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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
doaj +2 more sources
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 +7 more sources
Effect of Nanosized NbC Precipitates on Hydrogen Diffusion in X80 Pipeline Steel. [PDF]
Materials (Basel), 2017 In this paper, the effects of dispersed 3 similar to 10 nm NbC precipitates on hydrogen diffusion in X80 pipeline steel were investigated by means of high resolution transmission electron microscopy (HRTEM), electrochemical hydrogen permeation, and ...
Cui Q, Wu J, Xie D, Wu X, Huang Y, Li X.
europepmc +2 more sources
Effect of Nb Content and Second Heat Cycle Peak Temperatures on Toughness of X80 Pipeline Steel. [PDF]
Materials (Basel), 2023 The microstructure evolution and variation of impact toughness in the heat-affected zone (HAZ) of X80 pipeline steel with different Nb content under different peak temperatures in the secondary thermal cycle were studied through welding thermal ...
Chen Y +6 more
europepmc +2 more sources
Effect of welding thermal cycles on the heat affected zone microstructure and toughness of multi-pass welded pipeline steels [PDF]
, 2012 This research is aimed at understanding the effect of thermal cycles on the metallurgical and microstructural characteristics of the heat affected zone of a multi-pass pipeline weld. Continuous Cooling Transformation (CCT) diagrams of the pipeline steel
Nuruddin, Ibrahim K.
core +7 more sources
Welding of X100 linepipe [PDF]
, 2004 The benefits of high strength steels in terms of reduced material volume due to enhanced mechanical performance have been known for some time. Large diameter transmission linepipe steels of minimum 690MPa ('XIOO') yield strength have been developed ...
Hudson, Mark G.
core +7 more sources
Strain model and experimental study of elastic viscoplastic for crack-tip zone of X80 steel pipe
Journal of Pipeline Science and Engineering, 2022 The mechanical state of the process zone at the crack-tip is one of the main factors that affect crack initiation and growth in the long-term safe operation of oil and gas pipelines. Many tests showed that the stress and strain fields in the fracture-tip
Shaohua Dong +7 more
doaj +1 more source
steel research international, Volume 94, Issue 6, June 2023., 2023 Herein, a new method is developed by combining scanning Kelvin probe force microscopy measurements with finite‐element modeling, studying the hydrogen atom diffusion and distribution in ferrite and bainite phases contained in X80 pipeline steel. The hydrogen atom concentrations in lattice and trap sites in the two phases are determined.
Qing Hu, Yufeng Frank Cheng
wiley +1 more source
Energy Science &Engineering, Volume 11, Issue 1, Page 398-409, January 2023., 2023 A new analytic method for the buried pipeline crossing the normal fault based on the shape function. Abstract Oil and gas pipelines that go through an active normal fault often deform largely and cause serious disasters. On the basis of the beam theory of the elastic foundation and assuming a shape function for the deformed pipeline, a new analytical ...
Wen‐jun Hu +4 more
wiley +1 more source
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