Results 21 to 30 of about 653 (162)

Precipitates in Nb and Nb–V Microalloyed X80 Pipeline Steel [PDF]

open access: yesMicroscopy 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

Study of the Initial Corrosion of X80 Steel in a Saturated Saline Soil Co-Contaminated with Cl-, SO42-and HCO3-

open access: yesInternational 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

open access: yesInternational 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

Corrosion Behavior of X80 Pipeline Steel under Thin Electrolyte Layer of Acidic Soil Simulated Solution

open access: yesInternational Journal of Electrochemical Science, 2016
Corrosion behavior of X80 steel under thin electrolyte layer (TEL) of acidic soil simulated solution were studied by utilizing polarization curves, EIS, SEM and XRD.
Shuaixing Wang   +4 more
doaj   +1 more source

Simulation analysis of X80 pipeline steel welding

open access: yesMetalurgija, 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

Study on Repairing and Reinforcing Effect of Steel Epoxy Sleeve on Girth Weld Defects

open access: yesShiyou jixie, 2022
In order to study the repairing and reinforcing effect of steel epoxy sleeve on girth weld defects of X80 pipeline,ANSYS is applied to establish the nonlinear finite element models of X80 pipeline with girth weld defects and pipeline reinforced by steel ...
Yu Dongliang   +4 more
doaj  

Effect of Temperature on the Corrosion Behavior of API X80 Steel Pipeline

open access: yesInternational Journal of Electrochemical Science, 2015
The electrochemical behavior of API X80 pipeline steel in 3.5% of NaCl solution containing different concentrations of H2S at different temperatures was investigated.
C. Okonkwo Paul   +2 more
doaj   +1 more source

Effect of HCO3− Concentration on the Corrosion Behaviour of X80 Pipeline Steel in Simulated Soil Solution

open access: yesInternational Journal of Electrochemical Science, 2017
In buried pipeline steel, soil environmental factors cause corrosion, which greatly affects the safe operation of pipe networks. The effects of HCO3− on the corrosion behaviour of X80 pipeline steel in Liaohe Oilfield simulated soil solution was ...
Fei Xie   +4 more
doaj   +1 more source

A study on corrosion of X80 steel in a simulated tidal zone

open access: yesJournal 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

Hydrogen embrittlement behavior of typical hydrogen-blended natural gas pipeline steel

open access: yesYou-qi chuyun, 2022
Currently, it is most economical to transport hydrogen with the existing natural gas pipelines by blending it into the natural gas among the storage and transportation technologies of hydrogen energy, and thus the transportation technology of hydrogen ...
Yu-xing LI   +8 more
doaj   +1 more source

Home - About - Disclaimer - Privacy