Spectroscopic and Computational Studies of Aqueous Ethylene Glycol Solution Surfaces

2005 ◽  
Vol 109 (2) ◽  
pp. 811-818 ◽  
Author(s):  
Elizabeth L. Hommel ◽  
John K. Merle ◽  
Gang Ma ◽  
Christopher M. Hadad ◽  
Heather C. Allen
Keyword(s):  
Ethylene Glycol ◽  
Computational Studies ◽  
Aqueous Ethylene Glycol ◽  
Glycol Solution

Studies on Corrosion of Mg-Al-Zn Alloy in 30% Aqueous Ethylene Glycol

2015 ◽  
Vol 830-831 ◽  
pp. 679-682
Author(s):  
Harishbhat Medhashree ◽  
A.Nityananda Shetty
Keyword(s):  
Ethylene Glycol ◽  
Electrochemical Impedance ◽  
Activation Parameters ◽  
Corrosion Studies ◽  
Automobile Engines ◽  
Different Temperatures ◽  
Aqueous Ethylene Glycol ◽  
Engine Components ◽  
Glycol Solution ◽  
Zn Alloy

The Mg-Al-Zn alloy is used in the coolant systems of automobile engines. Corrosion of Mg-Al-Zn engine components by coolants, which consist of 30% aqueous ethylene glycol as a coolant composition, is an important issue in automobile industries. With this preview, in the present study it is intended to study the effect of environmental contaminant sulphate ions on the corrosion behavior of Mg-Al-Zn alloy in 30% (v/v) aqueous ethylene glycol solution. Electrochemical investigations were carried out by potentiodynamic polarization and electrochemical impedance spectroscopy techniques. Scanning electron microscopy (SEM) and energy dispersion X-ray analysis (EDX) were used to study the surface morphology and composition of the alloy. Activation parameters for the corrosion process were calculated by conducting the corrosion studies at different temperatures. It was observed that corrosion rate of the alloy in 30% (v/v) aqueous ethylene glycol increases with the increase in the concentration of sulphate ions and also with the increase in temperature.

Micellization Behavior of Cationic Gemini Surfactants in Aqueous-Ethylene Glycol Solution

2011 ◽  
Vol 14 (4) ◽  
pp. 555-562 ◽  
Author(s):  
Deepti Tikariha ◽  
Birendra Kumar ◽  
Namrata Singh ◽  
Kallol K. Ghosh ◽  
Pierluigi Quagliotto
Keyword(s):  
Ethylene Glycol ◽  
Gemini Surfactants ◽  
Cationic Gemini Surfactants ◽  
Aqueous Ethylene Glycol ◽  
Glycol Solution ◽  
Micellization Behavior

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.

Electrochemical micromachining of ZrCu-based amorphous alloy in ethylene glycol solution

2021 ◽  
Vol 132 ◽  
pp. 107155
Author(s):  
Hang Yusen ◽  
Yang Tao ◽  
Xu Zhengyang ◽  
Zeng Yongbin
Keyword(s):  
Amorphous Alloy ◽  
Ethylene Glycol ◽  
Electrochemical Micromachining ◽  
Glycol Solution
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