A review on the role of surface nanocrystallization in corrosion of stainless steel

A review of the corrosion behavior of conventional and additively manufactured nickel–aluminum bronze (NAB) alloys: current status and future challenges

“…Galvanic corrosion, also known as bimetallic attack, occurs when two dissimilar metallic materials are physically connected in a corrosive environment with the anodic metal corroding to protect the cathodic one. 76 Crevice corrosion, on the other hand, is a localized attack that occurs in hard-to-reach surfaces of a metal, such as under corrosion film deposits, where the electrolyte remains stagnant. 77 Environmentally assisted cracking (EAC) (Fig.…”

“…Surface treatment techniques can significantly alter the microstructure and properties of the surface layer of metallic materials, including their corrosion behavior. 76 For instance, shot peening, a surface severe plastic deformation method, has been found to influence the corrosion properties of NAB. 101 Shot-peened samples exhibited improved corrosion resistance compared to the non-treated alloy, attributed to the increased density of short-circuit diffusion paths, such as grain boundaries and twins, which facilitate the rapid formation of a passive film.…”

Effect of acid proticity on the thermodynamic parameters of charge transfer resistance in corrosion and passivation of nickel based glass alloy

“…The high corrosion resistance features that often extend an improved corrosion resistance of metallic glasses which chemically afford a smooth contacting metallic surface with minimal defects and free of voids, dislocations and/or atomic terraces, so they have no crystallographic dislocations, crystal imperfections, distortions, grain boundaries or secondary phase elements 1 – 3 . Passivation is the process of making a material “non-reactive” in relation to another material 4 , 5 . After corrosion process, passivation is the spontaneous formation of a hard non-reactive surface film that inhibits the corrosion process.…”

An Overview on the Corrosion Behavior of Steels Processed by Severe Plastic Deformation

“…Highly corrosion-resistant materials are also high-cost materials but can undergo degradation in severe environments or under stress, which explains why it is necessary to use new processing techniques and proper corrosion control strategies (15) . Different types of corrosion can be presented in steels, depending on the chemical mechanism, including uniform or general corrosion, galvanic, pitting (16) , crevice (17,18) , environmentally-induced cracking (stress-corrosion cracking (SCC), corrosion fatigue (CF)) (19) , dealloying (20), intergranular and impact-based corrosion (erosion corrosion (21,22), fretting, cavitation) (23,24) . Intergranular corrosion (IGC), also called inter-crystalline corrosion or inter-dendritic corrosion, has been considered the most important mechanism of corrosion in coarse-grained metals, meaning that decreasing grain size in ultra-fine grain steels would decrease the corrosion resistance because of the increase of grain boundaries.…”