scholarly journals A Review on Plants and Biomass Wastes as Organic Green Corrosion Inhibitors for Mild Steel in Acidic Environment

Metals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1062
Author(s):  
Norbaayah Ahmad Reza ◽  
Nor Hasrul Akhmal ◽  
Nor Akmal Fadil ◽  
Mohd Firdaus Mohd Taib
Keyword(s):  
Acid Solution ◽  
Natural Resources ◽  
Metal Surfaces ◽  
Corrosion Inhibitors ◽  
Acid Corrosion ◽  
Protective Layer ◽  
Acid Environment ◽  
Organic Inhibitors ◽  
Organic Corrosion Inhibitors ◽  
Green Corrosion Inhibitors

Acid corrosion is a problem pertaining to corrosion that involves an acid solution. It is important to treat metal to preserve its integrity. Thus, acids are utilized to clean and treat metal surfaces. In return, this may lead to over-etching and metal degradation. Corrosion inhibitors were introduced as a solution for the issue. However, there are some problems associated with the usage of conventional corrosion inhibitors. Traces of nitrites and chromates that are present in the inhibitors may lead to serious health and environmental issues. As a solution, organic green corrosion inhibitors have been studied to replace the conventional corrosion inhibitors. These inhibitor molecules form a protective layer on top of the metal surface to suppress metal dissolution when added to the acid solution. This process prevents direct contact between the metal surfaces and the acid environment. This study explores the usage of natural resources and biomass wastes as the basis for organic green corrosion inhibitors. This study also provides some suggestions for new biomass wastes that can be studied as new organic corrosion inhibitors, and it is aimed at opening the perspective of researchers on exploring new organic inhibitors by using natural resources and biomass wastes.

Effect of Organic Corrosion Inhibitors on Corrosion Fatigue

CORROSION ◽  
1967 ◽  
Vol 23 (3) ◽  
pp. 65-71 ◽  
Author(s):  
PARVIZ MEHDIZADEH ◽  
R. L. McGLASSON ◽  
J. E. LANDERS
Keyword(s):  
Corrosion Fatigue ◽  
Diesel Fuel ◽  
Corrosion Inhibitors ◽  
Fatigue Cracks ◽  
Material Surface ◽  
Significant Protection ◽  
Inhibitor Concentration ◽  
Degree Of Protection ◽  
Organic Inhibitors ◽  
Organic Corrosion Inhibitors

Abstract The effect of organic inhibitors on corrosion fatigue performance of steel in a mixture of brine containing H2S-CO2 and diesel fuel is reported. The inhibitor concentration required to give significant protection to steel under corrosion fatigue conditions is much higher than that for corrosion control. This is due to the fact that corrosion fatigue cracks initiated at incompletely protected spots on the material surface influence fatigue failure regardless of the degree of protection achieved on neighboring areas. Effects of fatigue stress and concentration of corrosion inhibitors were investigated. Results were analyzed in terms of the proposed mechanism for corrosion inhibition in these environments.

scholarly journals Sources of Active Ingredients for Sustainable Corrosion Inhibitors

2021 ◽  
pp. 30-45
Author(s):  
R. Sharma
Keyword(s):  
Surface Tension ◽  
Cost Effectiveness ◽  
Human Health ◽  
Corrosion Inhibitors ◽  
Metal Corrosion ◽  
Active Ingredients ◽  
Grave Problem ◽  
Organic Corrosion Inhibitors ◽  
Green Corrosion Inhibitors

Metal corrosion is a grave problem, having deleterious effects on human health, the economy, the environment, and many engineering schemes, for example, automobiles, aircraft, naval vessels, and pipelines. For the confirmation of enduring reliability and stability of alloys and metals, corrosion-protective surfaces are of the greatest significance, for example, ions and water, through restraining their interactions with corrosive species. Though, their applied submissions are frequently bounded whichever through deprived mechanical robustness or else through the incapability to resist low surface tension liquids, for example, alcohols and oil. In this chapter, we have focused on diverse materials as sustainable corrosion inhibitors such as organic corrosion inhibitors, green corrosion inhibitors, and polymer-based corrosion inhibitors to protect materials from being corroded. Amongst them, we especially focus on green corrosion inhibitors as a consequence of simple manufacturing, easy availability, cost-effectiveness, and biodegradable nature.

