Results 41 to 50 of about 1,080 (202)
In Situ Ultrasonic Characterization of Hydrogen Damage Evolution in X80 Pipeline Steel. [PDF]
Materials (Basel)A nondestructive evaluation of the hydrogen damage of materials in a hydrogen environment is important for monitoring the running conditions of various pieces of equipment. In this work, a new thermostatic electrolytic hydrogenation in situ ultrasonic test system (In Situ TEH-UT) was developed.
Chen B +5 more
europepmc +3 more sources
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
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
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
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
Safety assessment on girth welds of large-diameter X80 pipelines in water network area
You-qi chuyun, 2023 As the soil in the water network area is soft and has large water content, it is very easy to settle, which applies an axial load to the pipeline, and the girth weld under the action of tensile load has a higher risk of failure.
Yuqing LIU +5 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
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
Limit width analysis of X80 corroded pipeline pass through landslide
Zhongguo dizhi zaihai yu fangzhi xuebao, 2022 In view of the safety early warning problems involved in X80 corroded pipeline crossing landslide, it is proposed to take the limit width as the discrimination factor of pipeline safety state, establish a finite element model according to the specific ...
Peng ZHANG +3 more
doaj +1 more source
A Comparison of Cathodic Protection Parameters with High- Strength Pipeline Steels in Soil Solution
International Journal of Electrochemical Science, 2014 Cathodic protection is usually used to control the corrosion in service pipeline. The optimum cathodic protection potential (OCPP) becomes a vital part in order to get the best protective effect in the whole research of cathodic protection.
Xinhua Wang +3 more
doaj +1 more source