Simulation and investigation of anode role in iron corrosion with concrete coating

The equipment used in the chemical processes and the foundation is made of various metals that expose them to corrosion .Corrosion is an electrochemical process in which iron is corroded and converted into iron ions in a limited volume of pores in the pores of concrete around steel. The process of starting and releasing corrosion is discussed in this environment. The role of multi-metal as anode and its effect on reducing corrosion by cathodic protection method is discussed. In this study, the simulation of corrosion of iron rebar inside the concrete and the saturated pores of intrusive oxygen, has been carried out by Comsol software. The results show that in the cadmium alloy a sudden drop occurs at a concentration of PS =0.7 while for zinc and chromium alloys in the range of PS =0.65. According to the results, zinc and chromium alloys are more suitable for corrosion prevention.