WATER RESEARCH PROGRAM BIENNIAL PROGRESS REPORT For the Period March 15, 1968, to November 1, 1970 REACTIONS AMD TRANSPORT PHENOMENA AT SURFACES

摘要

Numerous technologies, including water desalination, depend on favorable kinetic properties of various reactions and transport phenomena at phase boundaries. For example, corrosion processes, involving destruction of the crystalline lattice of metals by dissolution reactions or by formation of additional surface phases such as oxide layers, are frequently important factors to be considered in the selection of materials of construction for desalting plants. A continuing need exists for extension of our knowledge of the corrosion behavior of metals, particularly with respect to factors which influence the susceptibility of metals and alloys to localized forms of corrosion, such as pitting. During this biennium we have developed a theoretical model for pitting corrosion of metals which takes into account the interaction between interfacial and mass-transport processes during passage of anodic current through confined regions.