Results 11 to 20 of about 1,410 (212)

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

You-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, Lingkang JI, Weiwei LI, Yinglai LIU, Chunyong HUO   +4 more
doaj   +2 more sources

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, Zengli Peng, Xin Li, Shiliu Bao, Ximin Jiang   +4 more
doaj   +2 more sources

Characteristic and Mechanistic Investigation of Stress-Assisted Microbiologically Influenced Corrosion of X80 Steel in Near-Neutral Solutions. [PDF]

Materials (Basel), 2022
The behavior and mechanisms of the stress-assisted microbiologically influenced corrosion (MIC) of X80 pipeline steel induced by sulfate-reducing bacteria (SRB) were investigated using focused ion beam-scanning electron microscopy (FIB).
Guo H, Zhong R, Liu B, Yang J, Liu Z, Du C, Li X.   +6 more
europepmc   +2 more sources

Electrochemical and Mechanical Properties of Cathodically Protected X80 Steel in Different Temperature Soil. [PDF]

Materials (Basel), 2022
For the application of X80 pipelines in Northeast China, it is important to establish the correct cathodic protection (CP) potential. To achieve this, potentiodynamic polarization; electrochemical impedance spectroscopy (EIS); a slow strain rate test ...
Liu W, Meng Y, Zhao J, Wen W, Gong M, Wu S, Li S, Yu M, Liu J.   +8 more
europepmc   +2 more sources

Analysis of the Long-Term Corrosion Behavior of X80 Pipeline Steel in Acidic Red Soil Using Electrical Resistance Test Technique [PDF]

Advances in Materials Science and Engineering, 2015
The long-term corrosion rate of X80 steel in an acidic red soil was monitored in situ by using a precise electrical resistance (ER) test system. The corrosion characteristics of X80 steel were examined via SEM, EDS, and XRD.
Shuaixing Wang, Daoxin Liu, Nan Du, Qing Zhao, Jinhua Xiao   +4 more
doaj   +2 more sources

Stress corrosion behavior of X80 pipeline steel in the natural seawater with different dissolved oxygen contents

Fracture and Structural Integrity, 2019
Stress corrosion slow strain rate tensile tests of the X80 steel in the natural seawater are carried out to study the effect of dissolved oxygen (DO) on the sensitivity of stress corrosion.
Zhong-ying Han, Xiao-guang Huang College of Pipeline and Civil Engineering, China University of Petroleum (East China), Qingdao, 266580, China.   +1 more
doaj   +3 more sources

Electrochemical Investigation of Corrosion of X80 Steel under Elastic and Plastic Tensile Stress in CO₂ Environment

Metals, 2018
An investigation into the electrochemical corrosion behavior of X80 pipeline steel under different elastic and plastic tensile stress in a CO2-saturated NaCl solution has been carried out by using open-circuit potential, potentiodynamic polarization ...
Wei Wu, Hailong Yin, Hao Zhang, Jia Kang, Yun Li, Yong Dan   +5 more
doaj   +2 more sources

Effect of SRB and Applied Potential on Stress Corrosion Behavior of X80 Steel in High-pH Soil Simulated Solution. [PDF]

Materials (Basel), 2021
The effect of SRB and applied potential on the stress corrosion sensitivity of X80 pipeline steel was analyzed in high-pH soil simulated solution under different conditions using a slow strain rate tensile test, electrochemical test, and electronic ...
Xu C, Gao H, Zhu W, Wang W, Sun C, Chen Y.   +5 more
europepmc   +2 more sources

Quantitative Study on Hydrogen Concentration–Hydrogen Embrittlement Sensitivity of X80 Pipeline Steel Based on Hydrogen Permeation Kinetics

Metals
The hydrogen concentration in steel is directly related to the hydrogen embrittlement (HE) sensitivity of the steel. This study combined electrochemical hydrogen charging, the slow strain rate test (SSRT), and hydrogen permeation experiments to ...
Rundong Zhang, Songyuan Ai, Mujun Long, Lihua Wan, Yifan Li, Danbin Jia, Huamei Duan, Dengfu Chen   +7 more
doaj   +2 more sources

Research on Precipitate Behavior during Holding Process of X80 Pipeline Steel

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, An Chenggang, Jiang Yongwen, Wu Xinlang, Zhang Caixia, Yu Chen, Dai Xiaoli   +6 more
doaj   +3 more sources