... pitting plastic deformation potentiostatic I nclusions are commonly found in metallic materials and can significantly affect alloy properties. In stainless steel, inclusions are the primary initiation sites for pitting. ^{1 - 6} Modern stainless steels primarily contain complex...

... dissolved oxygen galvanostatic modeling pitting potentiodynamic potentiostatic repassivation potential stainless steel UNS S31603 UNS S32205 I n the upstream oil and gas industry, corrosion-resistant alloys (CRAs) are widely selected to handle seawater and brines in piping, valves, pumps...

... sensitized AA5083 samples. To achieve this, various analytical techniques were used, including profilometry, optical microscopy, scanning electron microscopy, energy dispersive x-ray spectroscopy, and localized potentiostat scans. The results of this investigation showed that laser surface melting (LSM) led...

... this phenomenon, this work focuses on using the potentiostatic technique to evaluate the tendency of localized corrosion propagation. The experiments were conducted using a primarily imidazolinium-based corrosion inhibitor in produced water conditions (5 wt% NaCl, pH 4.5, CO₂-saturated) at 55°C and 80...

... irregularity. ^‡ Corresponding author. E-mail: [email protected] . 11 01 2023 12 03 2023 12 03 2023 © 2023, AMPP 2023 anodic polarization corrosion rate iron rot mass transfer morphological phenomena potentiostatic T he corrosion system of iron...

... environments in the presence of a supporting electrolyte. Open-circuit potential measurement, cyclic potentiodynamic polarization, and potentiostatic testing are conducted on specimens exposed to ethanolic environments prepared from pure dehydrated ethanol to study the pitting behavior of carbon steel...

... International 2019 intergranular corrosion pitting potentiodynamic potentiostatic stainless steels weld High nitrogen stainless steel (HNS) has gained more and more attention as a promising engineering material due to its favorable mechanical and corrosion properties. Nitrogen, as a powerful...

... and 150°C. Tests fluids were typically buffer solutions of pH 6 and 10 containing chloride concentrations of 17,700 ppm and 141,800 ppm. Electrochemical methods used in this study included cyclic potentiodynamic and potentiostatic polarization, as well as electrochemical impedance spectroscopy. Oil-grade...

... spectroscopy carbon steel passive film potentiostatic Warburg diffusion Regenerative processes have used alkanolamines for carbon dioxide (CO_{2) removal since the early 1930s. However, removing CO2 with alkanolamine-based gas conditioning solvent poses its own problems, i.e}...

.... ‡ Corresponding author. E-mail: [email protected] . 08 2005 NACE International 2006 chromium molybdenum nickel potentiodynamic potentiostatic repassivation Nickel-based alloys are among the most corrosion-resistant alloys in a broad range of environments. The amount of chromium...

...M. Ziomek-Moroz; W. Su; B. S. Covino, Jr Passive films on α₂ and γ titanium aluminide formed potentiostatically in sodium hydroxide (NaOH) and sulfuric acid (H₂SO₄) solutions were studied by x-ray photoelectron spectroscopy (XPS). In NaOH, potentiostatic experiments...

... metasilicate (Na₂SiO₃), on the susceptibility to IGA/ SCC of alloy 600 in caustic solutions, with and without impurities. Experimental work included measurement of potentiodynamic polarization curves and development of stress corrosion tests with potentiostatic control at 315°C. Results...

... from this analysis were compared with those determined by curve fitting analysis of potentiostatic and coulostatic transients using a simple model of the interface. Differences in the polarization resistance (R_p) values were generally within the error attributed to the R_p method...

... NACE International 1995 anodic polarization electrolytic etching intergranular corrosion potentiostatic sensitization stainless steels The most common intergranular corrosion (IGC) test method used for acceptance testing of stainless steels (SS) is the sulfuric acid...

... in ER with time. Various problems were encountered, such as gradual opening of the crevice, but these mainly resulted from use of the SSR test. The galvanostatic method was simpler than painstaking determination of the limiting value of ER followed by potentiostatic testing just above this potential...

... passivation potentiostatic sodium chloride sodium peroxide temperature The influence of sodium (Na) additions with different chemical natures (sodium peroxide [Na₂O₂] and sodium chloride [NaCl]) on the mechanism and kinetics of aluminum (Al) corrosion was investigated using...

... 01 1994 NACE International 1994 aqueous solutions chronoamperometry mild steel optical microscopy pit nucleation pitting polarization potassium hydroxide potentiostatic sodium sulfide sulfides The study of the electrochemical and chemical behavior of metals in media...

... at pH values of 5.5, 7.0, 8.5, and 10.0. While short-term (a few hours) cyclic polarization experiments at anion concentrations (or ionic strengths) typical of drinking waters were inconclusive, potentiostatic testing provided insight into Cu pitting behavior. Cl^– exhibited a time-dependent...

... on E_p is produced by certain additives that differ from the aggressive anion and exert a beneficial effect. These are referred to as inhibitors. Potentiokinetic and potentiostatic anodic polarization curves were obtained on aluminum (Al) and Al alloys in mixed solutions containing sodium chloride...

... depassivation potentiostatic scratching electrode In many engineering applications, materials are part of tribological systems subjected to surface deformation and to corrosion caused by electrochemical reactions at the solution/metal interface. The combined damage can differ widely from that found...