Results 31 to 40 of about 893 (202)
Research on Material Selection Method and Brittle Fracture Mechanism of High‐Pressure Pipeline
Shock and Vibration, Volume 2023, Issue 1, 2023., 2023 Aiming at the problem of the brittle fracture of pressure pipeline, the elastic constraint structure is described by using members and engineering building structures, and the concept of elastic constraint is proposed. Through the stress field analysis of the pressure pipeline under internal pressure, it is found that the pressure pipeline under ...
Yulin Li, Zhihui Li, Guangjian Dong
wiley +1 more source
The effect of hydrogen on the fracture toughness of friction‐stir welded API 5L X70 pipeline steels
Fatigue &Fracture of Engineering Materials &Structures, Volume 45, Issue 10, Page 3009-3024, October 2022., 2022 Abstract The hydrogen embrittlement (HE) leads to severe steel degradation of mechanical properties. The hydrogen atoms diffuse into the steel and get positioned into reversible and irreversible trap sites. The pipe to transport oil and gas needs to be welded to construct long‐distance pipeline projects; thus, friction‐stir welding (FSW) has proven an ...
Joseane M. Giarola +5 more
wiley +1 more source
Metals, 2020 Heavy gauge pipeline steels experience a low qualification in drop-weight-tear test properties because of the low cooling capability of conventional thermomechanical controlled processing.
Xue-qiang Wang +3 more
doaj +1 more source
Characterisation of the crack tip plastic zone in fatigue via synchrotron X‐ray diffraction
Fatigue &Fracture of Engineering Materials &Structures, Volume 45, Issue 7, Page 2086-2098, July 2022., 2022 Abstract This paper describes a new methodology for characterising the plastic zone ahead of a fatigue crack. This methodology is applied to a set of experimental data obtained by synchrotron X‐ray diffraction on a bainitic steel compact tension specimen.
Manuel Carrera +6 more
wiley +1 more source
International Journal of Electrochemical Science, 2018 The corrosion behavior of X80 pipeline steel in 3.5 wt.% NaCl solution and simulated Dagang soil solution under different alternating current (AC) electrical densities was studied using the weight loss method, and was tested and analyzed using the ...
Xinhua Wang +3 more
doaj +1 more source
mLife, Volume 1, Issue 1, Page 13-20, March 2022., 2022 Abstract Corrosion of iron‐containing metals under sulfate‐reducing conditions is an economically important problem. Microbial strains now known as Desulfovibrio vulgaris served as the model microbes in many of the foundational studies that developed existing models for the corrosion of iron‐containing metals under sulfate‐reducing conditions. Proposed
Toshiyuki Ueki, Derek R. Lovley
wiley +1 more source
You-qi chuyun, 2020 China-Russia Eastern Gas Pipeline is characterized by ultra-large diameter, high grade steel (X80) and high pressure rating. It is located in the area with geologically active permafrost and semi-permafrost zones in the north, where is prone to ...
Yukun LI +4 more
doaj +1 more source
Study on Improving the Performance of X80 Pipeline Steel
DEStech Transactions on Engineering and Technology Research, 2017 This paper analyzes the methods of improving the performance of X80 pipeline steel. In the process of manufacturing piping, the right temperature of coiling the steel can improve the comprehensive mechanical properties of X80 pipeline steel. The proper cooling rate can make heat affected zone get the good performance.
Yan Liu +3 more
openaire +2 more sources
Elimination and Control of δ Ferrite in M50NiL Bearing Steel
Advances in Materials Science and Engineering, Volume 2022, Issue 1, 2022., 2022 In this study, the effects of the annealing temperature and holding time on the δ ferrite content in M50NiL bearing steel are evaluated. The results indicate that when the temperature increases from 900°C to 1200°C, the δ ferrite content increases as a result of the increase in the Cr equivalent in the matrix, which decreases the stability of austenite
Bing Li +8 more
wiley +1 more source
Advances in Materials Science and Engineering, Volume 2022, Issue 1, 2022., 2022 Long‐distance pipelines are threatened by a variety of natural geological hazards. A stress monitoring system driven by the strain‐stress solution algorithm was proposed; it can achieve real‐time maximum axial stress measurement by installing vibrating wire gauges (VWGs) on the surface of the pipe.
Xinze Li +4 more
wiley +1 more source