Results 81 to 90 of about 1,410 (212)

Corrosion Behavior of X80 Pipeline Steel under Coupling Effect of Stress and Stray Current

International Journal of Electrochemical Science, 2014
In this work, the coupling effect of stress and stray current on corrosion of X80 pipeline steel was investigated in soil-simulating solution by open circuit potential (OCP) and corrosion potential test, potentiodynamic polarization measurement and ...
Xinhua Wang, Xinghua Tang, Liwei Wang, Cui Wang, Zhenzhen Guo   +4 more
doaj   +1 more source

Effect of Alternating Current on Corrosion Behavior of X80 Pipeline Steel in Near-Neutral Environment

, 2017
The rapid development of energy, electricity, and transportation industries has created a market for steel pipes; however, buried steel pipelines near high-voltage transmission lines and electrified railways often experience alternating current (AC ...
Du Cuiwei, Wan Hongxia, Song Dongdong, Liu Zhiyong, Li Xiaogang   +4 more
core  

Effect of Applied Potential and Sulfate Reducing Bacteria on Corrosion Behavior of X80 Steel in Dagang Soil Simulated Solution

International Journal of Electrochemical Science, 2020
The corrosion behavior of X80 steel in Dagang soil simulated solution was verified by potentiostatic immersion test and AC impedance test, and the corrosion morphology of metal surface under different applied potential in bacterial solution and sterile ...
Xiaoqing Sun, Fei Xie, Dan Wang, Ji Qi
doaj   +1 more source

Effect of alternating current on stress corrosion cracking behavior and mechanism of X80 pipeline steel in near-neutral solution

, 2017
The influence of alternating current (AC) density on stress corrosion cracking (SCC)behavior and the mechanism of X80 pipeline steel was investigated in NS4 near-neutral solution by slow strain rate tensile tests (SSRT), surface analysis techniques, data
Song, Dongdong, Liu, Zhiyong, Du, Cuiwei, Li, Xiaogang, Zeng, Zhongping, Yang, Xiaojia, Wan, Hongxia   +6 more
core  

Corrosion Behavior of X65 and X80 Pipeline Steels under AC Interference Condition in High pH Solution

International Journal of Electrochemical Science, 2018
The corrosion behavior of X65 and X80 pipeline steels under AC interference in high pH solution was investigated by potentiodynamic polarization curve, open circuit potential, Mott-Schottky curve and immersion test.
Min Zhu, Yongfeng Yuan, Simin Yin, Shaoyi Guo   +3 more
doaj   +1 more source

Effects of Hydrogen on Electrochemical Behaviors of X80 Steel in Simulated Soil Solution

, 2011
X80 pipeline steel specimens were treated by electrochemical hydrogen charging under various current density and charging time. The polarization resistance and corrosion rate of X80 steel were analyzed in Yingtan simulated soil solution under the ...
Yang Xu, Chuan He, Zhi Yong Liu, Xu Chen
core   +1 more source

Structure and Mechanical Properties of Linepipe Steel X80

Teshugang, 2006
The  structure,strength  and  impact  toughness  of  linepipe  steel  X80-0.04C,1.87Mn,0.27Mo,0.06Nb,  0.006V,0.017Ti were tested and compared with linepipe steel X70.The exarination results showed that as structure of the linepipe  steel X80 was ...
张小立, 冯耀荣, 赵文轸, 霍春勇, 庄传晶, 吉玲康, 孟强   +6 more
doaj  

The impact of gravitational sedimentation on the sulfate-reducing bacterium biofilms formation that induced biocorrosion of X80 steel

npj Materials Degradation
In this study, X80 steel square specimens were immersed in a culture of sulfate-reducing bacteria (SRB), Desulfovibrio vulgaris, and the impact of gravity sedimentation on biofilm formation was investigated in three different directions (upward, sideward,
Zhong Li, Yuzhou Chen, Xiaohu Zhang, Xiaolong Li, Junxiang Yang, Zhiyong Liu, Hongchi ma, Daiwei Guo, Yong Li, Jiaxing Cai, Yi Fan, Xiaogang Li, Jike Yang   +12 more
doaj   +1 more source

Tandem gas metal arc pipeline welding [PDF]

, 2007
Energy consumption has grown by 2% per year worldwide over the past ten years. In 2005 worldwide 900,000 barrels of oil and 7.6 billion cubic metre of natural gas were produced daily.
Liratzis, Theocharis
core  

Aluminizing Mechanism and Corrosion Resistance of Pipeline Steel X80 by Combined Pack Cementation Process under Low Temperature

, 2011
In order to improve the corrosion resistance of pipeline steel X80 and maintain its good mechanical properties simultaneously, a low-temperature pack aluminizing process was carried out at 723 K on pipeline steel X80 after a surface mechanical attrition ...
Xiang Hong Lv, Min Huang, Yu Wang
core   +1 more source