineer, and metallurgist, Naval Surface Weapons Center, White Oak, Silver Springs, Md.

Crowe, CR
Metallurgist, electrical engineer, and metallurgist, Naval Surface Weapons Center, White Oak, Silver Springs, Md.

Pages: 9    Published: Jan 1981

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Abstract

There is considerable interest in developing mini-potentiostats to perform both long-term and multispecimen corrosion tests. Various options utilizing state-of-the-art electronic components were tested with both resistive loads and actual electrochemical cells to compare their performances. Attention was then focused on a particular design that was economically competitive and performed adequately over a wide range of effective cell resistance. Accuracy must be maintained despite large cell resistance variations occurring in corrosion studies.