Crevice corrosion

This chapter deals with the crevice corrosion. It is a type of localized corrosion produced by the presence of cracks, gaps, screens, or deposits on a metal surface. Crevice corrosion is considered particularly dangerous, as it has the potential to cause premature component failure. Metals that are relatively resistant to corrosion, such as titanium, stainless steel, and aluminum, are commonly affected. Small gaps or crevices produced by various components such as bolts, threads, and joint heads are frequently targeted by this type of attack. It can also happen when there is a lack of oxygen in a passivating environment. The causes of crevice corrosion and theories involving it are discussed in more detail in this chapter. Additionally, the various steps involved in the crevice corrosion mechanism are explained. There is a detailed discussion of a variety of factors, including the type and geometry of crevices, the environment, and metal composition. The chapter concludes with some case studies that were reported in the literature and prevention strategies.