ABSTRACT
Increasing the corrosion rate to reduce sec might appear to be a ridiculous proposition. But because SCC is a form of highly localized corrosion, extending corrosion over the whole of the surface will usually lessen the probability of such failures. It has been employed in making up mixtures containing HCI to clean austenitic stainless steel parts in chemical plants; the corrosion rate is maintained > 10 mpy [46]. Electrochemical Protection. Cathodic protection will control SCC in alloys that crack by anodic dissolution mechanism, but is likely to accelerate hydrogeninduced cracking, particularly in high-strength alloys. sec failure of Kraft continuous digesters in the pulp and paper industry in an NaOH-Na2S environment at l40°C has been reported [47] to have been mitigated by the application of anodic protection.
