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Corrosion Behaviors of Q345R Steel at the Initial Stage in

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The Effect of Chlorine Ion on Metal Corrosion Behavior

The 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 showedSome results are removed in response to a notice of local law requirement.For more information,please see here.Previous123456NextThe Effect of Chlorine Ion on Metal Corrosion Behavior The 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 showedSome results are removed in response to a notice of local law requirement.For more information,please see here.12345NextEffect of Impurities on the Corrosion Behavior of CO2 Corrosion Behaviors of Q345R Steel at the Initial Stage in an Oxygen-Containing Aqueous Environment Experiment and Modeling.Materials 2018,11 (8) ,1462.DOI 10.3390/ma11081462.Dezhi Zeng,Baojun Dong,Shanzhi Shi,Jingjun Pan,Huiyong Yu,Jie Li,Yanyan Ding,Lele Cai.

Some results are removed in response to a notice of local law requirement.For more information,please see here.Reinjection oilfield wastewater treatment using

Feb 01,2020 Corrosion Behaviors of Q345R Steel at the Initial Stage in#0183;Oilfield wastewater is treated and recycled in large amounts to maintain the output pressure of oil and gas during the long-term mining process .The reinjection water from oilfields is recycled into the oil layer from the injection wells,and most of the injection water is returned to the ground,along with the crude oil,through the production wells.Pits formation and stress corrosion cracking behavior of Apr 15,2020 Corrosion Behaviors of Q345R Steel at the Initial Stage in#0183;To explore the corrosion behavior of carbon steel at medium hydrofluoric acid concentration,the corrosion and stress corrosion cracking behavior of Q345R in 40 wt.% hydrofluoric acid are investigated. In addition,on the basis of in-situ observation of the initial stage of Q345R corrosion in hydrofluoric acid (Fig.7(bd)),

Nonlinear diffusion,bonding,and mechanics of the

steel (austenitic) and Q345R carbon steel (ferritic) owing to their balanced mechanical properties,corrosion resistance,and attrac-tive price.However,it is a great ch allenge to perform the accurate modeling of their interfaces.Part of the reason might be the fact that various kinds of elements (the details are shown in Table S1Junying Hu's research works Southwest Petroleum In this work,the corrosion behaviors of Q345R steel at the initial stage in 1 wt.% NaCl solution were investigated using electrochemical techniques.The effects of oxygen concentration Influence of heat treatment on corrosion resistance of Aug 21,2019 Corrosion Behaviors of Q345R Steel at the Initial Stage in#0183;The result of intergranular corrosion test shows that the sum of two stages of 900 Corrosion Behaviors of Q345R Steel at the Initial Stage in#176;C0.5 h heat treatment was the The 316L/Q345R stainless steel clad plate is a widely used one in stainless steel clad plates. Fang X et al 2009 Distribution and corrosion behaviors of the triple junctions in a grain boundary engineered 304 stainless

High-Temperature Oxidation Behaviors of 30Cr25Ni20Si

High temperature oxidation dynamic behaviors and mechanisms for 30Cr25Ni20Si heat-resistant steel were investigated at 800,900 and 1000 Corrosion Behaviors of Q345R Steel at the Initial Stage in#176;C.The oxide layers were characterized by scanning electron microscopy (SEM-EDS),X-ray diffractometer (XRD).The results showed that the oxidation rate of test alloys is increased with increasing the oxidation time.Factors other than Dissolved Oxygen Influencing the May 01,2002 Corrosion Behaviors of Q345R Steel at the Initial Stage in#0183;Corrosion Behaviors of Q345R Steel at the Initial Stage in an Oxygen-Containing Aqueous Environment Experiment and Modeling.Materials 2018 ,11 (8) ,1462.DOI 10.3390/ma11081462.Experimental and Numerical Study on the Influence of In order to study the influence of corrosion rate and shear span ratio on reinforced concrete beam,a numerical analysis method of corroded reinforced concrete beam was put forward.Bond-slip relationship formula between reinforcement and concrete was suggested.A three-dimensional finite element model of corroded reinforced concrete beam was established.Calculation method of ultimate bearing

