Cathodic protection continued electrochemical potential

Electrochemical protection is divided into cathodic and anodic protection. Cathodic protection based on the change of potential of a metal in the negative direction is realized in electrolytic environments, in most cases neutral, mainly of steel and reinforced concrete structures. A well-designed and correctly realized CP reduces the corrosion rate to almost zero. In practice it is realized with the use of an impressed current or protectors (galvanic anodes). The scope of application is enormous and continuously increases. With the use of this technology it is possible to protect vessels and ships, docks, berths, pipelines, deep wells, tanks, chemical apparatus, underground and underwater municipal and industrial infrastructure, reinforced concrete... 

Electrochemical protection of bleach washers has permitted the continued use of lower alloyed stainless steels, while washing conditions have become more corrosive. Electrochemical protection was applied successfully in an early chlorine dioxide washer [101], Electrochemical protection at slighdy cathodic potentials was commercially appUed for C- and D-stage washers [51,102-106], The effectiveness of electrochemical protection has been assessed by means of coupons [104],... 

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