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research on the corrosion behavior of x70 pipeline steel

research on the corrosion behavior of x70 pipeline steel

research on the corrosion behavior of x70 pipeline steel

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Research on the Corrosion Behavior of X70 Pipeline Steel ...Mar 11, 2019 · In this work, the corrosion behavior of X70 pipeline steel under three different corrosion (including an individual AC corrosion, mixed AC + 150 MPa tensile stress corrosion, coupling effect of AC + a 30 A/m 2 DC interference and 150 MPa tensile stress corrosion) conditions in Dagang soil simulated solution was investigated by COMSOL Multiphysics software simulation, electrochemical tests, scanning electron microscope and other techniques. The results indicated that with the increase in AC ...Cited by: 3Publish Year: 2019Author: Xinhua Wang, Zuquan Wang, Yingchun Chen, Xuting Song, Cheng Xu

Vertical galvanic corrosion of pipeline steel in simulated research on the corrosion behavior of x70 pipeline steel

Dec 01, 2020 · Galvanic corrosion occurs after intrusion of the X70 pipeline steel into the marine thermocline. In the first 10 days, the part of the long X70 pipeline steel located underneath the thermocline was negative, and the other part above it was an anode. On the 10th day, the location of the anode and cathode reversed.The influence of particle size on the longterm research on the corrosion behavior of x70 pipeline steelApr 26, 2017 · In this work, the effect of particle size (0.25, 1.0, 1.5 mm) on the electrochemical corrosion behavior of X70 pipeline steel in a 1.5 wt% NaCl sandy soil corrosion system was investigated by electrochemical techniques including linear polarization resistance, potentiodynamic polarization, electrochemical impedance spectroscopy (EIS) in combination with SEMEDS surface The Effect of Chlorine Ion on Metal Corrosion Behavior research on the corrosion behavior of x70 pipeline steelThe influence of chloride ion on the corrosion of metal under coating with scratch defects was researched by wire beam electrode (WBE) technology and electrochemical impedance spectroscopy (EIS) technology. The results showed that the current of metal surface could be characterized by the WBE technology. In the case of scratches on the coating, the location of the damage always showed an anodic current, and the cathodic reaction took place adjacent to the damaged location. The cathode area surroSee more on hindawi research on the corrosion behavior of x70 pipeline steel

Study on corrosion behavior of X80 steel under stripping research on the corrosion behavior of x70 pipeline steel

Jan 09, 2021 · Chen X, Li SB, Zheng ZS, Xiao JB, Ming NX, Chuan H. Research on microbial corrosion behavior of X70 pipeline steel in Daqing soil environment. J Chin Soc Corrosion Protect. 2020;40(02):17581. Google ScholarStress corrosion cracking behavior of X70 pipe steel in an research on the corrosion behavior of x70 pipeline steelAug 01, 2008 · Abstract. Stress corrosion cracking (SCC) behavior of X70 pipe steel was investigated in an extracted acidic soil solution by slow strain rate test (SSRT), potentiodynamic polarization curve measurements and surface analysis technique. The SCC process and mechanism of X70 steel in the acidic soil solution is mixed-controlled by both anodic dissolution and the hydrogen involvement.Cited by: 195Publish Year: 2008Author: Z.Y. Liu, X.G. Li, C.W. Du, G.L. Zhai, Y.F. ChengResearch on the Corrosion Behavior of X70 Pipeline Steel research on the corrosion behavior of x70 pipeline steelMar 11, 2019 · In this work, the corrosion behavior of X70 pipeline steel under three different corrosion (including an individual AC corrosion, mixed AC + 150 MPa tensile stress corrosion, coupling effect of AC + a 30 A/m 2 DC interference and 150 MPa tensile stress corrosion) conditions in Dagang soil simulated solution was investigated by COMSOL Multiphysics software simulation, electrochemical tests, scanning electron microscope and other techniques. The results indicated that with the increase in AC research on the corrosion behavior of x70 pipeline steelCited by: 3Publish Year: 2019Author: Xinhua Wang, Zuquan Wang, Yingchun Chen, Xuting Song, Cheng Xu

Research Progress on corrosion characteristics of CO2 research on the corrosion behavior of x70 pipeline steel