Corrosion inhibition of steel in phosphoric acid

2018 ◽  
Vol 36 (3) ◽  
pp. 267-280 ◽  
Author(s):  
Anees A. Khadom ◽  
Salah N. Farhan
Keyword(s):  
Adsorption Isotherm ◽  
Synergistic Effect ◽  
Phosphoric Acid ◽  
Corrosion Inhibitors ◽  
Acid Corrosion ◽  
Industrial Applications ◽  
Mixed Effect ◽  
Steel Alloys ◽  
Organic Inhibitors ◽  
Anodic Reactions

AbstractPhosphoric acid has been used in many industrial applications and can be in contact with a lot chemical and petrochemical equipment. Most of this equipment is made of steel alloys that may be damaged because of contact with acid. Corrosion inhibitors can be used for to protect steel alloys against several forms and various environments of corrosion. In this paper, the efficiency and applications of organic and inorganic inhibitors in different environments of phosphoric acid are investigated. More than 40 papers were collected and reviewed. Surveys of the stated works in phosphoric acid environments are documented. It was concluded that organic inhibitors performed as good corrosion inhibitors and are used widely. The use of inorganic inhibitors was limited. Most of studied inhibitors follow Langmuir’s adsorption isotherm, and the mechanism of the inhibition can be ascribed to the mixed effect on cathodic and anodic reactions. The synergistic effect was also addressed in the present work.

scholarly journals Utilization of Natural Extracts as Corrosion Inhibitors in the Seawater Environment

2021 ◽  
Vol 16 (2) ◽  
pp. 68-74
Author(s):  
Pocut Nurul Alam ◽  
Cut Meurah Rosnelly ◽  
Justaman Arifin Karo karo ◽  
Akhar Ilhamdi ◽  
Raiyan Soekarno ◽  
...  
Keyword(s):  
Corrosion Rate ◽  
Corrosion Inhibitors ◽  
Chloride Ions ◽  
Natural Material ◽  
Soaking Time ◽  
Natural Extracts ◽  
Seawater Environment ◽  
Time Variations ◽  
Organic Inhibitors ◽  
Organic Corrosion Inhibitors

Infrastructures in coastal area are mostly made of metal which is susceptible to corrosion due to direct contact with the seawater. The Seawater greatly affects the corrosion rate of metals because it contains chloride ions which can penetrate metal surface. The process of corrosion can be inhibited or slowed by decreasing the corrosion rate in one way, namely the addition of corrosion inhibitors derived from natural materials containing tannin compounds. This study proposed organic corrosion inhibitors which were derived from natural material extracts (coffee leaves and catappa leaves), the effect of time variations on the efficiency of organic inhibitors was investigated, and the efficiency of each inhibitor organic was compared. The corrosion rate with and without inhibitors was analysed by using the method of weight loss. The results showed that the corrosion rate can be reduced by adding the natural ingredients extract. The addition of 2% concentration coffee leaves extract resulted in the lowest corrosion rate with the addition of 0.00226 mmpy. The addition of catappa leaves extract concentration as much as 2% yield the lowest corrosion rate with the addition of 0.0012 mmpy. The highest efficiency of inhibition system was obtained by using 2% catappa leaves extract at 14 days soaking time at 69.23%, and the lowest by using 1% coffee leaves extract. 

scholarly journals Metal-free coumarate based ionic liquids and poly(ionic liquid)s as corrosion inhibitors

2020 ◽  
Vol 1 (4) ◽  
pp. 584-589 ◽  
Author(s):  
Esther Udabe ◽  
Maria Forsyth ◽  
Anthony Somers ◽  
David Mecerreyes
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Polymer Coating ◽  
Corrosion Inhibitors ◽  
Protective Layer ◽  
Inhibition Effect ◽  
Metal Free ◽  
Layer Effect ◽  
Organic Inhibitors ◽  
Poly Ionic Liquid

Metal-free organic inhibitors that can be incorporated into a polymer coating have great potential, since they can add their intrinsic inhibition effect to the protective layer effect of a polymer coating.

Sign in / Sign up

Export Citation Format

Share Document