Results 61 to 70 of about 538 (176)

Effects of pH on the Electrochemical Behavior and Stress Corrosion Cracking of X80 Pipeline Steel in Simulated Alkaline Soil Solution

International Journal of Electrochemical Science, 2019
The electrochemical behavior of X80 pipeline steel in alkaline soil solution with different pH value was studied by mean of potentiodynamic polarization and electrochemical impedance spectroscopy (EIS).
Ping Liang, Yier Guo, Hua Qin, Yanhua Shi, Fei Li, Lan Jin, Zheng Fang   +6 more
doaj   +1 more source

Synthetically Modified Tara and Oak Gall Nut Tannin‐Based Corrosion Inhibitors for Combating the Corrosive Influence of Acidithiobacillus thiooxidans on Mild Steel

International Journal of Corrosion, Volume 2024, Issue 1, 2024.
Natural tara and oak gall nut tannins, which lack corrosion inhibitive properties, were modified using gum arabic and tested against microbial corrosion induced by Acidithiobacillus thiooxidans under isothermal condition (28°C). Mild steel coated with the modified tannins was exposed to the causative under aerobic and anaerobic conditions. Based on the
Samuel Eshorame Sanni, Oreoluwa Okunade, Emeka Emmanuel Okoro, Babalola Aisosa Oni, Manikandan M.   +4 more
wiley   +1 more source

Effects of Alloy Content on Impact Toughness in X80 Pipeline Steel [PDF]

Proceedings of the 2015 2nd International Forum on Electrical Engineering and Automation (IFEEA 2015), 2016
The X80 pipeline steel for the west to east gas transmission project was successful produced, based on the hot strip mills equipment advantage. However, the impact toughness was unstable during the production. In this research, optical microscope, scanning electron microscopy (SEM) and energy dispersive analysis (EDS) test were used to study the ...
Maofa Jiang, Xiaoliang Li, Ren Chen, Chengjun Liu, Guoxi Wu   +4 more
openaire   +1 more source

Mechanical Properties of High-Nb X80 Steel Weld Pipes for the Second West-to-East Gas Transmission Pipeline Project

Advances in Materials Science and Engineering, 2017
The mechanical properties of steel pipe have great effects on the integrality and operation safety of gas transmission pipeline. In order to reduce the cost of the steel pipe, the high-Nb X80 pipeline steels with the different alloying systems have been ...
Gui-ying Qiao, Xiao-wei Chen, Zhi-en Zhang, Xiu-lin Han, Xu Wang, Bo Liao, Fu-ren Xiao   +6 more
doaj   +1 more source

Carbon Dioxide Corrosion Mechanisms: Historical Development and Key Parameters of CO2‐H2O Systems

International Journal of Corrosion, Volume 2024, Issue 1, 2024.
The recent failures in flexible pipes have motivated the exhaustive research of corrosion mechanisms on high‐strength carbon steel armor wires that are the main structural compounds of those structures that mostly operate in seawater environments in the presence of carbon dioxide (CO2) and confined spaces.
D. Fonseca, M. R. Tagliari, W. C. Guaglianoni, S. M. Tamborim, M. F. Borges, Michael J. Schütze   +5 more
wiley   +1 more source

Determination of the design parameters of X80 cold bending pipe with 1 422 mm diameter in China-Russia Eastern Gas Pipeline

You-qi chuyun, 2020
In order to satisfy the actual construction needs of China-Russia Eastern Gas Pipeline Project, it is necessary to research the design parameters of the cold bending pipe of X80 pipeline with 1 422 mm diameter. In this paper, the maximum bending angle of
Xiaoqiang ZHANG, Yu HOU, Qingmei JIANG, Wei FENG   +3 more
doaj   +1 more source

Characteristic investigation of stress-hydrogen coupling hydrogen diffusion of X80 steel based on finite element simulation [PDF]

MATEC Web of Conferences
Since hydrogen atoms are enriched in the corrosion defect regions of steel pipelines under stress-induced effects when transporting gaseous hydrogen, this leads to the hydrogen embrittlement (HE) phenomenon.
Shen Jiaping, Zhou Haiting, Zhu Xinwei, Yang Jianhua, Miu Haibo, Cai Zhihui, Wang Qiang, Song Yun   +7 more
doaj   +1 more source

Structural Design of Demagnetization Detection Robot in Oil and Gas Pipeline

Shiyou jixie, 2020
The oil and gas pipelines in service will produce certain residual magnetism due to the influence of various factors. To quickly and efficiently eliminate the residual magnetism, according to the theory of dynamic demagnetization of permanent magnets, a ...
Jia Shihao, Zhao Hong
doaj  

Hydrogen Embrittlement Sensitivity of X80 Pipeline Steel Welded Joints in Hydrogen Environment [PDF]

Cailiao Baohu
In order to explore the changes in fracture mechanical properties of pipeline steel welded joints in hydrogen environment, the notched tensile in-situ hydrogen charging method was used to study the hydrogen embrittlement susceptibility of X80 steel base ...
LI Tianlei, LI Ke, SHI Daiyan, FENG Min, YANG Zhiwen, CHEN Yingfeng, WANG Xiuyun, LIN Yuanhua, YU Zifeng
doaj   +1 more source

Limit displacement of a landslide for an X80 buried pipeline crossing it

Zhongguo dizhi zaihai yu fangzhi xuebao, 2023
When transporting natural gas, long-distance pipelines will inevitably pass through areas with frequent geological disasters, and landslides are the most threatening to pipelines. Therefore, it is very important to study the safety assessment of pipelines under the action of landslides.
Peng ZHANG, Xiaoyu WANG, Xuemei TANG, Siming LIU   +3 more
openaire   +1 more source