[23] Sun C, Wang Y, Sun J B, et al. Effect of impurity on the corrosion behavior of X65 steel in water-saturated supercritical CO2 system [J] . J. Supercrit. Fluids, 2016, 116: 70 [24] Sun J B, Sun C, Wang Y. Effects of O2 and SO2 on water chemistry characteristics and corrosion behavior of X70 pipeline steel in supercritical CO2 transport research on the corrosion behavior of x70 pipeline steelResearch Progress of Stress Corrosion Cracking Behaviorof research on the corrosion behavior of x70 pipeline steelResearch Progress of Stress Corrosion Cracking Behaviorof Pipeline Steel Under the Action of Biofilm: XIE Fei 1, WANG Xingfa 1, WANG Dan 1,SUN Dongxu 1,2, QI Jianjing 3: 1 College of Petroleum Engineering, Liaoning Shihua University, Fushun 113001; 2 College of Pipeline and CivilEngineering, China University of Petroleum, Qingdao 266580; 3 Oil & Gas Technology Research Instituteof Research Article Anodic Dissolution of API X70 Pipeline research on the corrosion behavior of x70 pipeline steelResearch Article 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

Materials and Corrosion - Scientific research articles research on the corrosion behavior of x70 pipeline steel

Corrosion behavior of X70 steel under the application of dynamic DC stray current was investigated in simulated soil solution by immersion tests and electrochemical measurements. Experimental results indicated that the corro-sion rate of X70 steel under dynamic DC stray current was strongly influenced by the dynamic period.Growth Behavior of Stress Corrosion Cracks of X80 Pipeline research on the corrosion behavior of x70 pipeline steelThe growth behavior of stress corrosion cracks of X80 pipeline steel in the underground water of acidic soil environments was investigated by a slow-rate-loading crack growth test, electrochemical polarization curves, electrochemical impedance spectroscopy, and scanning electron microscopy.Grade X70 - an overview | ScienceDirect TopicsThe impact of stress corrosion cracking on Heat Affected Zones (HAZs) of pipelines were also studied by some researchers such as Contreras et al. [69] who tested the susceptibility of X52 and X70 welded grades of pipeline to stress corrosion cracking by using strain rate test in H 2

Field corrosion characterization of soil corrosion of X70 research on the corrosion behavior of x70 pipeline steel

The corrosion behavior of X70 pipeline steel buried in red soil environment has been studied. The surface morphology and elemental distribution were determined by scanning electron microscopy (SEM),energy dispersive X-ray spectroscopy (EDS), and X-ray diffraction (XRD).Field corrosion characterization of soil corrosion of X70 research on the corrosion behavior of x70 pipeline steelThe corrosion behavior of X70 pipeline steel buried in red soil environment has been studied. The surface morphology and elemental distribution were dEnhancing the corrosion resistance of API 5L X70 pipeline research on the corrosion behavior of x70 pipeline steelThe properties of API 5L X70 steel was manipulated through thermomechanical processing. Pipeline steel plates were produced using different processing schedules. The final microstructure and texture of processed steels were determined. Also, electrochemical corrosion studies were performed on selected steels in hydrogen producing and non-hydrogen producing electrolyte solutions.

Electrochemical Behavior of API X70 Steel in Hydrogen research on the corrosion behavior of x70 pipeline steel

Abstract. As an attempt to contribute to the understanding of the corrosion process of steel by hydrogen sulfide (H 2 S), the corrosion behavior of an X70 pipeline steel immersed in several H 2 S-containing solutions is analyzed in this work. Linear polarization resistance (LPR) and electrochemical impedance spectroscopy (EIS) techniques were used in order to characterize the corrosion research on the corrosion behavior of x70 pipeline steelEffects of microstructure alteration on corrosion behavior research on the corrosion behavior of x70 pipeline steelAbstract In the present work, a heat treatment process was used to modify corrosion behavior of heat affected zone (HAZ) and weld metal (WM) in welded pipe steel of grade API X70. A one-step austenitizing with two-step quenching and subsequent tempering treatment was performed to alter the microstructure of HAZ and WM.Effects of O2 and SO2 on Water Chemistry Characteristics research on the corrosion behavior of x70 pipeline steelAbstract. The water chemistry characteristics of supercritical CO 2 streams and the corrosion behavior of X70 steel in a supercritical CO 2 system containing O 2 and/or SO 2 impurities were investigated by thermodynamic simulation and corrosion testing. The results show that O 2 concentration in supercritical CO 2 streams contributes to the negligible influence on the water chemistry characteristics,

