Results 21 to 30 of about 1,131,653 (157)
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
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
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
Phenomenological 2D and 3D Models of Ductile Fracture for Girth Weld of X80 Pipeline
Buildings, 2023 Welding is the main method for oil/gas steel pipeline connection, and a large number of girth welds are a weak part of the pipeline. Under extremely complex loads, a steel pipeline undergoes significant plastic deformations and eventually leads to ...
Naixian Li +4 more
doaj +1 more source
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
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
Relationship between coercivity and stress of X80 pipeline steel
You-qi chuyun, 2022 The operation environment along the long-distance oil and gas pipelines is complex, and the abnormal external load during pipeline operation may lead to local stress concentration, which will increase the operation risk of pipeline.The coercivity-based ...
CHENG Fanju +5 more
doaj +1 more source