Results 41 to 50 of about 25,385 (265)
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
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
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
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
You-qi chuyun, 2020 In the China–Russia Eastern Gas Pipeline Project, large diameter (OD 1 422 mm), high pressure (12 MPa) and high grade steel (X80) pipelines were used to transport huge amounts of natural gas, so as to meet the needs of energy strategy.
Yunlan YANG +7 more
doaj +1 more source
International Journal of Electrochemical Science, 2017 In buried pipeline steel, soil environmental factors cause corrosion, which greatly affects the safe operation of pipe networks. The effects of HCO3− on the corrosion behaviour of X80 pipeline steel in Liaohe Oilfield simulated soil solution was ...
Fei Xie +4 more
doaj +1 more source
Influence of notch orientation on ductile tearing in SENT specimens [PDF]
, 2014 There is a growing interest for the use of spiral welded pipes in strain based design related applications. Since the influence of the spiral weld on the plastic behaviour of the pipe is not yet fully understood, further research on this topic is ...
De Waele, Wim +5 more
core +1 more source
Study on Repairing and Reinforcing Effect of Steel Epoxy Sleeve on Girth Weld Defects
Shiyou jixie, 2022 In order to study the repairing and reinforcing effect of steel epoxy sleeve on girth weld defects of X80 pipeline,ANSYS is applied to establish the nonlinear finite element models of X80 pipeline with girth weld defects and pipeline reinforced by steel ...
Yu Dongliang +4 more
doaj
Investigation of strain measurements in (curved) wide plate specimens using digital image correlation and finite element analysis [PDF]
, 2012 Some pipelines face global plastic straining due to the nature of their installation process or harsh environmental conditions during operation. The ability of the girth welds to withstand these plastic strains is often evaluated on the basis of wide ...
De Waele, Wim +3 more
core +1 more source