Enhanced Predictive Modelling of Steel Corrosion in

Jan 28,2019 Corrosion Behaviors of Q345R Steel at the Initial Stage in#0183;The corrosion-induced degradation of reinforced concrete (RC) structures is a well-known issue in the infrastructure community and is still one of the biggest challenging problems affecting structures worldwide (Page 1975; Tuutti 1982; British Cement Association 1997; Bertolini et al.2013) amounting to losses in billions (Koch et al.2001).The current societal,economic and technological Electrochemical Model of Mild Steel Corrosion in a Mixed H (2018) Corrosion Behaviors of Q345R Steel at the Initial Stage in an Oxygen-Containing Aqueous Environment Experiment and Modeling.Materials 11 :8,1462.Online publication date 17-Aug-2018.Effect of liquid flow velocity on corrosion behavior of 20 The paper aims to study the effect of liquid flow velocity on corrosion behavior of 20# steel at initial stage under (CO2/aqueous solution) gasliquid two-phase plug flow conditions.,Weight loss,scanning electron microscopy,energy-dispersive X-ray spectroscopy and XPS methods were used in this study.,The corrosion rate increased with the increasing liquid flow velocity at any different

Effect of Impurities on the Corrosion Behavior of CO2

Corrosion Behaviors of Q345R Steel at the Initial Stage in an Oxygen-Containing Aqueous Environment Experiment and Modeling.Materials 2018,11 (8) ,1462.DOI 10.3390/ma11081462.Dezhi Zeng,Baojun Dong,Shanzhi Shi,Jingjun Pan,Huiyong Yu,Jie Li,Yanyan Ding,Lele Cai.Corrosion of Steel Reinforcement in Concrete- Causes and Initial curing conditions,and; Formation of cracks.Damages to Concrete Due to Corrosion of Steel Reinforcement.The process of corrosion,once set off,results in deterioration and distress of the RC member.The various stages of destruction are as follows Stage 1 Formation of white patchesCorrosion behavior of 20# steel at initial stage under the Mar 13,2019 Corrosion Behaviors of Q345R Steel at the Initial Stage in#0183;The corrosion behavior of 20# steel at initial stage under CO 2 /H 2 O gas-liquid two-phase plug flow conditions was studied through weight loss,SEM,EDS,XPS methods.The corrosion rate results indicated that there was an obvious deceleration transition at the early stage of corrosion

Corrosion behavior of 20# steel at initial stage under the

Corrosion Behaviors of Q345R Steel at the Initial Stage in#0183;The corrosion and degradation of materials,such as pipeline steel,have a strong effect on both the environment and the economy.The quantification of these processes can therefore provide Corrosion behavior and resistance of hot-dip Al-Cr coated The corrosion behavior and resistance of hot-dip Al and Al-Cr coated steel sheets (SS) were investigated via scanning electron microscopy (SEM),energy dispersive X-ray spectrometry (EDX),electron probe micro analysis (EPMA),glow discharge light spectroscopy (GDLS),and X-ray diffraction patterns (XRD).The Al-Cr coated layer was composed of the following three phases.Corrosion behavior about tubing steel in environment with Oct 05,2013 Corrosion Behaviors of Q345R Steel at the Initial Stage in#0183;The corrosion behavior of C100 steel in simulated environments with high H2S and CO2 content was studied through high-temperature and high-pressure autoclave,and the H2S stress corrosion cracking (SSC) resistance of C100 steel was evaluated by SSC tests.Scanning electron microscopy (SEM),transmission electron microscope (TEM) and X-ray diffraction (XRD) technique

Corrosion Behaviors of Q345R Steel at the Initial Stage in

The ingress of oxygen into pressure vessels used in oil gas production and transportation could easily result in serious corrosion.In this work,the corrosion behaviors of Q345R steel at the initial stage in 1 wt.% NaCl solution were investigated using electrochemical techniques.Corrosion Behavior of Hot-dip Galvanized AdvancedA large number of researchers have been devoted to the study of microstructure and corrosion behavior of hot-dip galvanized steel.The better corrosion behavior of galvanized steel depends on the sacrificial zinc layer [12,13],and it is known that failure consists of three stages [14-17] first,solid zincCorrosion Behavior for Casing in Producing Well with Water Corrosion leakage became serious due to cyclic sewage injection and continuous increase in water injection pressure.Corrosion behavior for N80 casing was studied during long-term service,using corrosion reaction kettle and weight loss method.The morphology and composition were characterized with laser confocal microscopy (LCM),scan electron microscopy (SEM) and energy disperse

