Effect of Nanosized NbC Precipitates on Hydrogen Diffusion in X80 Pipeline Steel. [PDF]
Materials (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 +4 more sources
Relationship between coercivity and stress of X80 pipeline steel
You-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
In Situ Ultrasonic Characterization of Hydrogen Damage Evolution in X80 Pipeline Steel. [PDF]
Materials (Basel)A nondestructive evaluation of the hydrogen damage of materials in a hydrogen environment is important for monitoring the running conditions of various pieces of equipment. In this work, a new thermostatic electrolytic hydrogenation in situ ultrasonic test system (In Situ TEH-UT) was developed.
Chen B +5 more
europepmc +3 more sources
Quantitative Evaluation of Mechanical Properties of Hydrogen Transmission Pipelines Based on Weak Magnetic Detection [PDF]
SensorsWith the rapid development of the hydrogen energy industry, long-distance hydrogen transportation based on natural gas pipelines has emerged as a crucial technique.
Siyang Wang +3 more
doaj +2 more sources
Research on Precipitate Behavior during Holding Process of X80 Pipeline Steel [PDF]
MATEC Web of Conferences, 2016 PTT (Precipitate-Temperature-Time) curve of X80 pipeline steel was obtained by strain relaxation method. The evolution of precipitate particle size during holding process was simulated combined with kinetic calculation, and observed using TEM in the ...
Niu Tao +6 more
doaj +2 more sources
Effect of applied potentials on the corrosion of X80 pipeline steel in simulated coastal soil solution [PDF]
Journal of Hebei University of Science and Technology, 2023 In order to explore the corrosion mechanism of dual-phase X80 pipeline steel in the coastal soil simulation solution environment, the stress corrosion and electrochemical corrosion behavior of dual-phase X80 pipeline steel under different applied ...
Jing MA +5 more
doaj +1 more source
Study on Stress Corrosion Behavior of X100 and X80 Pipeline Steels with Applied Potential [PDF]
Cailiao Baohu, 2023 Taking X100 and X80 pipeline steels as research objects，their stress-strain curves in air and under different applied potentials were obtained through the slow strain rate tensile test (SSRT).The stress corrosion sensitivity analysis showed that ...
HUANG Tao, GUO Jie, WEI Kai-hua, CHEN Jia-qi, XUE Hui-yong, WANG Xiao-feng
doaj +1 more source
Progress of research on key influencing factors of stress corrosion cracking of X80 buried pipeline
You-qi chuyun, 2021 With the rapid development of the construction of high-pressure, large-diameter and long-distance X80 pipelines in China, Stress Corrosion Cracking (SCC) has become an important factor threatening the safe operation of pipelines.
Cheng SUN +7 more
doaj +1 more source
You-qi chuyun, 2023 With the increasingly imperious demands for energy transformation and development of hydrogen energy utilization in China,X80 high-strength pipeline steel will face the risks of operating in a hydrogen environment. As the in-service pipeline is subjected
GOU Jinxin +5 more
doaj +1 more source
Effect of Low Water Content and Temperature on Corrosion Behavior of X80 Pipeline Steel in Shenyang Soil Simulated Solution [PDF]
Cailiao 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