ABSTRACT
Microbiologically influenced corrosion (MIC) is electrochemical corrosion in nature. Being as such, it is also subjected to methods by which corrosion can be controlled. Coating of active substrates can be used to control their corrosion in aggressive media. By applying coatings, not only anode and cathode are separated by a barrier but also the outer environment that could perform as an electrolyte would be prevented to come into contact with the surface of the corroding material. For MIC to take place the general requirements for electrochemical corrosion should be realized, that are an anode for electron drainage and a cathode as an electron sink in the presence of an electrolyte. The main aspect of MIC that renders it different from other corrosion processes is the involvement of living organisms. These organisms are capable to induce corrosion via various ways; however, the end result will be inducing conditions by which failure of the material would be facilitated. One of the coating materials that have recently gained a good reputation among researchers is graphene. Due to its extraordinary features such as high water and oil resistivity and scratch resistivity, graphene has been shown to be a promising coating material. While application of coatings in controlling MIC is not a new concept, the usage of graphene as an alternative coating in this respect is a novel approach. In this chapter, we will review some important characteristics of MIC and illustrate the employment of graphene in preventing MIC.