Effect of alternating current frequency on corrosion research on the corrosion behavior of x70 pipeline steel

The corrosion behavior of X80 pipeline steel in 3.5 wt.% NaCl solution and simulated Dagang soil solution under different alternating current (AC) electrical densities was studied using the weight research on the corrosion behavior of x70 pipeline steelEffect of Temperature on the Corrosion Behavior of API X80 research on the corrosion behavior of x70 pipeline steelFor corrosion behaviour of API X80 pipeline steel and API 5L X70 pipeline steel at different temperatures the reader is referred to Paul et al. and Antunes et al., respectively research on the corrosion behavior of x70 pipeline steel. Collapse of HSLA research on the corrosion behavior of x70 pipeline steelCoupling Effects of pH and Dissolved Oxygen on the research on the corrosion behavior of x70 pipeline steel1. Introduction. The corrosion of buried pipeline steel in the soil seriously threatens the safe operation of the pipeline [1,2,3].Currently, various factors affecting soil corrosion of pipeline steel, including temperature, pH, water content, salinity, microbial and other factors have been extensively studied [4,5,6,7,8,9,10,11], but most studies have focused on the anode process of corrosion.

Corrosion behavior of pipeline steel welds in simulated research on the corrosion behavior of x70 pipeline steel

In this work, the CO 2 corrosion behavior of pipeline steel welds was systematically investigated. This was done by weight loss experiments in which welded samples were immersed in simulated produced water with different CO 2 partial pressures. Scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), grazing incidence X research on the corrosion behavior of x70 pipeline steelCorrosion behavior of API X100 steel in near-neutral pH research on the corrosion behavior of x70 pipeline steelCorrosion behavior of API X100 steel in near-neutral pH bicarbonate environments : experimental and modelling studies @inproceedings{Gadala2017CorrosionBO, title={Corrosion behavior of API X100 steel in near-neutral pH bicarbonate environments : experimental and modelling studies}, author={Ibrahim M. Gadala}, year={2017} }Corrosion behavior of API 5L X60 pipeline steel exposed research on the corrosion behavior of x70 pipeline steelSep 29, 2006 · Results showed that the steel corrosion increases, corrosion current density increases with temperature in the range from 20 to 60 °C. The associated activation energy has been determined. Impedance curves showed that the charge transfer resistance (R t)

Corrosion and Stress Corrosion Cracking Behavior of X70 research on the corrosion behavior of x70 pipeline steel

Apr 01, 2009 · The results found that the electrochemical corrosion of X70 steel in aerated, alkaline solution is an activation-controlled process, and a stable passivity cannot develop on steel. Corrosion rate of the steel increases with the CO2 partial pressure. The enhanced anodic dissolution due to the additional cathodic reaction in the presence of CO2, rather than the film-formation reaction, dominates CO 2 corrosion behavior of X70 pipeline steel in wet gas research on the corrosion behavior of x70 pipeline steelCO 2 corrosion behavior of X70 pipeline steel in wet gas environment December 2011 Beijing Keji Daxue Xuebao/Journal of University of Science and Technology Beijing 33(12):1478-1484A Study on Stress Corrosion Cracking of X70 Pipeline Steel research on the corrosion behavior of x70 pipeline steelNov 08, 2012 · In this study, electrochemical impedance spectroscopy (EIS) simultaneously with the slow strain rate testing were used to investigate the stress corrosion cracking (SCC) behavior of X70 pipeline steel in high pH bicarbonate solution at different applied potentials. Potentiostatic EIS tests were also conducted at certain times to determine the changes associated with the SCC.Cited by: 6Publish Year: 2013Author: A. Shahriari, T. Shahrabi, A. A. Oskuie

(PDF) The Effect of H2S Concentration and Temperature on research on the corrosion behavior of x70 pipeline steel

The hydrogen-induced cracking (HIC) behavior of X70 pipeline steel was studied by means of Linear Polarization Resistance (LPR), hydrogen permeation tests, weight loss and Scanning Electron research on the corrosion behavior of x70 pipeline steel(PDF) Study of Electrochemical Behavior, Hydrogen research on the corrosion behavior of x70 pipeline steelinvestigation, the electrochemical corrosion behavior of X70 pipeline steel wa s studied in sour environment and near neutral soil environment. To assess the mechanism of

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