Results 21 to 30 of about 650 (181)

Effect of Low Water Content and Temperature on Corrosion Behavior of X80 Pipeline Steel in Shenyang Soil Simulated Solution [PDF]

open access: yesCailiao Baohu, 2023
Aiming at exploring the effect of low water content and temperature on the electrochemical corrosion behavior of X80 pipeline steel in Shenyang soil simulated solution,the data of impedance spectrum and polarization curve were measured by weight loss ...
ZHANG Xiaolong
doaj   +1 more source

Stress corrosion mechanism and susceptibility of X80 steel under a disbonded coating in an acidic soil solution

open access: yesJournal of Materials Research and Technology, 2021
The stress corrosion mechanism and susceptibility of X80 steel under a disbonded coating in a simulated acidic soil solution was investigated by a disbonded coating simulation device.
Chao Liu   +5 more
doaj   +1 more source

The Initial Stage Corrosion of X80 Steel in Saturated Sandy Soil Containing Cl- and SO42-

open access: yesInternational Journal of Electrochemical Science, 2021
The corrosion differences of X80 steel are exhibited by electrochemical impedance spectroscopy, polarization curves, and scanning electron microscopy in saturated sandy soil containing different concentrations of NaCl and Na2SO4 under indoor simulation ...
Funan Sun   +5 more
doaj   +1 more source

Measurements by SKPFM and Finite‐Element Modeling of Hydrogen Atom Diffusion and Distribution in Ferrite and Bainite Contained in X80 Steel

open access: yessteel research international, Volume 94, Issue 6, June 2023., 2023
Herein, a new method is developed by combining scanning Kelvin probe force microscopy measurements with finite‐element modeling, studying the hydrogen atom diffusion and distribution in ferrite and bainite phases contained in X80 pipeline steel. The hydrogen atom concentrations in lattice and trap sites in the two phases are determined.
Qing Hu, Yufeng Frank Cheng
wiley   +1 more source

Corrosion Behavior of X70 and X80 Pipeline Steels in Simulated Soil Solution

open access: yesInternational Journal of Electrochemical Science, 2018
Corrosion behavior of X70 and X80 steel in simulated soil solution with AC interference was studied by applied open circuit potential, polarization curve, scanning electron microscope and gravimetry.
Xinhua Wang   +4 more
doaj   +1 more source

Progress and prospects of research and application of X80 pipeline steel and steel pipe in China

open access: yesYou-qi chuyun, 2020
With the rapid development of oil and gas pipeline construction, X80 pipeline steel and steel pipe have been applied on large scale. The research and application history and main progress of X80 high-grade pipeline steel and steel pipe in China were ...
Yaorong FENG   +4 more
doaj   +1 more source

A new analytical method for calculating the strain of oil and gas pipeline under a normal fault dislocation

open access: yesEnergy Science &Engineering, Volume 11, Issue 1, Page 398-409, January 2023., 2023
A new analytic method for the buried pipeline crossing the normal fault based on the shape function. Abstract Oil and gas pipelines that go through an active normal fault often deform largely and cause serious disasters. On the basis of the beam theory of the elastic foundation and assuming a shape function for the deformed pipeline, a new analytical ...
Wen‐jun Hu   +4 more
wiley   +1 more source

Effect of Alternating Stray Current and Stress on the Corrosion Behavior of X80 Pipeline Steel in Soil Simulated Solution

open access: yesInternational Journal of Electrochemical Science, 2018
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 loss method, and was tested and analyzed using the ...
Xinhua Wang   +3 more
doaj   +1 more source

Ductile Fracture Prediction of X80 Pipeline Steel Using Void Growth Model

open access: yesMetals, 2022
In this study, the Void Growth Model (VGM) is employed to predict the ductile fracture of X80 pipeline steel. The X80 pipeline tends to be applied in challenging scenarios, such as extremely deep water and long-distance pipelines, which might cause a ...
Chunjian Feng   +4 more
doaj   +1 more source

Research on Material Selection Method and Brittle Fracture Mechanism of High‐Pressure Pipeline

open access: yesShock and Vibration, Volume 2023, Issue 1, 2023., 2023
Aiming at the problem of the brittle fracture of pressure pipeline, the elastic constraint structure is described by using members and engineering building structures, and the concept of elastic constraint is proposed. Through the stress field analysis of the pressure pipeline under internal pressure, it is found that the pressure pipeline under ...
Yulin Li, Zhihui Li, Guangjian Dong
wiley   +1 more source

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