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hydrogen permeation and corrosion behaviour of high

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The hydrogen permeation and hydrogen-induced cracking

DOI 10.1016/0010-938X(87)90100-4 Corpus ID 137133799.The hydrogen permeation and hydrogen-induced cracking behaviour of linepipe in dynamic full scale tests @article{Hyodo1987TheHP,title={The hydrogen permeation and hydrogen-induced cracking behaviour of linepipe in dynamic full scale tests},author={T.Hyodo and M.Iino and A.Ikeda and M.Kimura and M.Shimizu},journal={Corrosion Stress Corrosion Cracking Behavior of 2024 and 7075 High The stress corrosion cracking (SCC) of high-strength 2024-T351 and 7075-T651 aluminum alloys in simulated marine atmospheric medium containing HSO3 was investigated.The results showed that the presence of HSO3 could significantly accelerate the corrosion process of 2024-T351 and 7075-T651 high-strength aluminum alloy.This process was attributed to the enhanced anodic dissolution and Raising our hydrogen research to the next level OcasThe existing hydrogen permeation equipment is used to determine the effective diffusivity,permeation rate and apparent solubility of hydrogen in metals.A new set-up has been installed in the sour lab ,allowing to introduce hydrogen by H2S containing solutions,identical to the ones used for NACE sulfide stress cracking tests.

ROLES OF H2S IN THE BEHAVIOR OF ENGINEERING

ROLES OF HzS IN THE BEHAVIOR OF ENGINEERING ALLOYS A REVIEW OF LITERATURE AND EXPERIENCE R.D.Kane and M.S.Cayard lnterCorr - CL1 International,Inc.14503 Bammel-N.Houston,Suite 300 Houston,Texas 77014 USA ABSTRACT Hydrogen sulfide (H$) has long been associated with the cause of corrosion damage and sulfideROLES OF H2S IN THE BEHAVIOR OF ENGINEERINGROLES OF HzS IN THE BEHAVIOR OF ENGINEERING ALLOYS A REVIEW OF LITERATURE AND EXPERIENCE R.D.Kane and M.S.Cayard lnterCorr - CL1 International,Inc.14503 Bammel-N.Houston,Suite 300 Houston,Texas 77014 USA ABSTRACT Hydrogen sulfide (H$) has long been associated with the cause of corrosion damage and sulfidePrevious123456NextHydrogen permeation and corrosion behavior of high Download Citation Hydrogen permeation and corrosion behavior of high strength steel MCM 430 in cyclic wetdry SO 2 environment Hydrogen permeation caused by corrosion under a

Investigation of Hydrogen Embrittlement of High Strength

Mar 26,2017 hydrogen permeation and corrosion behaviour of high#0183;This paper focuses on the hydrogen embrittlement behaviors of API X70,X80 and X90 high strength pipeline steel under cathodic protection in soil simulation conditions.The uptake and diffusion of hydrogen in the steels under different cathodic protection levels were analyzed by hydrogen permeation test and hydrogen content measurement.Hydrogen permeation in dual phase (DP) and quenchedAbstract Hydrogen permeation through DP and QP advanced high strength steels (AHSS) was investigated (i) for cathodic charging at different potentials in 0.1 M NaOH,(ii) for immersion in 3wt% NaCl solution at the free potential simulating the corrosion of steel in service and at zinc potential forHydrogen permeation behavior and corrosion monitoringAnd a clear linear correlation exists between the quantities of hydrogen permeated through the 16Mn steel and the weight loss.Based on the linear correlation,we monitored the corrosion rate by monitoring the hydrogen permeation current by a sensor outside.Good coherences were shown between results in laboratory and outside.

Hydrogen permeation and corrosion behavior of high

Jan 01,2004 hydrogen permeation and corrosion behaviour of high#0183;Hydrogen permeation caused by corrosion under a cyclic wet (2 h)dry (10 h) SO 2 condition was investigated for a high strength steel of MCM 430 by using an electrochemical technique in addition to the corrosion behavior obtained from weight loss measurement and the determination of corrosion products by using X-ray diffraction method.The hydrogen content converted from hydrogenHydrogen Permeation of Carbon Steel - CORROSIONAbstract.The hydrogen permeation behavior of carbon steel (CS) was investigated electrochemically in weak alkaline solutions containing hydrogen sulfide (H 2 S) with various cyanide ion (CN ) concentrations under open-circuit conditions.Anodic and cathodic polarization behaviors of CS also were investigated under the same environmental conditions.Hydrogen Permeation and Electrochemical CorrosionJul 30,2011 hydrogen permeation and corrosion behaviour of high#0183;electron microscopy.The hydrogen permeation and electrochemical corrosion behavior were investigated by various electrochemical measurements and analysis.It was found that there is the smallest hydrogen permeation rate,but the largest hydrogen trapping density at heat-affected zone,while the base steel has the lowest hydrogen trapping.

