Abstract
Steel has versatile application in chemical, structure and construction industries owing to its mechanical properties. However, it is susceptible to corrosion in acid environments. Thus, it requires to protect the steel from corrosion. Different types of corrosion resistance steel, coatings and inhibitors are developed to mitigate the corrosion, but, inhibitor is the best remedies to control the corrosion of steel in acid condition. Moreover, organic and green inhibitors used in acid condition for descaling, acid pickling, pipelines, boiler tubes and oil-wells. Organic inhibitors reduce the dissolution of steel in acid but, it is hazardous, expensive and needs expertise to synthesize the inhibitor. Therefore, there is utmost required to study and compile the latest research about the eco-friendly corrosion inhibitors, which showed more than 90% corrosion inhibition efficiency. In the present study, I have reviewed the state-of-arts, and compile the latest development in organic and eco-friendly corrosion inhibitor used in acid environment as well as suggested about the future scope and role of green inhibitor for sustainable society, which is economical, less hazardous and readily available from the natural sources.
Highlights
Steel is considered as a versatile material for fabrication of structures, equipment and various components of home appliances and industrial applications [1]
The results show that the corrosion rate in the absence and presence of the imidazoline is strongly dependent on the flow condition and presence of entrained sand particles
There are different processes being adopted by the researchers to combat the corrosion of steel, including development of high strength, low alloys, corrosion resistant steel as well as different coatings and inhibitors
Summary
Steel is considered as a versatile material for fabrication of structures, equipment and various components of home appliances and industrial applications [1]. The inherent tendency of steels is to interact with their surroundings and develop unstable and non-protective reaction products at the surface [2]. It makes them unsuitable for use in many applications. Tremendous efforts have been made and are still being attempted all over the world to make the steels immune or passive towards its surroundings These efforts include to develop alloys; provide electrochemical protections and suitable inhibitors to corrosive environments, new types of paints and metallic and non-metallic surface coatings. To achieve a greater ratio of load carrying capacity to weight of the steel and to increase fuel efficiency, special types of micro alloyed steel and high strength steel sheets are being used in transportation and building industries. The cathodic or anodic reactions can be reduced by inhibitors
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