...Current density required to achieve 100mV of cathodic polarization was estimated from polarization data. The mean current density required was estimated to be 3.3 (± 0.7) mA/m² (95% CI), with no sample requiring more than 10mA/m². The distribution of readings is shown...

... for corrosion mitigation. The effectiveness of the ZRP coating strongly depends on the pigment volume concentration and bonding to the steel substrate. Beneficial cathodic polarization occurs when the dispersed zinc pigments have continuity with the steel substrate. Carbon nano-particles are being considered...

... properties was combined with studies of corrosion resistance of different regions by means of immersion tests (ASTM G48) ^{(3) 33}, electrochemical analysis and polarization tests (large scale and with a micro-cell). Selection of base material was performed according to Table A.24 of NACE MR0175/ISO...

... Mechanism Polarization pKa INTRODUCTION In order to develop a generic view to the corrosion in the presence of weak acids, a brief review of the literature on the mechanism of corrosion in the presence of weak acids such as organic acids, carbonic acid and hydrogen sulfide is necessary. In all cases...

.... Such an argument has been developed based on the distinctive behavior of cathodic polarization curves in H₂S containing solutions, as compared to the behavior observed in the solutions of strong acids or those in presence of other weak acids such as carboxylic acids and carbonic acid. The direct...

... by another work done by Pynn & Abed. ¹ which showed an amine carboxylate based corrosion inhibitor worked as a cathodic polarizer and resulted in reduction of corrosion current and cathodic corrosion current. The study also suggested a synergistic effect of cathodic protection...

... Tungsten carbide Inconel Polarization Impedance INTRODUCTION One of the most prominent concerns in the oil and gas production industry is the behavior of materials in an aggressive environment which contributes to corrosion of the surface. This effect plays a major role in equipment reliability...

...Electroless Ni-P coating Corrosion resistant alloys EIS Polarization Pitting corrosion Abstract In this study, a high-phosphorus Ni-P coating was prepared by electroless deposition method. The characteristics and corrosion property of electroless Ni-P coating were investigated by surface...

... the effect of higher oxygen concentration on cathodic corrosion kinetics when the electrolyte is controlled with thicknesses on the order of 40-80 μm ( Figure 3 ). The working electrode is a 25.4 mm by 25.4 mm square piece of the material of interest (SS316 in this case for cathodic polarization measurements...

... stress corrosion cracking polarization INTRODUCTION The serious energy and environment problems are one of the serious tasks for humanity at present. With the increase of these concerns, the district energy system has been on the rise as an improvement measurement in environment and economic...

... boundaries for 316L in anoxic CO₂ saturated brines to be tentatively defined. However, whilst the polarization tests performed demonstrate that that the highest exposure temperature is not necessarily the point at which the risk of passive film breakdown is highest (in contradiction to normal...

... mortar activator anode cathodic protection chlorides continuity CP jacket galvanic high resistance marine environments passivate polarization reference electrode reinforced concrete voltage potential INTRODUCTION The Seven Mile Bridge (Type 1) A Type 1 CP system was also installed...

... to cathodically polarize towards the potential of the anode coupon, thereby reducing I_CORR to 0μA to effectively mitigate the macrocell. Initial 3g of VPCI(x) was added to the solution while I_CP was maintained at 5.5mA. Both coupons shifted electronegative, indicating they were being...

... dissolution depth of metal-gasket crevice specimen was deeper than that of metal-metal crevice specimen. weld steel corrosion stress corrosion cracking polarization INTRODUCTION Under Korea DH heat exchanger conditions, the perforation and crack of 316L plate under gasket have been the causative factor...

...” with the CSE inside the reference tube. For this test the instant-off potential was taken with the micro-switch open and closed. Test H – Polarization development (Test E - Test A) Test I – Micro-amps (µA) current across the micro-switch (SW1) with the switch in the open position. Abstract Degradation...

...EXPERIMENTAL Three carbon steels for the production of coil springs and stabilizer bars were used for electrochemical polarization and the 72-hour immersion test in 5% NaCl solution. Table 1 shows the typical chemical composition of the materials. The heat treatment processes were conducted...

...Abstract The aim of this research focused on obtaining an understanding of the role of chromium in a binary iron aluminides in aqueous environments, i.e. 0.25 M sulfuric acid. Using a binary Fe-26Al and X8 CrNiS 18-9 alloy for comparison purposes, electrochemical potentiodynamic polarization...

... to determine the corrosion resistance and transpassive potential for the steel grades. The influences of chemical composition and phase structure on the corrosion resistance are discussed in this paper. Stainless steel Polarization Acid corrosion INTRODUCTION Nitric acid (NA) is produced by the oxidation...

..., potentiodynamic polarization test is conducted in 3.5 wt% sodium chloride (NaCl) solution. The immersion test is conducted in acidified 6% ferric chloride solution and green death solution by following ASTM G48. The critical pitting temperatures of these alloys are detected in both test solutions. Wear testing...

...Carbon steel EIS Polarization benzimidazoles HCL DFT INTRODUCTION Abstract The corrosion inhibtion behaviour of two new benzimidazole derivatives namely 2-(2-Bromophenyl)-1H-benzimidazole (BPBA) and 2-(2-Bromophenyl)-1-methyl-1H-benzimidazole (BPMA) on carbon steel in 0.5 M HCl solution...