Anodic Dissolution of API X70 Pipeline Steel in Arabian

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WC-Co and WC-Co-Cr Coatings for the Protection of API

The influence of microstructure on the protective properties of the corrosion product layer generated on the welded API X70 steel in chloride solution.Corros.Sci.2013,70,170179.[Google Scholar] Sherif,E.S.M.; Seikh,A.H.Anodic dissolution in sulfuric acid pickling solutions of the API pipeline X70 grade steel.Int.J.Electrochem.WC-Co and WC-Co-Cr Coatings for the Protection of API The influence of microstructure on the protective properties of the corrosion product layer generated on the welded API X70 steel in chloride solution.Corros.Sci.2013,70,170179.[Google Scholar] Sherif,E.S.M.; Seikh,A.H.Anodic dissolution in sulfuric acid pickling solutions of the API pipeline X70 grade steel.Int.J.Electrochem.Synergistic effect of halide ions and gum arabic for the the API 5L X70 pipeline steel which is used widely in the oil and gas industry.The working electrodes (API5L X70 pipelinesteel),forelectrochemicalexperiments,werecutinto 3 Anodic Dissolution of API X70 Pipeline Steel in Arabian#215;3 Anodic Dissolution of API X70 Pipeline Steel in Arabian#215;1cm,with the following chemical composition (weight percentage) C 0.12 max,Mn 1.68 max,Si 0.27min,P 0.012 max,S 0.005 max,Cr 0.051 max,Ni

Synergistic effect of halide ions and gum arabic for the

Jul 26,2018 Anodic Dissolution of API X70 Pipeline Steel in Arabian#0183;In previous study,3 with the same inhibitor (gum arabic),but in 1 M hydrochloric acid solution for API 5L X42 pipeline steel,the values of K ads were 10.03,8.7,8.4,and 7.9 L g 1 at 25,35,45,and 65 Anodic Dissolution of API X70 Pipeline Steel in Arabian#176;C,respectively,where the values of the inhibition efficiency were almost good and constant (the maximum value is 93%) with increasing Prof.Dr.Elsayed Mohamed Ahmed Sherif17.El-Sayed M.Sherif,Asiful H.Seikh,Anodic Dissolution in Sulfuric Acid Pickling Solutions of the API Pipeline X70 Grade Steel,International Journal of Electrochemical Science,Vol.10,issue 1,P.209-222 (2015).18.El-Sayed M.Sherif,A.A.Almajid,Electrochemical Corrosion Behavior of API X-70 5L Grade SteelProf.Dr.Elsayed Mohamed Ahmed Sherif17.El-Sayed M.Sherif,Asiful H.Seikh,Anodic Dissolution in Sulfuric Acid Pickling Solutions of the API Pipeline X70 Grade Steel,International Journal of Electrochemical Science,Vol.10,issue 1,P.209-222 (2015).18.El-Sayed M.Sherif,A.A.Almajid,Electrochemical Corrosion Behavior of API X-70 5L Grade Steel

Previous123456NextElectrochemical Corrosion Behavior of X70 Steel in Sand

anodic dissolution and when the solution pH changed from 5.5 to 4.0,SCC susceptibility increases due to the acceleration of cathode reactions.El-Sayed M.Sherif et al also studied the anodic dissolution of API X70 steel in Arabian gulf seawater and found that the general corrosion decreases and pittingPitting potential Article about pitting potential by The Anodic dissolution of API X70 pipeline steel in Arabian Gulf seawater after different exposure intervals For the anodic polarization curves,the CoAW exhibited a typical passive region up to the pitting potential in the pH = 6.75 AS solution compared the other two solutions.Pitting potential Article about pitting potential by The Anodic dissolution of API X70 pipeline steel in Arabian Gulf seawater after different exposure intervals For the anodic polarization curves,the CoAW exhibited a typical passive region up to the pitting potential in the pH = 6.75 AS solution compared the other two solutions.

Pitting corrosion Article about pitting corrosion by The

Anodic dissolution of API X70 pipeline steel in Arabian Gulf seawater after different exposure intervals Figure 8 juxtaposes a photo of pitting corrosion in a steel plate and its visual representation on the basis of shallow internal corrosion sensor data.Pitting corrosion Article about pitting corrosion by The Anodic dissolution of API X70 pipeline steel in Arabian Gulf seawater after different exposure intervals Figure 8 juxtaposes a photo of pitting corrosion in a steel plate and its visual representation on the basis of shallow internal corrosion sensor data.Nanoindentation study of corrosion-induced grainThe alloy under investigation was a high strength pipeline steel (API 5L X70) with average grain size of 5 m.The major alloying elements are Mn (~ 1.75 wt %),Si (~ 0.45 wt %),and C (~ 0.17 wt %).Samples 2 mm in thickness and 18 mm Anodic Dissolution of API X70 Pipeline Steel in Arabian#215; 18 mmin cross-section were machined from the pipe wall.The

