... down further corrosion. Temperature, CO₂ partial pressure and pH are the main environmental parameters controlling FeCO₃ properties. However, the combined effects of flow and material microstructure on the formation of FeCO₃ have not been well documented...

... carbide overlay coupons at dissolved oxygen levels higher than 2.5 ppm. Not surprisingly, negligible corrosion was observed on stainless steel materials irrespective of coupon surface or flow condition. Corrosion Pipeline Oil sands Flow RCE LPR BACKGROUND Slurry pipeline systems are used...

...Abstract Corrosion rates in model oil sands coarse tailing slurries were investigated using a linear polarization resistance probe. The study was conducted in a pilot-scale horizontal slurry flow loop. Slurry consisted of either unimodal (sand) or bimodal (sand and rocks) solid particles...

... study were designed to develop a range of specific corrosion product layers on mild steel samples. Experiments were conducted at constant Cl^- concentration with and without 10,000 ppm Ca²⁺ in stagnant conditions, for two different flow conditions. In stagnant conditions, localized...

... 1 Present address: Aker Subsea AS, PO Box 94, 1325 Lysaker, Norway Abstract Thermally-sprayed aluminum (TSA) is known to provide satisfactory and long-time corrosion protection to steel structures in seawater. Information about its performance under high velocity flow conditions is limited...

... Specifically, the rotating cage method was found to be more corrosive than other methods, although it was noted that ‘further characterization of the flow pattern and flow effects on the sides of the coupons is necessary'. ¹ This characterization is one of the objectives of the current article...

...Electrochemical Tests localized corrosion steel duplex steel flow sulfide geothermal energy INTRODUCTION Since geothermal wells are a feasible energy source to replace fossil fuel supply, many technologies have been developed to take advantage of geothermal energy. Nevertheless, service...

...&G) industries, corrosion susceptibility of materials and inhibitor performance are often evaluated by testing their performance in the laboratory using rotating cage autoclave (RCA). Impact of RCA design modification on fluid flow pattern inside the autoclave is studied in this paper. Computational...

...1 Corresponding author, [email protected] . Commissioned at PUNTA - UNAM. PIIT. Apodaca, NL., Mexico Abstract The effect of turbulent flow conditions on the kinetics and mechanism of two relevant corrosion processes is studied and analyzed: inhibitors evaluation and electrochemical behavior...

...For Al-alloy anode, the obtained slope of 0.6926 ( Figure 8 ), means that corrosion rate is controlled by mass transfer process. CONCLUSIONS Flow exerts a marked effect on the electrochemical behavior of the studied Al-Zn-Mg alloy and Zn galvanic anodes. For the different rotation rates studied...

..., the surface condition (ground, pre-scaled) and the presence of hypochlorite significantly influence the materials resistance to flow induced localized corrosion (FILC). The performance of CuNi alloys in clean artificial seawater was found to be similar to the behaviour in clean natural seawater...

...Anodic and cathodic polarization tests and EIS measurements were carried out in this electrochemical test segment. The polarization tests were carried out in order to determine the effect of flow on the anodic and the cathodic kinetics of the corrosion process. The test environment was an aqueous...

... and then potentiostatically controlled at a potential of -900 mV, at which potential the cathodic current was predominantly due to oxygen reduction. At each rotation rate the potential was maintained for 5 minutes and the current measured. From these measurements (reported in detail in [ 7 ]), it was determined that the flow...

...Abstract It is known that electrochemical noise can be generated as a result of fluctuations in flow. This work has studied the effect of steady flow in both the laminar and turbulent regimes on the production of electrochemical noise. Experiments have been performed with applied cathodic currents...

...Electrochemical Behavior The RCE has been used extensively in corrosion research because of the fact that the flow is essentially turbulent even at very low rotational velocities ^{6 , 7} . The critical Reynolds number, Re, for the transition from laminar to turbulent flow lies...

... = 0 Under steady-state condition, mass conservation for dissolved O₂ including flow can be expressed by: (2) − D O 2 ( ∂ 2 c O 2 ∂ z 2 + ∂ 2 c O 2 ∂ y 2 ) + u ∂ c O 2 ∂ z + v ∂ c O 2 ∂ y...

... cited in Table 7 have been corrected to 24 °C. The maximum values correspond to exposure times of ~12 hours. The final values were recorded at test termination. Tests ^#2 evaluated the effect of flow rate. The initial velocity was 84 cm/min, which was doubled on the 3^rd day...

... for the various models. All of them require - as input - temperature, pressure and CO₂ content, while some of them require gas, oil and water production rates and others ask only for liquid flow velocity ² . Models can be conservative and non conservative. De Waard and Norsok ^{3 , 4 , 5}...

...The effects of flow on corrosion of carbon steel in oil and gas production are numerous. Before going into any detail, it is noted that the primary parameters in any corrosion assessment are the presence of free water and the level of corrodents, like CO₂, H₂S, organic acids...

.... The composition of the electrolyte influences the magnitude, the distribution, and often the direction of the galvanic current flow. High-conductivity fluids tend to spread out the galvanic currents over larger surface areas, when possible, while low conductivity fluids will limit the galvanic current...