Results 21 to 30 of about 646 (183)
Corrosion Behavior of X70 and X80 Pipeline Steels in Simulated Soil Solution
International 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
Ductile Fracture Prediction of X80 Pipeline Steel Using Void Growth Model
Metals, 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
Shock 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
Study on Improving the Performance of X80 Pipeline Steel
DEStech Transactions on Engineering and Technology Research, 2017 This paper analyzes the methods of improving the performance of X80 pipeline steel. In the process of manufacturing piping, the right temperature of coiling the steel can improve the comprehensive mechanical properties of X80 pipeline steel. The proper cooling rate can make heat affected zone get the good performance.
Yan Liu +3 more
openaire +2 more sources
Precipitates in Nb and Nb–V Microalloyed X80 Pipeline Steel [PDF]
Microscopy and Microanalysis, 2013 AbstractPrecipitates in two X80 pipeline steels were studied by transmission electron microscopy equipped with an energy filtering system. The steels are microalloyed with niobium and niobium–vanadium (Nb–V), respectively, and produced by continuous hot rolling.
Zhongyi, Li +3 more
openaire +2 more sources
The effect of hydrogen on the fracture toughness of friction‐stir welded API 5L X70 pipeline steels
Fatigue &Fracture of Engineering Materials &Structures, Volume 45, Issue 10, Page 3009-3024, October 2022., 2022 Abstract The hydrogen embrittlement (HE) leads to severe steel degradation of mechanical properties. The hydrogen atoms diffuse into the steel and get positioned into reversible and irreversible trap sites. The pipe to transport oil and gas needs to be welded to construct long‐distance pipeline projects; thus, friction‐stir welding (FSW) has proven an ...
Joseane M. Giarola +5 more
wiley +1 more source
International Journal of Electrochemical Science, 2018 An orthogonal experimental group of saline soils with soluble salt anions (Cl-, SO42-and HCO3-) was designed by orthogonal assistant and IBM SPSS statistics 21 software.
Fuli Ma +3 more
doaj +1 more source
Influence of Temperature on the Corrosion Behavior of X80 Steel in an Acidic Soil Environment
International Journal of Electrochemical Science, 2020 The influence of temperature on the corrosion behavior of X80 steel in an acidic soil environment was determined using electrochemical and surface analysis methods.
Yuanhui Wu, Suxing Luo, Qingsong Mou
doaj +1 more source
Simulation analysis of X80 pipeline steel welding
Metalurgija, 2023 In order to improve the quality of welded joints and increase the service life of pipelines, ABAQUS finite element software was used to simulate the temperature field of 18,4 mm thick X80 pipeline steel in multi-layer and multi pass welding. The peak temperature of different passes was compared, and the change trend of temperature field in the welding ...
Li, M. M. +4 more
openaire +2 more sources
A study on corrosion of X80 steel in a simulated tidal zone
Journal of Materials Research and Technology, 2021 In the paper, an experimental technique simulating tidal rhythm for studying the tidal zone corrosion of metals was developed and the tidal zone corrosion of X80 pipeline steel was studied via the technique using weight loss, electrochemical measurement, X-ray diffraction (XRD), and scanning electron microscope (SEM).
Xiaobao Zhou +5 more
openaire +2 more sources