In a previous investigation, AC corrosion rate data from weight loss experiments was compared with the results from a model for AC corrosion developed using a modified Butler-Volmer approach. In the present work, an extension of this is presented to investigate the influence of scale formation on AC corrosion rates.
This CorrCompilation series focuses primarily on equilibrium-formed scales, where an aqueous fluid changes from an unsaturated equilibrium state to a saturated and supersaturated state and then solids may start to form. These types of fouling minerals include alkaline earth salts, silicates, alkaline salts (NaCl), sulfides, and under specific circumstances, metal sulfide salts that form through equilibrium changes. While corrosion product scales are not the subject of this book, the importance of corrosion product layers to the deposition of other scales will be described.
Since this is a CorrCompilation and more than 90 copies of NACE papers are included, the work is published in four volumes. The editor, Wayne W. Frenier, FNACE, provides an extensive introduction to each volume, offering the reader a thorough mix of history, theory, and engineering techniques and methods for addressing scale.
Volume 1: Introduction to Equipment Subject to Inorganic Scale
Volume 2: Current Mechanisms for Understanding Inorganic Scale Formation and Deposition
Volume 3: Chemistry and Application of Scale Inhibitors
Volume 4: Alternative Methods of Scale Control
Predicting where, when, and, most importantly, how much scale will deposit and adhere to a critical surface has proven to be very challenging. This second volume, "Current Mechanisms for Understanding Inorganic Scale Formation and Deposition," will review literature for both the formation and deposition of the primary fouling mineral scales, CaCO3, CaSO4(X•H2O), BaSO4, metal sulfides, and silica/silicates.