The corrosion inhibition of mild steel in 0.5M H2SO4 solution was studied the presence Corchorus olitorius stem extract as inhibitor. Phytochemical analysis results confirmed organic constituents such Alkaloids, Tannins, Glycosides, Saponins and Flavonoids which made act a good highest efficiency observed from experimental design 93.29%, with process levels 4 days, temperature: 60 °C inhibitor ...

Tolyltriazole (TTA) is a well-defined corrosion inhibitor for copper and alloys. However, there little literature about its inhibition performance mild steels in corrosive environments. This paper studied the electrochemical behavior of TTA 0.5 M HCl solutions. Also, morphology nature layers on steel surface were investigated. Electrochemical results showed that an excellent acidic media with e...

A mini-flowloop was developed to study CO2 corrosion and corrosion/erosion interactions, and to assess the effectiveness of inhibitors under conditions that simulate multi-phase pipelines. The miniflowloop was used to study the effect of testing time, steel chemistry, velocity, temperature, fluid chemistry, sand and inhibitors on corrosion rates. The measured corrosion rates in inhibited and un...

The electrochemical behaviour for passivation of new alloy corrosion-resistant steel Cr10Mo1 immersed in alkaline solutions with different pH values (13.3, 12.0, 10.5, and 9.0) and chloride contents (0.2 M and 1.0 M), was investigated by various electrochemical techniques: linear polarization resistance, electrochemical impedance spectroscopy and capacitance measurements. The chemical compositi...

The corrosion behavior of mild steel (Ck 45) in 3.0 M H3PO4 solution in the absence and presence of penicillin G was studied using potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques. The best inhibition effect at 10 mM of drug was a marked characteristic of the inhibitor. It was found that the inhibition efficiency of the inhibitor...

A biodegradable polysaccharide-based inhibitor is grafted with polyacrylamide (PAM) for oilfields’ sweet corrosion. The green properties of agar and PAM were incorporated to synthesize an agar-grafted-PAM (AGGPAM) inhibitor. Electrochemical tests Tafel AC impedance, used determine the corrosion rate carbon steel (C-steel) protection efficiency in CO2-saturated 3.5 wt% NaCl solution. surface mor...

The structure of a titanium nitride film coated by arc ion plating on a Ni-50Ti shape memory alloy was characterized by X-ray photoelectron spectroscopy (XPS). The corrosion behavior of the titanium nitride-coated Ni-50Ti alloy was examined in 0.9% NaCl solution by potentiodynamic polarization measurements and a polarization resistance method. XPS spectra showed that the titanium nitride film c...

Unambiguous evidence is presented that the chloride ions play a dual role in formation of micrometre thick film polymerized [Cu-Cl-MBI] n . This occurs when copper exposed to 3 wt.% NaCl solution containing 1 mM mixture inhibitors 2-mercaptobenzimidazole, MBI, and octylphosphonic acid, OPA, molar ratio MBI:OPA 9:1. The act simultaneously as promoter [Cu–MBI] /[Cu–Cl–MBI] reactant incorporated f...

In principle, any method to determine the corrosion rate can be used to test a corrosion inhibitor. The primary criterion for evaluation is the inhibitor efficiency. Inhibitors having sufficiently high efficiency are tested for "side effects," which include environmental compatibility, emulsion formation, viscosity and pour point density. Finally, the inhibitor formulation is tested in the fiel...

Matrix Analysis of Corrosion Inhibition Phenomena (MACIP), in which an inhibitor isconsidered as a point in a multi-dimensional virtual efficiency space, was performed on somepyridine derivatives. The needed molecular parameters such as HOMO and LUMO energylevels, charge densities on hetero atom, dipole moment, heat of formation, and total energyvalues were obtained by means of semi-empirical q...