PROCESSES, PROCEEDING ON THE SURFACE OF IRON AND STEEL ELECTRODES IN THE REGION OF TRANSITION FROM ACTIVE TO PASSIVE CONDITION

The authors provide systematic investigation of SO42-, Fe 2+, Н+ (main components of etch solution based on sulphuric acid) influence on processes, occurring in iron and steel (steel 10 cb, steel 45) electrodes in the region of transition from active to passive state.It was stated that deceleration of anodic iron and carbon steel dissolutions is probably caused by salt layer formation.At the presence of Fe2+ ions the flayer formation is facilitating