Results 71 to 80 of about 893 (202)

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

open access: yesInternational 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   +6 more
doaj   +1 more source

Thermodynamic analysis of X80 pipeline steel after calcium treatment [PDF]

open access: yesProceedings of the 2015 2nd International Conference on Machinery, Materials Engineering, Chemical Engineering and Biotechnology, 2016
Based on thermodynamic calculation, analysis the inclusions and thermodynamics of X80 before and after calcium treatment on the sample of a steel production.Results show that the effect of Al2O3 inclusions degeneration is good and S would exist in a dissolved state so that avoids the CaS inclusion precipitation when the ω(Als) is 0.04%,ω(O) is adjusted
JinLing Yang, Qichun Peng, Pengbiao Wang
openaire   +1 more source

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

open access: yes, 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

Synergistic Effect of AC and Cl- on Stress Corrosion Cracking Behavior of X80 Pipeline Steel in Alkaline Environment

open access: yesInternational Journal of Electrochemical Science, 2018
The effect of AC and Cl- on stress corrosion cracking behavior of X80 pipeline steel was investigated in alkaline solution using slow strain rate tensile (SSRT) tests and polarization curves.
Min Zhu   +3 more
doaj   +1 more source

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

open access: yesInternational 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

Investigate on the Properties of X80 Pipeline Steel Damaged by High Temperature

open access: yes, 2015
Remanufacturing engineering is an effective way to solve the waste of resource and the refurbishment of waste equipment. Laser remanufacturing technology mainly utilizes the laser cladding to repair the components and parts which were damaged or scrapped
Zhang, J.C., Ling, X., Lu, S.H.
core   +1 more source

Structural Design of Demagnetization Detection Robot in Oil and Gas Pipeline

open access: yesShiyou 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  

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

open access: yesMetals, 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   +5 more
doaj   +1 more source

Technical insights into the long-term integrity and sustainability of China-Russia Eastern Gas Pipeline

open access: yesYou-qi chuyun, 2020
This work developed technical insights into the maintenance of integrity, safety and sustainability of the newly operated China-Russia Eastern Gas Pipeline, and beyond.
Frank CHENG
doaj   +1 more source

Improvement in Ovality of Pipeline Steel X80 with Weld Power under Multi-Wire SAW Welding Process

open access: yes, 2011
Pipeline steel X80 is a kind of advanced high grade steel and commonly used in long-distance transportation of oil and gas. Ovality of the pipe plays key role in improving its crushing strength.
Xin Jiang Lu, Yi Bo Li, Ming Hui Huang
core   +1 more source

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