Results 1 to 10 of about 81 (55)

Stress Triaxial Constraint and Fracture Toughness Properties of X90 Pipeline Steel [PDF]

Metals, 2022
The X90 pipeline steel with high-strength and high-toughness become the most popular pipeline steel. Due to the stress triaxial constraint and fracture toughness properties are the key factors for the stable work of pipeline steel, the research on the ...
Peng Wang, Wenqian Hao, Jiamiao Xie, Fang He, Fenghui Wang, Chunyong Huo   +5 more
doaj   +4 more sources

Effect of Finish Rolling Temperature on the Microstructure and Tensile Properties of Nb–Ti Microalloyed X90 Pipeline Steel [PDF]

Metals, 2016
The relationship between microstructure and tensile properties of an Nb–Ti microalloyed X90 pipeline steel was studied as a function of finish rolling temperature using a Gleeble 3500 simulator, an optical and scanning electron microscope, electron back ...
Bin Guo, Lei Fan, Qian Wang, Zhibin Fu, Qingfeng Wang, Fucheng Zhang   +5 more
doaj   +4 more sources

Stress corrosion cracking behavior of X90 pipeline steel and its weld joint at different applied potentials in near-neutral solutions

Natural Gas Industry B, 2019
X90 pipeline steel is a new generation of pipeline steel developed after X80 and X100 pipeline steels, and it is now a new research hotspot at home. In order to thoroughly study the effect of applied potential on the soil stress corrosion cracking (SCC ...
Jinheng Luo, Sheji Luo, Lifeng Li, Liang Zhang, Gang Wu, Lixia Zhu   +5 more
doaj   +4 more sources

The Role of the Bainitic Packet in Control of Impact Toughness in a Simulated CGHAZ of X90 Pipeline Steel [PDF]

Metals, 2016
X90 pipeline steel was processed with the simulated coarse grain heat affect zone (CGHAZ) thermal cycle with heat input varying from 30 kJ/cm to 60 kJ/cm, the microstructures were investigated by means of optical microscope (OM), scanning electron ...
Bin Guo, Lei Fan, Qian Wang, Zhibin Fu, Qingfeng Wang, Fucheng Zhang   +5 more
doaj   +2 more sources

Synergistic effect of Cl− and HCO3− on the corrosion of X90 pipeline steel in an alkaline soil environment [PDF]

AIP Advances
This study systematically investigates the corrosion behavior of X90 pipeline steel in simulated alkaline soil solution (pH = 9.0) by combining electrochemical techniques and acoustic emission monitoring.
Yuxiang Li, Guang Wang, Chengbin Zhang, Bin Ma, Zhaofeng Yang, Haoran Guo, Jiaxu Miao, Zhenya Duan, Haoran Cheng, Haisheng Bi   +9 more
doaj   +2 more sources

Effects of the Wire Feeding Speed on the Mechanical Properties and Electrochemical Corrosion Behaviors of a Hybrid Laser-MAG Welded X90 Pipeline Steel

International Journal of Electrochemical Science, 2020
This paper studies the welding of X90 pipeline steel with ER100S-G welding wire via laser-metal active gas arc (laser-MAG) hybrid welding and explores the effects of three wire feeding speeds (8.5 mm/s, 9 mm/s, and 9.5 mm/s) on the microstructure ...
Mei Yang, Jingxiang Lu, Yang Li, Jian Tan, Wenhao Zhang, Honglang Yang   +5 more
doaj   +2 more sources

Microstructure and electrochemical corrosion behaviour of API 5L X90 pipeline steel in a simulated soil environment

Journal of Electrochemical Science and Engineering
API 5L X90 pipeline steel, valued for its high strength in oil and gas pipelines, is susceptible to corrosion in aggressive soil environments containing moisture, chlorides, and other corrosive agents.
Mahdi Yeganeh, Mostafa Eskandari, Hasan Mousavi   +2 more
doaj   +3 more sources

Effect of Austenitic State on the Multi-phase Control in X90 Pipeline Steel with High Nb Content

Materials Today: Proceedings, 2015
Abstract This work focuses on the effects of different austenization temperatures on the continuous cooling transformation kinetics and the ultimate microstructures characteristics of 620 MPa grade (X90) pipeline steel. The results indicated that the austenitic state has significant influence on the diffusive transformation with the cooling rate of 1
Wang, X., Li, X., Wu, S., Shang, C., Wang, X.   +4 more
exaly   +2 more sources

Combined acoustic emission and electrochemical methods for analyzing the uniform corrosion behavior of X90 high-grade steel pipelines

Ain Shams Engineering Journal
Long-distance, large-diameter, and high-pressure pipelines represent the future of oil and gas pipeline construction. X90 pipeline steel is expected to become the standard steel due to its high transmission efficiency and lower cost in the future, yet ...
Haisheng Bi, Jiaxu Miao, Chunxun Ma, Chen Zhang, Yuhong Zhang, Yangyang Zhou, Huiyao Li, Haoran Cheng   +7 more
doaj   +2 more sources

Investigation of Hydrogen-induced Cracking Susceptibility of X90 Pipeline Steel Welded Joints

Jixie Gongcheng Xuebao/Chinese Journal of Mechanical Engineering, 2023
exaly   +2 more sources