pipeline steel
Experimental Data Treatment of the Pipeline Steel Polarization Curve under AC Interference
... X60 pipeline steel immerged in a simulated soil solution under the condition of AC densities of 50 and 100A/m 2 ...X70 pipeline steel tested in ...
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Corrosion Behavior of X80 Pipeline Steel under Coupling Effect of Stress and Stray Current
... X80 pipeline steel was investigated in soil-simulating solution by open circuit potential (OCP) and corrosion potential test, potentiodynamic polarization measurement and surface characterisation ...X80 ...
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Effect of Temperature on Corrosion and Cathodic Protection of X65 Pipeline Steel in 3.5% NaCl Solution
... Pipeline steel has been used in the transport of petroleum, petrochemicals, natural gas and water supplies[1]. Due to different service environments, there is always a temperature gradient across different ...
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Hydrodynamic Effects on the CO2 Corrosion Inhibition of X-120 Pipeline Steel by Carboxyethyl-imidazoline
... X-120 pipeline steel has been evaluated by using electrochemical ...the steel is susceptible to uniform corrosion, whereas when the inhibitor is present, the steel is highly susceptible to ...
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Hydrogen Embrittlement Behavior on Microalloyed Pipeline Steel in NS-4 Solution
... Institute) steel grades ranging from X52 to X100 were worldwide used that exhibit the classical ferrite + pearlite microstructures to complex constituent ...of pipeline steel with higher strength and ...
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The Effect of Temperature on the Hydrogen Permeation of Pipeline Steel in Wet Hydrogen Sulfide Environments
... The experimental material was commercial X52 pipeline steel with the microstructure of typical ferrite and pearlite. The chemical composition of X52 is listed in Table 1. The specimens for the hydrogen ...
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A study of the Carboxyethylimidazoline as an H2S Corrosion Inhibitor of X-120 Pipeline Steel
... trend removal has to be applied over an average baseline as previously established [19]. It has been demonstrated that the noise signal contains information about the dynamics that occur on the surface of the electrode, ...
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Effects of the Temperature on the Hydrogen Permeation Behaviours of L360NCS Pipeline Steel in 1MPa H2S Environments
... High-temperature and high-pressure electrochemical measurement techniques, scanning electron microscopy and X-ray diffraction were applied to investigate the effects of the corrosion product films formed on the surface ...
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Experimental Study on Alternating Current Corrosion of Pipeline Steel in Alkaline Environment
... The variation of the topsoil pH value in the X70 steel surface was studied under the AC corrosion process. The cyclic voltammetry technique was employed to investigate the AC action mechanism on the X70 ...
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Investigating the Corrosion of API-X100 Pipeline Steel in Aerated Carbonate Solutions by Electrochemical Methods
... new pipeline steel of special alloying element content (table 1), and is being considered in some new projects for its high strength, but its corrosion resistance is a new research subject and this paper ...
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Role of microstructure in susceptibility of X70 pipeline steel to hydrogen embrittlement
... X70 pipeline steel manufactured by BlueScope Steel Ltd, with the nominal composition given in Table 1, was received in the form of transfer bar and ...
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Corrosion Pattern of Pipeline Steel in Petroleum Pipeline Water in the Presence of Biomas Derived Extracts of Brassica oleracea and Citrus paradise Mesocarp
... of pipeline steel in petroleum pipeline water in the presence of various con- centrations of Brassica oleracea and Citrus paradise mesocarp extracts were cal- culated using Equation ...of ...
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Electrochemical Corrosion Study of Buried Pipeline Steel X20 Affected by Stray Current
... Abstract: With the continuous development of urban city, more and more subway lines are applied in the urban rail transit systems. During the daily operation of metro, the insulation performance between running rails and ...
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Electrochemical Studies on the Corrosion Behavior of API X65 Pipeline Steel in Chloride Solutions
... For all electrochemical experiments, an Autolab Potentiostat (PGSTAT20 computer controlled) operated by the general purpose electrochemical software (GPES) version 4.9 was used to perform the electrochemical experiments. ...
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Electrochemical Investigations of Simulated Surface Scales Formed on X65 and J55 Pipeline Steel
... The selected samples for the examination are summarized in Table 1. They were provided by the institute of Venezia Technology, Italy. Two specimens were cut from the field service samples [called, Ragusa and Pakistan] ...
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Influence of AC interference on Crack Initiation Behavior of Pipeline Steel in High pH Solution
... X80 pipeline steel. The chemical composition of the steel is (wt%): C ...the steel is mainly composed of polygonal ferrite, acicular ferrite and a number of granular bainites ...
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Cathodic Protection of X100 Pipeline Steel in Simulated Soil Solution
... Figure 3 shows the polarization curves of X100 pipeline steels under three different simulated soil solution environments. It is obvious that the polarization curves have similar shapes and two inflection points a ...
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Molecular Dynamics Simulation of Gas Pipeline Steel Based on LAMMPS Parallel Computing Platform
... Along with the advent of the fourth industrial revolution, the processing capacity of "big data" is highly demanded in industry community. Compared with the traditional computing and programming model based on ...
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The Effect of Non-ionic Surfactant on the Corrosion Inhibition of X52 Pipeline Steel in NaCl solutions
... All electrochemical characterizations were carried out in an electrochemical cell with 4 electrodes arrangement as is shown in Fig. 1. The working electrode (WE) was a rod X52 pipeline steel. A steel ...
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Effect of HCO3- Concentration on the Corrosion Behaviour of X80 Pipeline Steel in Simulated Soil Solution
... the simulated soil solution. The changes in the corrosion potential of the X80 pipeline steel in the different solutions were not obvious and ranged from −800 mV to −700 mV (vs. SCE). By contrast, the ...
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