Steel pipeline
Corrosion of X 70 carbon steel pipeline subject to Sulfate Reducing Bacteria
... Carbon steel API 5L pipeline is often used by local pipeline designers due to its strength, making carbon steel the material of choice in the construction industry ...and pipeline ...
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Thermography analysis on welding defects and internal erosion of carbon steel pipeline
... Emerging faults are typically associated with excessive heat or heat loss. Capturing these heat images and analyzing them allows a quick solution to be taken. Due to that, thermography infrared is widely used nowadays as ...
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Effect of Temperature on the Corrosion Behavior of API X80 Steel Pipeline
... X80 steel significantly decreased as the temperature was increased in such ...carbon steel subjected to sour environment ...X80 steel in H 2 S environment at different temperatures, as shown ...
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Corrosion inhibition of mild steel pipeline using nonionic surfactants
... Mild steel strips of 2cm x 1cm x 0.2cm were abraded with a series of emery paper (grades 320-400-600-800-1200) and then washed with distilled water, cleaned with acetone and then dried. After weighing accurately ...
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Evaluation of the Weld on In-service Gas Pipeline
... of steel gas pipe ...of steel but also precipitation processes ...in steel are affected and thus also the plasticity of ...welded steel pipeline are ferrite, pearlite, martensite and ...
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Experimental Investigation of Pipeline Corrosion in a Polluted Niger Delta River
... carbon steel pipeline immersed in a typical Niger Delta Offshore ...carbon steel coupon was immersed in a sample of water collected from the Niger Delta sea and in seawater polluted by ...
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Corrosion behaviour of welded joints within chloride and chloride/CO[2] environments
... Carbon steel pipeline and vessels are often required to transport water, oil and gas or are submerged in aqueous environments to some extent during ...that steel continues to corrode, but in alkaline ...
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Corrosion Behavior of X80 Pipeline Steel under Coupling Effect of Stress and Stray Current
... high-strength steel pipelines ...and pipeline at the coating defects that could result in DC ...high-strength steel pipeline corrosion is often subjected synergism of stress and stray ...of ...
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Electrochemical Corrosion Study of Buried Pipeline Steel X20 Affected by Stray Current
... The corrosion specimens utilized in this study were all cut from the X20 steel pipeline, the chemical composition of which is given in Table 1. The corrosion specimens are machined into the size of 20 mm×20 ...
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Waterhammer tests in a long PVC pipeline with short steel end sections
... large-scale pipeline apparatus at Deltares, Delft, The Netherlands has been used as a test system providing data for the validation of mathematical and numerical models for predicting the waterhammer response in ...
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Electrochemical Studies on the Corrosion Behavior of API X65 Pipeline Steel in Chloride Solutions
... this steel can be inhibited by up to 92% by using 5mM of 2-butyne-1,4-diol as a corrosion ...of steel pipelines because it contains many corrosive agents such as carbon dioxide, hydrogen sulphides, organic ...
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The Effect of Temperature on the Hydrogen Permeation of Pipeline Steel in Wet Hydrogen Sulfide Environments
... For hydrogen permeation tests, no potential was applied in the hydrogen generating cell. The specimens suffered anodic iron dissolution and cathodic hydrogen evolution process simultaneously. The number of generated ...
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Experimental Data Treatment of the Pipeline Steel Polarization Curve under AC Interference
... The preparation process of the electrodes used in both Case I and II was identical and it was previously described in Ref.[15]. Initially, the steel samples were cut into areas of size 10 × 10 × 3 mm, then they ...
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EIS Evaluation of Pantoprazole as Corrosion Inhibitor for Mild Steel Immersed In HCl 1 M. Effect of [Pantoprazole], Hydrodynamic Conditions, Temperature and Immersion Times
... Mild steel is widely applied in industrial manufacturing, particularly in the automotive and machinery segments, due to its low production costs coupled to excellent mechanical properties and overall integral ...
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Electrochemical Investigations of Simulated Surface Scales Formed on X65 and J55 Pipeline Steel
... The impedance figures for all the samples as a function of immersion time (5-180 min.) were shown in Figs. 7-9. A capacitive behavior was observed at a high frequency range, which could be attributed to a double layer ...
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Assessment of brittle fracture in CO2 transportation pipelines: A hybrid fluid-structure interation model
... of pipeline running brittle fracture in the form of variation of crack length with crack propagation ...the pipeline tendency to long running fractures in the form of the variation of crack length with ...
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Effect of Heat Treatment on Mechanical Property and Electrochemical Corrosion Behavior of X65 Pipeline Steel in 3.5 wt.% NaCl
... In this paper, we investigate the effect of heat treatment on the mechanical property and electrochemical corrosion behavior of pipeline steel under strong acid NaCl solution. Firstly, the microstructures ...
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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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Effects of the Temperature on the Hydrogen Permeation Behaviours of L360NCS Pipeline Steel in 1MPa H2S Environments
... The first important aspect to be outlined is the similarity between the hydrogen permeation curves. All of the hydrogen permeation curves exhibited three stages, consisting of a rising stage, declining stage and steady ...
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The Effect of Non-ionic Surfactant on the Corrosion Inhibition of X52 Pipeline Steel in NaCl solutions
... Nominal chemical composition of X52 pipeline steel is shown in Table 1. Fig. 2 shows a typical microstructure of the API X52 steel used in this study obtained by scanning electron microscopy (SEM). ...
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