Mechanism of FeCO3 Formation on API X70 Pipeline Steel

Many years ago,de Waard and Milliams4 proposed a corrosion mechanism for steel in CO2 solutions involving the direct reduction of carbonic acid as the dominant cathodic mechanism.For the anodic reaction the Bockris mechanism5 for iron dissolution was proposed.Electrochemical evaluation of the corrosion behaviour of May 01,2012 Anodic Dissolution of API X70 Pipeline Steel in Arabian#0183;Many pipeline failures and disastrous fire explosions were attributed to the continuous thinning of pipeline sections caused,especially at low flow rates,by the electrochemical dissolution .Bicarbonate ( HCO 3 - ) plays a critical role in the dissolution reactions at internal and external sides of pipeline structures.Electrochemical characteristic and stress corrosion Jul 15,2019 Anodic Dissolution of API X70 Pipeline Steel in Arabian#0183;The test material used in this study was cut from an API X70 steel plate with a chemical composition (wt%) of 0.073C,0.24 Si,0.002 S,0.003 P,1.43 Mn,0.18 Ni,0.17 Cr,0.05 Nb,and Fe for balance.The microstructure of X70 steel was etched with 3% (volume fraction) Nital solution and observed by a stereomicroscope,as shown in Fig.1.The

Electrochemical Mechanism of Stress Corrosion Cracking of

Electrochemical Mechanism of Stress Corrosion Cracking of API X70 Pipeline Steel under Different AC Frequencies.Electrochemical and SCC behaviour of X70 pipeline steel samples were investigated under various AC frequencies to elucidate the mechanistic aspects of the alternating current (AC)-assisted stress corrosion cracking (SCC) of pipeline steels in simulated seawater solutions.Electrochemical Mechanism of Stress Corrosion Cracking of Electrochemical Mechanism of Stress Corrosion Cracking of API X70 Pipeline Steel under Different AC Frequencies.Electrochemical and SCC behaviour of X70 pipeline steel samples were investigated under various AC frequencies to elucidate the mechanistic aspects of the alternating current (AC)-assisted stress corrosion cracking (SCC) of pipeline steels in simulated seawater solutions.Effect of pH Value on the Electrochemical and Stress Sep 14,2015 Anodic Dissolution of API X70 Pipeline Steel in Arabian#0183;In this work,effects of pH value on the electrochemical and stress corrosion cracking (SCC) behavior of X70 pipeline steel in the dilute bicarbonate solutions were investigated using electrochemical measurements,slow strain rate tensile tests and surface analysis techniques.Decrease of the solution pH from 6.8 to 6.0 promotes the anodic dissolution and cathodic reduction

Effect of Microstructure and Texture Evolution on the

Thermomechanical treatments were used to improve the corrosion resistance of API 5L X70 pipeline steel materials.Successive warm rolling was performed at consistently reduced temperatures; 700 Anodic Dissolution of API X70 Pipeline Steel in Arabian#176;C,600 Anodic Dissolution of API X70 Pipeline Steel in Arabian#176;C,and 500 Anodic Dissolution of API X70 Pipeline Steel in Arabian#176;C.Steel plates comprised of different ferrite grain sizes were produced.However,the finest grain distribution was achieved at 700 Anodic Dissolution of API X70 Pipeline Steel in Arabian#176;C rolling temperature.Effect of Chloride and Sulfate Ions on the SCC of APIhydrogen embrittlement and anodic dissolution.In addition,as previously observed,cyclic load increased susceptibility to SCC initiation,as microcrack formations,in some API 5L classification pipeline steels prior to corrosion exposure [13,14].The microstructural damage also observed on APICited by 5Publish Year 2014Author El-Sayed M.Sherif,Abdulhakim A.AlmajidResearch Article Anodic Dissolution of API X70 Pipeline Anodic Dissolution of API X70 Pipeline Steel in Arabian Gulf Seawater after Different Exposure Intervals El-SayedM.Sherif 1,2 andAbdulhakimA.Almajid 1 Department of Mechanical Engineering,College of Engineering,King Saud University,P.O.Box ,Riyadh ,Saudi Arabia

CiteSeerX Anodic Dissolution in Sulfuric Acid Pickling

The anodic dissolution of API X70 pipeline grade steel was investigated after different exposure periods of time and different temperatures in 1.0 M H2SO4 pickling solutions using optical microscopy,electrochemical impedance spectroscopy (EIS),and potentiodynamic polarization measurements.Author El-Sayed M.Sherif and Abdulhakim A.AlmajidAnodic Dissolution in Sulfuric Acid Pickling Solutions of Anodic Dissolution in Sulfuric Acid Pickling Solutions of the API Pipeline X70 Grade Steel El-Sayed M.Sherif1,2,* and Asiful H.Seikh1 1College of Engineering,King Saud University,P.O.Box - 800,Riyadh 11421,Saudi Arabia 2 Electrochemistry and Corrosion Laboratory,Department of Physical Chemistry,National ResearchAnodic dissolution of API X70 pipeline steel in Arabian Jan 01,2014 Anodic Dissolution of API X70 Pipeline Steel in Arabian#0183;Free Online Library Anodic dissolution of API X70 pipeline steel in Arabian Gulf seawater after different exposure intervals.(Research Article,Report) by Journal of Chemistry; Dissolution (Chemistry) Models Pipe lines Chemical properties Identification and classification Pipelines Sea-water Seawater Steel

