Results 31 to 40 of about 2,375 (229)
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
EFFECTS OF MO, CR, AND V ADDITIONS ON TENSILE AND CHARPY IMPACT PROPERTIES OF API X80 PIPELINE STEELS [PDF]
, 2019 In this study, four API X80 pipeline steels were fabricated by varying Mo, Cr, and V additions, and their microstructures and crystallographic orientations were analyzed to investigate the effects of their alloying compositions on tensile properties and ...
Chang-Hyo Seo +7 more
core +1 more source
Thermodynamic analysis of X80 pipeline steel after calcium treatment [PDF]
Proceedings 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
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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
Journal of Materials Research and Technology, 2023 The stress corrosion cracking (SCC) behavior of X80 pipeline steel under Desulfovibrio desulfurican (D. desulfurican), alternating current (AC) and cathodic protection (CP) was studied by the constant load tests and slow strain rate tensile (SSRT) test ...
Qi Fu +5 more
doaj +1 more source
Study on Stress‐Strain Characteristics of Pipeline‐Soil Interaction under Ground Collapse Condition
Geofluids, Volume 2022, Issue 1, 2022., 2022 Ground collapse is one of the main geological disasters affecting the safe operation of oil and gas pipelines. Studying the stress‐strain characteristics of pipe‐soil interaction under ground collapse has an important guiding role for the prevention of ground collapse and the safety protection of pipelines.
Xiaohui Liu +6 more
wiley +1 more source
The influence of material anisotropy and spiral welding on tensile strain capacity of spiral welded pipes [PDF]
, 2015 The longitudinal strain capacity of spiral welded pipelines displays to some extents unexplained behaviour. Therefore, they are not (yet) used extensively in offshore applications and harsh conditions, demanding a strain based design. An important factor
De Backer, Michiel +2 more
core +2 more sources
Geofluids, Volume 2022, Issue 1, 2022., 2022 With increasing gas resource development in the Arctic region, gas pipeline installations in permafrost regions are becoming important. Frost heave of pipeline foundation soils may occur when a chilled gas pipeline passes through unfrozen areas with frost‐susceptible soils.
Xinze Li +3 more
wiley +1 more source
Latest developments in mechanical properties and metallurgical features of high strength line pipe steels [PDF]
, 2013 In response to the increasing demand to improve both transportation efficiency and performance, the steel pipe industry has conducted extensive efforts to develop line pipe steel grades with superior metallurgical and mechanical (strength, toughness and ...
Belato Rosado, Diego +3 more
core +2 more sources
Simulation analysis of X80 pipeline steel welding
Metalurgija, 2023 In order to improve the quality of welded joints and increase the service life of pipelines, ABAQUS finite element software was used to simulate the temperature field of 18,4 mm thick X80 pipeline steel in multi-layer and multi pass welding. The peak temperature of different passes was compared, and the change trend of temperature field in the welding ...
Li, M. M. +4 more
openaire +2 more sources