Hydrogen Permeation and Electrochemical Corrosion

Jul 30,2011 hydrogen permeation and corrosion behaviour of high#0183;electron microscopy.The hydrogen permeation and electrochemical corrosion behavior were investigated by various electrochemical measurements and analysis.It was found that there is the smallest hydrogen permeation rate,but the largest hydrogen trapping density at heat-affected zone,while the base steel has the lowest hydrogen trapping.Hydrogen Permeation and Electrochemical Corrosion Behavior Apr 18,2012 hydrogen permeation and corrosion behaviour of high#0183;The microstructure of the weld zone results in different hydrogen permeation behavior.There is the smallest hydrogen permeation rate and the highest hydrogen trapping density at HAZ,while the base X80 steel has the lowest hydrogen trapping density.Hydrogen-charging enhances corrosion of the steel,especially localized corrosion occurring at HAZ.Hydrogen Permeation and Corrosion Fatigue Crack Growth The corrosion fatigue crack growth rate increased with partial pressure of H 2 S and correlated with the steady-state flux of hydrogen permeation during corrosion in the same solutions.

Hydrogen Permeation and Corrosion Fatigue Crack Growth

Corrosion fatigue affects the integrity of carbon steel pipes used in deepwater oil extraction.Corrosion fatigue can be aggravated by the presence of sour (i.e.,hydrogen sulfide [H 2 S]-containing) brines,which cause a decrease in fatigue life with respect to air performance.13 Therefore,testing of materials for this application usually requires the use of H 2 S.Thiosulfate (S 2 O 3 2 Hydrogen Permeation Behavior of 95S3Cr Casing withThis paper discusses the amount of hydrogen permeation and corrosion rate of 95S3Cr casing in different time,and analyzes its morphology before and after corrosion.We conclude that hydrogen permeation increases with increases of corrosion time,and increasing speed is faster in the initial stages then slower.Corrosion rate is quickly dropped at the beginning and then gradually increased.Corrosion productsEffects of the Temperature on the Hydrogen Permeation The peak values of hydrogen permeation curves increased with increasing temperature,but the total hydrogen permeation flux before the steady stage decreased with increasing temperature.The characteristics of the total hydrogen permeation flux are similar to that of the average corrosion rates.

Effects of the Temperature on the Hydrogen Permeation

Abstract.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 of L360NCS pipeline steel at different temperatures on the hydrogen permeation and the corrosion rate in high pressure H2S environments.Effect of interaction between corrosion film and H2S/CO2 The hydrogen permeation curves have the rising,falling then stable stage.When at a total pressure of 1 MPa,as the H 2 S partial pressure decreases,the hydrogen permeation promoting effect weakens,but the peak current of hydrogen permeation gradually increases.The main reason is that the role of corrosion products has changed from promoting hydrogen permeation to hindering hydrogenEffect of heat treatment on hydrogen permeation behaviour Effect of heat treatment on the hydrogen permeation behaviour of AISI 4135 steel was studied by electrochemical method under simulated splash zone conditions.The hydrogen permeation current reached maximum at dry stage and the amount of hydrogen permeated showing a maximum in

Effect of bainite in microstructure on hydrogen diffusion

Firstly,hydrogen diffusion and trapping behaviors of the steels are studied by utilizing the electrochemical permeation technique.For fundamental analysis on the experimental data,a variety of diffusion parameters were determined by curve-fitting with a theoretical diffusion equation based on numerical finite difference method (FDM).Effect of Surface Conditions and Specimen Composition on 3.1.Hydrogen Permeation Behavior of Coated Steels.Figure 5 shows the changes in hydrogen permeation current and RH of (a) SZn and (b) SZnAl specimens during the wet and dry corrosion tests.There are periodic changes of the hydrogen permeation currents following the cyclic changes of RH with both specimens.Effect of Surface Conditions and Relative Humidity on At high RH,a remaining thin solution layer was suggested,and the hydrogen permeation behavior without any thin solution layer during the desiccated period in the corrosion tests was investigated.To examine the effect of the size of the scratch (size of cathodic reaction area) on hydrogen permeation behavior,specimens with different scratch sizes were also investigated.