Anodic Polarization Behavior of X80 Steel in Na2SO4

The test material was API X80 steel; it was cut from an in-service pipeline system.The chemical constitution in weight percentage (wt%) was 0.07 C,0.21 Si,1.61 Mn,0.12 Ni,0.14 Cu,0.041 Nb,0.012 Ti,0.0025 S,0.0081 P,0.13 Mo,and Fe balance.The specimen was embedded in paraffin wax,exposing the working area of 1 cm 2.Before each Anodic Dissolution of API X70 Pipeline Steel in Arabian The anodic dissolution of API X70 pipeline steel in Arabian Gulf seawater (AGSW) was investigated using open-circuit potential (OCP),electrochemical impedance spectroscopy (EIS),cyclic potentiodynamic polarization (CPP),and current-time measurements.The electrochemical experiments revealed that the X70 pipeline steel suffers both general and pitting corrosion in the AGSW solution.Anodic Dissolution of API X70 Pipeline Steel in Arabian The anodic dissolution of API X70 pipeline steel in Arabian Gulf seawater (AGSW) was investigated using open-circuit potential (OCP),electrochemical impedance spectroscopy (EIS),cyclic

Anodic Dissolution of API X70 Pipeline Steel in Arabian

Anodic Dissolution of API X70 Pipeline Steel in Arabian Gulf Seawater after Different Exposure Intervals Table 2 Parameters obtained from cyclic potentiodynamic polarization curves shown in Figure 6 for X70 steel after 1 h and 20 h immersion in Arabian Gulf seawater.Anodic Dissolution of API X70 Pipeline Steel in Arabian Anodic Dissolution of API X70 Pipeline Steel in Arabian Gulf Seawater after Different Exposure Intervals .By El-Sayed M.Sherif and Abdulhakim A.Almajid.Cite .BibTex; Full citation; Publisher Hindawi Limited.Year 2014.DOI identifier 10.1155/2014/753041.OAI identifier Anodic Dissolution of API X70 Pipeline Steel in Arabian Anodic Dissolution of API X70 Pipeline Steel in Arabian Gulf Seawater after Different Exposure Intervals

Analysis of the corrosion scales formed on API 5L X70 and

ABSTRACT.Longitudinal welded joints samples of X70 and X80 API grade steel pipes were exposed to a deaerated 1% NaCl solution containing CO 2,at temperatures in the range of 25 Anodic Dissolution of API X70 Pipeline Steel in Arabian#186;C to 80 Anodic Dissolution of API X70 Pipeline Steel in Arabian#186;C for 48 hours.Analogous samples were exposed to the adjacent vapour phase.Analysis of the Corrosion Scales Formed on API 5L X70Analysis of the Corrosion Scales Formed on API 5L X70 and X80 Steel Pipe in the Presence of CO.2.All tests were conducted at atmospheric pressure in an acrylic cell containing 1% wt NaCl solution (value required by the research centre which conducted the tests to simulate the sodium chloride content in extraction water).Analysis of the Corrosion Scales Formed on API 5L X70Analysis of the Corrosion Scales Formed on API 5L X70 and X80 Steel Pipe in the Presence of CO.2.All tests were conducted at atmospheric pressure in an acrylic cell containing 1% wt NaCl solution (value required by the research centre which conducted the tests to simulate the sodium chloride content in extraction water).

A Statistical Study on the Effect of Hydrostatic Pressure

Nov 14,2017 Anodic Dissolution of API X70 Pipeline Steel in Arabian#0183;X70 pipeline steel is used for deep sea oil exploration and recovery.Stress corrosion cracking (SCC) and corrosion significantly effect pipeline steel life.Usually,corrosion and SCC of pipeline steel originate from pitting corrosion.Thus,it is necessary to evaluate pitting susceptibility of the X70 pipeline steel in the deep sea environment.12345NextAnodic Dissolution of API X70 Pipeline Steel in Arabian Anodic Dissolution of API X70 Pipeline Steel in Arabian Gulf Seawater after Different Exposure Intervals Table 2 Parameters obtained from cyclic potentiodynamic polarization curves shown in Figure 6 for X70 steel after 1 h and 20 h immersion in Arabian Gulf seawater.(PDF) Electrochemical Corrosion Behavior of API X-70 5L The anodic dissolution of API X70 pipeline steel in Arabian Gulf seawater (AGSW) was investigated using open-circuit potential (OCP),electrochemical impedance spectroscopy (EIS),cyclic

(PDF) Electrochemical Corrosion Behavior of API X-70 5L

The anodic dissolution of API X70 pipeline steel in Arabian Gulf seawater (AGSW) was investigated using open-circuit potential (OCP),electrochemical impedance spectroscopy (EIS),cyclic

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