Cited by 4Publish Year 2020Author Hailong Dai,Shouwen Shi,Can Guo,Xu ChenThe Effect of Oxygen in Sweet Corrosion of Carbon Steel

Corrosion Behaviors of Q345R Steel at the Initial Stage in an Oxygen-Containing Aqueous Environment Experiment and Modeling Longjun Chen ,Junying Hu ,+4 authors Dezhi Zeng Materials Science,MedicineCited by 4Publish Year 2018Author Longjun Chen,Junying Hu,Xiankang Zhong,Qiang Zhang,Yan Zheng,Zhi Zhang,Dezhi ZengCorrosion Behaviors of Q345R Steel at the Initial Stage in The ingress of oxygen into pressure vessels used in oil gas production and transportation could easily result in serious corrosion.In this work,the corrosion behaviors of Q345R steel at the initial stage in 1 wt.% NaCl solution were investigated using electrochemical techniques.The effects of oxygen concentration,temperature and pH on corrosion behaviors were discussed.Cited by 4Publish Year 2018Author Longjun Chen,Junying Hu,Xiankang Zhong,Qiang Zhang,Yan Zheng,Zhi Zhang,Dezhi ZengCorrosion Behaviors of Q345R Steel at the Initial Stage in Corrosion Behaviors of Q345R Steel at the Initial Stage in an Oxygen-Containing Aqueous Environment Experiment and Modeling Article (PDF Available) in Materials 11(8):1462

Cited by 4Publish Year 2018Author Longjun Chen,Junying Hu,Xiankang Zhong,Qiang Zhang,Yan Zheng,Zhi Zhang,Dezhi ZengCorrosion Behaviors of Q345R Steel at the Initial Stage in

Aug 17,2018 Corrosion Behaviors of Q345R Steel at the Initial Stage in#0183;In this work,the corrosion behaviors of Q345R steel at the initial stage in 1 wt.% NaCl solution were investigated using electrochemical techniques.The effects of oxygen concentration,temperature and pH on corrosion behaviors were discussed.Simultaneously,a numerical model based on the mixed potential theory was proposed.Carbon steel corrosion a review of key surfacethe function of corrosion inhibitors,the reactions at t he interfaces between the corrosive electrolyte and a steel surface,particularly at the initial stages of the corrosion process,need to be described.Naturally,these reactions are strongly aected by the nature and properties of the steel surfaces.It is however seen that the majority ofAtmospheric Corrosion Behavior of Mild Steel in the The corrosion behaviour of mild steel in the initial stage was studied in simulated pollutant-free atmosphere with relative humidity (RH) of 65%,75% and 95%.The mass gain has a positive linear relationship with the exposure time.It increases significantly with the increase of relative humidity.

Anti-Corrosion Methods and Materials Vol.67 Iss.4

The purpose of this paper is to investigate the electrochemical corrosion behavior of type 444 stainless steel (SS) in synthetic tap water from 25 Corrosion Behaviors of Q345R Steel at the Initial Stage in#176;C to 80 Corrosion Behaviors of Q345R Steel at the Initial Stage in#176;C,i.e.the pdf (2.1 MB) Effect of liquid flow velocity on corrosion behavior of 20# steel at initial stage under gas-liquid two-phase plug flow conditionA Study on the Initial Atmospheric Corrosion Behaviors of The atmospheric corrosion behaviors of carbon steel have been studied by one-year exposure test in urban,Phnom Penh,and marine,Sihanoukville,atmospheres in Cambodia.The morphology,crystalline phase,and the cross-sections of corrosion product were characterized.A Study on the Initial Atmospheric Corrosion Behaviors of The atmospheric corrosion behaviors of carbon steel have been studied by one-year exposure test in urban,Phnom Penh,and marine,Sihanoukville,atmospheres in Cambodia.The morphology,crystalline phase,and the cross-sections of corrosion product were characterized.

Formation Mechanisms of Iron Oxide and Iron Sulfide

The corrosion behavior of mild steel was first investigated in environments with and without H2S at pH 4.0 and 120 C,showing that magnetite is the dominant corrosion product layer in the initial stage of corrosion,due to a much higher saturation value than iron sulfide (mackinawite).

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