Results 11 to 20 of about 1,080 (202)

Effect of Nanosized NbC Precipitates on Hydrogen Diffusion in X80 Pipeline Steel. [PDF]

open access: yesMaterials (Basel), 2017
In this paper, the effects of dispersed 3~10 nm NbC precipitates on hydrogen diffusion in X80 pipeline steel were investigated by means of high resolution transmission electron microscopy (HRTEM), electrochemical hydrogen permeation, and thermal desorption spectroscopy (TDS).
Cui Q, Wu J, Xie D, Wu X, Huang Y, Li X.
europepmc   +5 more sources

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   +2 more sources

Effect of Glutaraldehyde on Corrosion of X80 Pipeline Steel [PDF]

open access: yesCoatings, 2021
Glutaraldehyde (GA) is widely employed as a biocide to control microbiologically influenced corrosion in oil fields and industrial water treatment. It might be corrosive to metal. In this study, the effect of glutaraldehyde on the corrosion behavior of X80 pipeline steel was investigated using electrochemical measurement, weight-loss tests and scanning
Feng Tian, Lin Pan
openaire   +2 more sources

Influence of operation condition on in-service welding temperature field of X80 natural gas pipeline

open access: yesYou-qi chuyun, 2022
In order to study the influence law of natural gas transportation parameters on temperature field in the heat affected zone of in-service welding in X80 natural gas pipeline, the X80 natural gas pipeline with a diameter of 1 422 mm and a wall thickness ...
Wangyou ZHU
doaj   +2 more sources

Research of ultra-fine bainite X80 pipeline plate for gas compressor station

open access: yesMATEC Web of Conferences, 2018
This paper reports on the research of low temperature (-51°C) X80 pipeline plate used for gas compressor station. In order to satisfy the performance requirements of low temperature X80 pipeline plate, an optimized rolling and cooling process was ...
Li Shaopo, Ding Wenhua, Zhang Hai
doaj   +3 more sources

Design and manufacturing key technologies for low temperature monolithic insulation joints on the OD 1 422 mm X80 pipeline

open access: yesYou-qi chuyun, 2020
In the China–Russia Eastern Gas Pipeline Project, large diameter (OD 1 422 mm), high pressure (12 MPa) and high grade steel (X80) pipelines were used to transport huge amounts of natural gas, so as to meet the needs of energy strategy.
Yunlan YANG   +7 more
doaj   +2 more sources

Stress corrosion cracking behavior of X80 pipeline steel under alternating current, Desulfovibrio desulfurican and cathodic protection potential

open access: yesJournal of Materials Research and Technology, 2023
The stress corrosion cracking (SCC) behavior of X80 pipeline steel under Desulfovibrio desulfurican (D. desulfurican), alternating current (AC) and cathodic protection (CP) was studied by the constant load tests and slow strain rate tensile (SSRT) test ...
Qi Fu   +5 more
doaj   +2 more sources

Relationship between coercivity and stress of X80 pipeline steel

open access: yesYou-qi chuyun, 2022
The operation environment along the long-distance oil and gas pipelines is complex, and the abnormal external load during pipeline operation may lead to local stress concentration, which will increase the operation risk of pipeline.The coercivity-based ...
CHENG Fanju   +5 more
doaj   +2 more sources

Numerical simulation on strain capacity of welding joint of X80 pipeline with root welding crack

open access: yesYou-qi chuyun, 2022
Automatic welding technology is widely used in the field welding of large-diameter and high-grade steel pipelines in China. Welding defects such as misalignment and cracks caused by various factors have seriously affected the deformation and bearing ...
Feining YI   +6 more
doaj   +2 more sources

Effect of Microstructural Constituents on Hydrogen Embrittlement Resistance of API X60, X70, and X80 Pipeline Steels [PDF]

open access: yesArchives of Metallurgy and Materials
This study describes how microstructural constituents affected the hydrogen embrittlement resistance of high-strength pipeline steels. The American Petroleum Institute (API) X60, X70, and X80 pipeline steels demonstrated complicated microstructure ...
Seung-Hyeok Shin   +3 more
doaj   +7 more sources

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