Effect of inorganic inhibitors on the corrosion behavior of 1018 carbon steel in the LiBr+ethylene glycol+H2O mixture

Using a Doe and Eis to Evaluate the Synergistic Effects of Low Toxicity Inhibitors for Mild Steel

“…Similar to results reported by other authors (Granero et al, 2009;Samiento-Bustos et al, 2008), all diagrams exhibit depressed capacitive loops, indicating that complex phenomena are taking place at the interface. In accordance with the polarization curves, the results show that all the substances increase the impedance response, demonstrating that they are hindering the corrosion activity to different extents.…”

“…Smaller anodic currents were found in the following order: sodium tungstate ≈ sodium molybdate < polydimethyl-modified siloxane copolymer < copper Phthalocyanine, indicating better performance for the first two inhibitors. For the inhibitors that presented the lowest anodic currents (sodium tungstate and sodium molybdate), a clear passive region was verified, which can be indicative of insoluble film formation between the inhibitors and the ions of the corroding metal (Samiento-Bustos et al, 2008;Shibli and Saji, 2005). In the solution containing molybdate, the substrate exhibited the smallest passive current density, and a repassivation peak was detected at approximately -400 mV (Ag/AgCl), which can be likely due to the precipitation of a protective film.…”

“…Such a statistical tool allows synergistic effects between different parameters to be quantified based on a limited number of planned experiments; quantitative analyses are performed using adequate software. Typical applications of this approach to different research domains can be found in Saji and Shibli (2002) and Samiento-Bustos et al (2008). A comprehensible explanation about the methodology is presented by Box et al (2005).…”

Lornoxicam & Tenoxicam Drugs as Green Corrosion Inhibitors for Carbon Steel in 1 M H2SO4Solution

“…[7][8][9][10][11][12] However, the use of these compounds has been questioned lately, due to the several negative effects they have caused in the environment. 13) Thus, the development of the novel corrosion inhibitors of natural source and non-toxic type has been considered to be more important and desirable.…”

Electrochemical Corrosion Behavior of Duplex Stainless SteelAISI 2205 in Ethylene Glycol-Water Mixture in the Presence of50 W/V % LiBr

“…Although LiBr possesses favorable thermo physical properties, it can cause serious corrosion problems on metallic components such as carbon steel, stainless steel, copper alloys and titanium in refrigeration systems and heat exchangers in absorption plants [3]. An alternative way to reduce some of these disadvantages of the water/LiBr mixture is to add ethylene glycol to the system [4,5], because some thermo physical properties of the LiBr +water mixture, such as thermal conductivity, viscosity, maximum concentration etc.…”