Effect of Heat Treatment Conditions on Corrosion and

Corrosion Science and Technology.Abstract The purpose of this study was to examine the influence of conditions for quenching and/or tempering on the corrosion and hydrogen diffusion behavior of ultra-strong automotive steel in terms of the localized plastic strain related to the dislocation density,and the precipitation of iron carbide.Effect of H2S/CO2 Corrosion Scale On Hydrogen Permeation Mar 13,2011 hydrogen permeation and corrosion behaviour of high#0183;At this condition,since the electrochemical corrosion under H2S/CO2 coexistence conditions is very serious,the formation of corrosion product scale on the steel surface might significantly effect on the hydrogen permeation and the occurrence of HIC.In this paper,electrochemical hydrogen permeation method is employed to investigate the effects of H2S/CO2 corrosion scales onEffect of H2S content on corrosion behavior and hydrogen The hydrogen permeation behavior of API 5L X70 steel at different H2S contents is mainly affected by the concentration of H2S molecules in the solution,adsorbed HS- and the corrosion product

Corrosion fatigue behavior of high-strength steel

Aug 01,2015 hydrogen permeation and corrosion behaviour of high#0183;We tested the corrosion fatigue of high-strength steel wire in four different solutions.The purpose of this was to compare the effects of chloride and iron ion concentration on the corrosion fatigue behavior of the high-strength steel wire,which allowed us to simulate the different failure modes.Corrosion and Hydrogen Permeation in H2S EnvironmentsBoth corrosion and hydrogen uptake tests are conducted using a classic two-chamber hydrogen permeation cell.At the entry side,electrochemical impedance spectroscopy (EIS) is used to evaluate the corrosion behavior of the iron membrane in the H 2 S medium.At the exit side,hydrogen permeation is measured by anodic extraction.Cited by 66Publish Year 2004Author Rokuro Nishimura,Daisuke Shiraishi,Yasuaki MaedaStudy of Electrochemical Behavior,Hydrogen PermeationA brief overview is given of the corrosion and hydrogen diffusion behaviors of high strength pipe steel in sour environment.Firstly,hydrogen adsorption and diffusion mechanism of the pipe steel

Cited by 3Publish Year 2018Author Martien Duvall Deffo Ayagou,C.Mendibide,Claude Duret-Thual,Jean Kittel,Khawla Belkhadiri,Thi TElectrochemical corrosion,hydrogen permeation and stress

Electrochemical corrosion,hydrogen permeation and stress corrosion cracking behavior of E690 steel in thiosulfate-containing artificial seawater. (10 4 M) is mainly dominated by hydrogen embrittlement because of the thiosulfate-induced promotion of hydrogen permeation.At highCited by 22Publish Year 2013Author H.B.Xue,Y.F.ChengCorrosion and Hydrogen Permeation in H2S EnvironmentsBoth corrosion and hydrogen uptake tests are conducted using a classic two-chamber hydrogen permeation cell.At the entry side,electrochemical impedance spectroscopy (EIS) is used to evaluate the corrosion behavior of the iron membrane in the H 2 S medium.At the exit side,hydrogen permeation is measured by anodic extraction.A Review of Corrosion and Hydrogen Diffusionthe steel surface on corrosion and subsequent hydrogen diffusion behaviors is discussed.Moreover,the hydrogen diffusion behavior of the pipe steel under tensile stress in both elastic and plastic ranges is explored based on a number of hydrogen permeation test results.With the experimental demonstrations,numerous theoretical

12345NextHydrogen permeation behavior and corrosion monitoring

And a clear linear correlation exists between the quantities of hydrogen permeated through the 16Mn steel and the weight loss.Based on the linear correlation,we monitored the corrosion rate by monitoring the hydrogen permeation current by a sensor outside.Good coherences were shown between results in laboratory and outside.(PDF) The Effect of the Partial Pressure of H 2 S and CO 2 The effect of CO2 on the hydrogen permeation behaviour of carbon steel was investigated in a high temperature and high pressure hydrogen permeation device,through hydrogen permeation

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