Abstract
Corrosion behavior of carbon and galvanized steel samples were investigated in two test environments containing 200 ppm chloride solution. The first set up used 10% inhibitor, while the second used dry air to maintain moisture levels below 40% RH at 20 psi applied pressure. The corrosion rate of the exposed samples were monitored for more than six months (roughly 4,464 hours) using electrical resistance (ER) probe techniques. The data demonstrated that the inhibitor provided superior corrosion protection for the steel samples. The samples in the dry air system suffered corrosion attack and red rust formation after 21 days. The ER probes showed a corrosion rate of less than 0.08 mpy with inhibitor, while the dry air samples showed worst case, a 1.6 mpy corrosion rate and ER probes were heavily corroded.
