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 +4 more
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Study on corrosion behavior of X80 steel under stripping coating by sulfate reducing bacteria [PDF]
BMC Biotechnology, 2021 Background At present, microorganism has been considered as important factors that threaten to buried pipelines with disbonded coatings. Aiming at the problem of unknown corrosion mechanism of sulfate-reducing bacteria (SRB), a series of studies have ...
Yan-Yu Cui +3 more
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Cathodic Protection Criteria for X80 Steel in Soil Extract
International Journal of Electrochemical Science, 2020 Potentiodynamic polarization, electrochemical impedance spectroscopy and slow strain tensile rate tests were used to establish the negative critical potential range for cathodic protection of X80 steel in soil extract.
Shixiong Wu +6 more
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Corrosion Behavior of X80 Steel Under Anodic Polarization
International Journal of Electrochemical Science, 2020 To investigate the corrosion behavior of X80 steel caused by an anodic current density, electrochemical tests of X80 steel in near-natural NS4 solution under varying anodic current densities, Iac, were performed.
Su Xibeier, Wang Wenwu, Wang Lei, Yu Hao
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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 +6 more
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Tempering microstructure and mechanical properties of pipeline steel X80
Transactions of Nonferrous Metals Society of China, 2009 The tempering microstructure and mechanical properties of X80 steel used for heating-bent pipe were analyzed. The results show that the microstructure of X80 steel tempered at 550 ℃ and 600 ℃ is bainitic ferrite (BF)+granular bainite (GB), and partial ferrite laths in BF merge and broaden.
Jian-Xun Zhang, Jing Niu
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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 +8 more
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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 +5 more
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Study of phase transformations In API 5L X80 Steel in order to increase its fracture toughness [PDF]
Materials Research, 2013 Phase transformations in API 5L X80 steel were studied in different thermomechanical sequences with a view to increasing the fracture toughness of this steel.
Igor Rafael Vilarouco Pedrosa +3 more
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Effect of applied potentials on the corrosion of X80 pipeline steel in simulated coastal soil solution [PDF]
Journal of Hebei University of Science and Technology, 2023 In order to explore the corrosion mechanism of dual-phase X80 pipeline steel in the coastal soil simulation solution environment, the stress corrosion and electrochemical corrosion behavior of dual-phase X80 pipeline steel under different applied ...
Jing MA +5 more
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