Corrosion Resistance of Mild Steel in Simulated Concrete Pore Solution in Presence of Chloride Ions - An Overview

Devi, P. Nithya; Sathiyabama, J.; Rathish, R. Joseph; Umasankareswari, T.

doi:10.4152/pea.201503195

Cited by 6 publications

(2 citation statements)

References 30 publications

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“…Due to their excellent and wide range of mechanical properties, steels are widely used in chemical and oil & gas industries, thus requiring protection from corrosion for engineering, automobile, boiler plates, pipes, reaction vessels, storage tanks and in bridges and building works; since steel undergoes severe corrosion attack in aggressive environment, it needs to be protected [42,43,44,45,46,47]. Also, corrosion of the steel reinforcement is one of the main reasons causing the premature deterioration of reinforced concrete, and leading to a significant economic loss or serious accidents [48]. Stimulated by the warmth of the topic, starting from preliminary results, Fiori-Bimbi and co-workers employed pectin alone as an efficient eco-friendly corrosion inhibitor for mild steel in hydrochloric acid solutions [16].…”

Section: Corrosionmentioning

confidence: 99%

Green Corrosion Inhibitors from Natural Sources and Biomass Wastes

2018

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Over the past decade, green chemistry has been emphasizing the importance of protecting the environment and human health in an economically beneficial manner aiming at avoiding toxins and reducing wastes. The field of metallic materials degradation, generally faced by using toxic compounds, found a fertile research field in green chemistry. In fact, the use of inhibitors is a well-known strategy when metal corrosion needs to be prevented, controlled, or retarded. Green inhibitors are biodegradable, ecologically acceptable and renewable. Their valorization expands possible applications in industrial fields other than ‘waste to energy’ in the perspective of circular economy. Although lot of experimental work has been done and many research papers have been published, the topic of green inhibitors is still an open issue. The great interest in the field expanded the research, resulting in high numbers of tested molecules. However, the most frequently adopted approaches are conventional and, hence, not suitable to fully characterize the potential efficacy of inhibitors. All the mentioned aspects are the object of the present review and are meant as a constructive criticism to highlight the weak points of the green inhibitors field as to re-evaluate the literature and address the future research in the field that still lacks rationalization.

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Section: Corrosionmentioning

confidence: 99%

Green Corrosion Inhibitors from Natural Sources and Biomass Wastes

2018

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“…Inspection of Figure 7(b) reveals that the mild steel immersed in SCPS shows an aggressive attack of the corroding medium on the steel surface. In contrast, in the presence of 250 ppm lactic acid and 50 ppm Zn 2+ the mild steel surface coverage increses which in turn results in the formation of insoluble complex on the metal surface (LA + Zn inhibitor complex) [30][31][32][33]. a b c Figure 7.…”

Section: Scanning Electron Microscopy( Sem)mentioning

confidence: 99%

Study of surface morphology and inhibition efficiency of mild steel in simulated concrete pore solution by lactic acid–Zn2+ system

2017

Int. J. Corros. Scale Inhib.

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The inhibition efficiency (IE) of lactic acid-Zn 2+ system in controlling corrosion of mild steel in simulated concrete pore solution (SCPS) prepared in well water in the absence and presence of Zn 2+ has been investigated by weight loss study. The formulation consisting of 250 ppm of lactic acid and 50 ppm of Zn 2+ provides 94% of inhibition efficiency. Inhibition was found to increase with an increasing concentration of lactic acid and Zn 2+ . Polarization resistance was measured by weight loss method, polarization study. The surface morphology has been investigated by SEM and AFM.

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