Corrosion inhibitors for cast iron and other metals in ethylene glycol solutions and in mains water

2007 ◽  
Vol 9 (11) ◽  
pp. 577-588 ◽  
Author(s):  
A. D. Mercer ◽  
F. Wormwell
Keyword(s):  
Cast Iron ◽  
Ethylene Glycol ◽  
Corrosion Inhibitors

scholarly journals Assessing of New Coatings for Iron Artifacts Conservation by Recurrence Plots Analysis

Coatings ◽  
2018 ◽  
Vol 9 (1) ◽  
pp. 12 ◽  
Author(s):  
Paola Roncagliolo Barrera ◽  
Francisco Rodríguez Gómez ◽  
Esteban García Ochoa
Keyword(s):  
Cast Iron ◽  
Statistical Analysis ◽  
Corrosion Inhibitors ◽  
Electrochemical Noise ◽  
High Humidity ◽  
Recurrence Plots ◽  
Surface Corrosion ◽  
Temporary Protection ◽  
Protection Method ◽  
Iron Artifacts

Cast iron has stood for centuries of invention. It is a very versatile and durable material. Coating systems are a low-maintenance protection method. The purpose of this research is to increase the Paraloid coating’s resistance when applied to iron in high humidity atmospheres, with the addition of caffeine (1,3,7-dimethylxanthine) and nicotine (S)-3-(1-methylpyrrolidin-2-yl) pyridine as corrosion inhibitors; the resistance of protection versus exposure time will be evaluated by using electrochemical noise. A statistical analysis of the electrochemical noise signals was carried out. Recurrence plots were used as a powerful tool in the analysis to complement the data obtained and they predicted the evaluation of coatings behaviors performance versus time. The outcomes show that the addition of inhibitors increases and improves the performance as a temporary protection of Paraloid and that protection in high relative humidity was improved. Recurrence plots and parameter quantification show the variances in the surface corrosion dynamics.

Cavitation Erosion and Corrosion of Pearlitic Gray Cast Iron in Non-Standardized Cavitation Conditions

2014 ◽  
Vol 225 ◽  
pp. 19-24 ◽  
Author(s):  
Jarosław Chmiel ◽  
Robert Jasionowski ◽  
Dariusz Zasada
Keyword(s):  
Corrosion Resistance ◽  
Cast Iron ◽  
Ethylene Glycol ◽  
Cavitation Erosion ◽  
Gray Cast Iron ◽  
Gray Cast ◽  
Test Environment ◽  
Iron Grade

A results of test of erosion and corrosion resistance of pearlitic gray cast iron (grade EN GJ 400) are showed. The NaCl solutions and of ethylene glycol solutions were used as the test environment. Examination were performed at varying cavitation load, in the range 2,8 ÷ 20 W/cm2.

Effect of different corrosion inhibitors on the corrosion of cast iron in palm biodiesel

2011 ◽  
Vol 92 (11) ◽  
pp. 2154-2159 ◽  
Author(s):  
M.A. Fazal ◽  
A.S.M.A. Haseeb ◽  
H.H. Masjuki
Keyword(s):  
Cast Iron ◽  
Corrosion Inhibitors

scholarly journals Corrosion Study of Aluminum Alloy 3303 in Water-Ethylene Glycol Mixture: Effect of Inhibitors and Thermal Shocking

2019 ◽  
Vol 2019 ◽  
pp. 1-6 ◽  
Author(s):  
Mohammad Asadikiya ◽  
Yu Zhong ◽  
Mohammad Ghorbani
Keyword(s):  
Stainless Steel ◽  
Aluminum Alloy ◽  
Corrosion Rate ◽  
Ethylene Glycol ◽  
Mild Steel ◽  
Corrosion Inhibitors ◽  
Galvanic Corrosion ◽  
Aqueous Ethylene Glycol ◽  
Glycol Solution ◽  
Effect Of Inhibitors

Three types of corrosion inhibitors consisting of sodium diphosphate (Na2H2P2O7), sodium benzoate (NaC7H5O2), and sodium tetraborate (Na2B4O7) were evaluated to analyze their effectiveness to inhibit the aluminum alloy 3303 (UNS A93303) against corrosion, in water-ethylene glycol (C2H6O2) mixture. Potentiodynamic polarization tests were carried out to study the effect of each chemical. The temperature of solutions was 88°C and the aluminum samples were coupled with five other metals consisting of mild steel, stainless steel, brass, copper, and solder to include the effect of galvanic corrosion. The results showed that sodium diphosphate can effectively protect the aluminum alloy 3303 in comparison with two other chemicals. The effect of thermal shocking on the corrosivity of water-ethylene glycol solution was also investigated. It was indicated that the corrosivity of water-ethylene glycol solution increases because of thermal shocking, which oxidizes the aqueous ethylene glycol. The corrosion rate of aluminum alloy 3303 coupled with the five metals in thermal shocked water-ethylene glycol solution is 142 mpy, while it is 94 mpy in fresh water-ethylene glycol solution.

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