2.14Mg→Mg++e−anodicpartialreaction 2.15kMg+→kMg2++ke−anodicpartialreaction 2.161−kMg+(1−k)H+→(1−k)Mg2++(1−k)/2H2chemicalreaction 2.171+kH++1+ke−→1+k/2H2cathodictotalreaction This mechanism of dissolution is supported by the fact that the corrosion rate of magnesiu...
Considering the above mechanisms, several measures can be taken to impede the dissolution of the magnesium alloy: (1) to control the amount of the aggressive anions in the environment; (2) to increase the content of the reaction products, thus changing the reaction equilibrium and retarding the ...
The electrochemical reaction mechanism of galvanized high-strength steel wires (GHSSWs) has not been fully elucidated. Scholars have observed a significant discrepancy between the theoretical mass loss rate calculated using the Faraday equation for electrochemical corrosion and the experimental values. To ...
2.1. General Corrosion is an electrochemical reaction process between a metal or metal alloy and its environment [37]. For corrosion to occur, four conditions must exist, namely, an anode, a cathode, an electrolyte, and an electrical path (flow of electrons). The anode and the cathode could...
A exp ?14? x This is commonly known as the high field equation. It similar to the Tafel equation for activation controlled electrochemical reactions with the additional feature that the potential driving the reaction lies across an oxide film of variable thickness, x, rather than across the ...
The original process of sulfolane synthesis is based on the hydrogenation of 3-sulfolene (3) obtained as a product of sulfur dioxide (2) and butadiene (1) reaction (Scheme 1). 163 2.1. Synthesis and Manufacturing 164 Sulfolane is a non-reactive, water-soluble dipolar aprotic industrial ...
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A modified polarization equation is presented, based on mixed charge-transfer and diffusion control of anodic and cathodic partial reactions, and including the cathodic metal ion deposition partial reaction (back reaction). This equation can be used as a basis for curve fitting current/potential data...
Water was used as the solvent for the DFT calculation of inhibitor compounds in an aqueous media using the integral equation formalism of the polarizable continuum model (IEFPCM) [28]. Fig. 1 shows the open circuit potential (OCP) as a function of time in the absence and presence of ...
From an experimental point of view, the formation of (Fe,Al)Si-HG by reaction of iron corrosion products with Si, Ca, Al diffusing from the porewater of the HCP is highly likely (Fig. 11). It is probable that reactive Fe3+ iron corrosion products had first formed during the cement ...