Eco-friendly sodium gluconate and trisodium citrate inhibitors for low carbon steel in simulated cooling water system: Theoretical study and molecular dynamic simulations

This chapter studies the operational parameters effects, such as immersion time, corrosion products, and pH, on the inhibition efficiency against corrosion for low carbon steel in simulated cooling water system of the mixture 1 (10-3 M 3-MPOX + 20 ppm CTAB), which corresponds to the best inhibition efficiency. The results show that the corrosion inhibition performance of the studied mixture reinforces with immersion time and has a maximum in the pH range 6.5–7.5. In addition, the analysis of the results shows that there is a dependence of the pH value of the solution and the corrosion current density (icorr). Indeed, a correlation can be established between log (icorr) and the pH using the polynomial equation. Finally, the mixture 1 provides good protection for the attack materials. These studies were evaluated from the polarization curves (PP), electrochemical impedance spectroscopy (EIS).

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Corrosion and scale inhibition of low carbon steel in cooling water system by 2-propargyl-5-o-hydroxyphenyltetrazole

Journal of Industrial and Engineering Chemistry ◽

10.1016/j.jiec.2013.03.012 ◽

2013 ◽

Vol 19 (6) ◽

pp. 1996-2003 ◽

Cited By ~ 48

Author(s):

N. Dkhireche ◽

A. Dahami ◽

A. Rochdi ◽

J. Hmimou ◽

R. Touir ◽

...

Keyword(s):

Carbon Steel ◽

Water System ◽

Cooling Water ◽

Low Carbon Steel ◽

Low Carbon ◽

Cooling Water System ◽

Scale Inhibition

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Effects of Concentration and Temperature on Corrosion and Scale Inhibitive Behavior of Uncaria gambir Extract for Low-Carbon Steel in Cooling-Water Solution

Surface Engineering and Applied Electrochemistry ◽

10.3103/s1068375520060137 ◽

2020 ◽

Vol 56 (6) ◽

pp. 746-753

Author(s):

Jiraphan Pleanteangthume ◽

Manthana Jariyaboon

Keyword(s):

Carbon Steel ◽

Water Solution ◽

Cooling Water ◽

Low Carbon Steel ◽

Low Carbon

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Influence of Iron Bacteria on the Corrosion Behavior of Carbon Steel: SEM Study

Jurnal Teknologi ◽

10.11113/jt.v65.1328 ◽

2013 ◽

Vol 65 (1) ◽

Author(s):

E. Hamzah ◽

C. L. Khohr ◽

Ahmad Abdolahi ◽

Z. Ibrahim

Keyword(s):

Carbon Steel ◽

Cooling Water ◽

Low Carbon Steel ◽

Iron Hydroxides ◽

Low Carbon ◽

X Ray Diffraction ◽

X Ray ◽

Iron Bacteria ◽

Microbially Influenced Corrosion ◽

Sem Study

In this work, the iron bacteria were cultured and inoculated into the cooling water before immersion, and low carbon steel coupons were immersed for one month. Then, microbially influenced corrosion (MIC) of carbon steel in the presence of these bacteria was investigated using scanning electron microscopy (SEM), x-ray diffraction spectroscopy (XRD) and weight loss methods. SEM results showed that large amounts of corrosion products and heterogeneous biofilm layer were formed on the coupon surface. SEM also revealed the uniform-pitting corrosion on the steel surface due to bacteria colonization. XRD results show that the main constituents present in corrosion product are composed of iron oxides and iron hydroxides.

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