...Batch inhibition mild steel TLC mitigation inhibitor concentration INTRODUCTION Corrosion leads to economic costs equivalent to 4-5% of gross national product (GNP), environmental contamination, infrastructure degradation, safety risks, reputational damage, and litigation ¹ . However...

... contains magnesium (Mg²⁺) and calcium (Ca²⁺) ions. Although carbon dioxide (CO₂) corrosion of mild steel and its corrosion products has been extensively studied, the effect of Mg²⁺ and Ca²⁺ are frequently overlooked by researchers. Usually, a simple...

..., on the CO₂ corrosion mechanism. The main objectives of this research are to further broaden the mechanistic understanding of CO₂ corrosion of mild steel in the presence of high concentrations of calcium ions and evaluate the protectiveness of CaCO₃ scale against further corrosion...

.... The results of PDP study revealed that IP act as mixed type inhibitor. The results of EIS studies showed that IP inhibits the mild steel corrosion through the adsorption mechanism. The adsorption of synthesized phenylalanine derived Zwitterion on the mild steel surface was followed the Langmuir adsorption...

... * Corresponding author: Email: [email protected] (Liu); [email protected] (Gui) Abstract The corrosion bebavior of mild steel in two Brønsted acidic ionic liquids (BAILs) with different cationic centers, triethylammonium and pyridinium-type, was electrochemically investigated in non...

...(4) HAc ( aq ) ⇌ H ( aq ) + + Ac ( aq ) − Abstract Recent developments in understanding the mechanism of mild steel corrosion in the presence of carboxylic acids, carbon dioxide, and hydrogen sulfide has challenged the conventional views to corrosion in anoxic...

... to be able to capture the main characteristic experimental behavior with reasonable accuracy, further supporting this mechanistic argument. Hydrogen sulfide Corrosion Mechanism Mild steel Electrochemical Polarization INTRODUCTION In the presence of an aqueous medium, the hydrogen sulfide...

... Fe₃C Mild Steel API X65 Steel Pure Iron INTRODUCTION Localized corrosion is a common failure mode in sour environments ¹ found in oil and gas pipelines containing CO₂, H₂S, and brine. For instance, the Caroline oil spill at Sundre, Alberta, Canada on Jan 6, 1994...

...Abstract The polarization behavior of API 5L X65 mild steel at various pH values and CO₂ partial pressures was investigated at a high flow velocity. In contrast to the commonly accepted mechanistic view of CO₂ corrosion, it is shown that the direct reduction of carbonic acid...

...low H₂S corrosion localized attack threshold value mild steel INTRODUCTION The type of corrosion observed inside upstream oil and gas production pipelines is, among other variables, related to the chemistry of the water phase, which is directly influenced by the partial pressures...

... the functionalization of a hybrid sol-gel polymeric coating with MOLY ⁽¹⁾ or ZAPP ⁽²⁾ corrosion inhibitors and viable endospores of Bacillus licheniformis isolate (B6). The resulting functionalized coatings were applied to S36 grade mild steel substrate and their corrosion protection...

...The test specimens were machined from a 30 mm thick hot-rolled plate. The plate was austenitized at 920°C for 30 minutes and then quenched in cold water, followed by a tempering heat treatment at 590°C for 30 minutes and then air cooled. The microstructure of the UNS K02700 grade mild steel plate...

... to study corrosion rate, anode life, interference mitigation, etc., when the pipeline is subjected to both steady state and pulsed DC output. Galvanic anodes impressed current cathodic protection system (ICCP) alternating current (AC) direct current (DC) Mild steel pipe to soil potential (PSP...

...The SG hybrid material, embedded with biocides of interest, was freshly coated on mild steel panels to assess their anticorrosion and antifouling behavior in saline media. The surfaces of all biocide-embedded coated samples after curing appear homogenous and intact with no signs of immediate...

... be controlled with thoughtfully planned treatments using appropriate corrosion inhibitors. corrosion inhibition batch treatment mild steel CO₂ corrosion rod pumped wells INTRODUCTION The two primary methods for treating wells using corrosion inhibitor are through continuous and batch treatment...

...Abstract At the Soultz-sous-Forêts Enhanced Geothermal System (EGS) site, impairment of cast iron and mild steel surfaces was observed on downhole equipment like production pump, production pipes and some parts of the inner casing. The impairment went always along with arsenic enrichment...

... water-based electrolytes, and in vapor/electrolyte inter phase. Simple preparations of these bio-based aromatic acids demonstrated that some of these materials possess ability of vapor phase corrosion inhibition (VCI). Some preparations of the bio-based acids showed potential as additive for mild steel...

..., purines, alkaloids (e.g. caffeine) and polyphenols (catechins and flavonoids). Abstract The effect of Camellia Sinensis (green tea) extract as a ‘green’ inhibitor on mild steel corrosion in 0.5M HCl and 0.8M H₂SO₄ was studied at ambient temperature. Weight loss/corrosion...

... * Correspondence author: Yanxia Du, E-mail: [email protected] , Fax: +86 10 62334410 During the immersion corrosion test, CP potentials of mild steel specimens subjected to various AC were recorded at regular intervals, as shown in Figure 5 ~ 8 . It is obvious from Figure 5 ~ 8 that when...

.... A preliminary study was conducted at 1 bar to investigate the effect of oxygen ingress on the iron carbonate (FeCO₃) corrosion product layers generated during CO₂ corrosion of mild steel. Carbon steel (UNS G10180) samples were immersed in a CO₂-saturated 1 wt.% NaCl electrolyte...