Influence of hydrogen on the microstructure and fracture toughness of friction stir welded plates of API 5L X80 pipeline steel [PDF]
International Journal of Hydrogen Energy, 2019 In this work, the influence of hydrogen on the microstructure and fracture toughness of API 5L X80 high strength pipeline steel welded by friction stir welding was assessed.
Hoyos, John +5 more
core +7 more sources
Evenmatched FCAW process in API 5L X80 steel welded joint [PDF]
Materials Research, 2014 The evenmatched welding conditions in FCAW-G process were used in API 5L X80 steel. In this study, two joint geometries (bevel 25° and 35°) with different process parameters were used.
Adérito de Aquino Filho +2 more
doaj +5 more sources
The effect of hydrogen on the fracture toughness of friction-stir welded API 5L X70 pipeline steels [PDF]
Fatigue &Fracture of Engineering Materials &Structures, Volume 45, Issue 10, Page 3009-3024, October 2022., 2022 The hydrogen embrittlement (HE) leads to severe steel degradation of mechanical properties. The hydrogen atoms diffuse into the steel and get posi- tioned into reversible and irreversible trap sites.
Bose Filho, Waldek +5 more
core +2 more sources
Ni0.5Zn0.5Fe2O4 as a Potential Corrosion Inhibitor for API 5L X80 Steel in Acidic Environment
International Journal of Electrochemical Science, 2014 Corrosion inhibitors are widely used in acid solutions during pickling, cleaning/descaling of boilers and several other industrial applications.
A.U. Chaudhry +3 more
doaj +2 more sources
Investigation into the Impact Toughness of API 5L X80 Steel Weldments and its Relationship with Safe Welding Procedures [PDF]
Materials Research, 2020 API 5L X80 steels are widely used in welded pipes in the petroleum industry. However, microstructural changes in the heat affected zone are a concern when welding such pipes due to the potential formation of regions with low toughness.
Thiago Rodrigues Carbos +4 more
doaj +5 more sources
Evaluation of Co-Ni/SiC Nanocomposite Coating Obtained by Electrodeposition on the Corrosion Resistance of API 5L X80 Steel [PDF]
Materials Research, 2017 Co-Ni/SiC nanocomposite coatings were obtained by codeposition of SiC nanoparticles in a bath with nickel and cobalt, using API 5L X80 as the substrate. The influence of cathodic current density on deposit properties was investigated.
Roseana Florentino da Costa Pereira +4 more
doaj +6 more sources
Surface Residual Stresses Evolution in API 5L X80 Steel with Different Surface Finish under Tensile Monotonic Loads [PDF]
Materials ResearchResidual stresses exist intrinsically in any manufactured or processed material, significantly influencing its mechanical properties. Shot peening enhances fatigue life by introducing compressive residual stresses at the surface, however, the beneficial ...
Raphael José Elino da Silveira +4 more
doaj +2 more sources
Analysis of the corrosion scales formed on API 5L X70 and X80 steel pipe in the presence of CO2 [PDF]
Materials Research, 2013 Longitudinal welded joints samples of X70 and X80 API grade steel pipes were exposed to a deaerated 1% NaCl solution containing CO2, at temperatures in the range of 25 ºC to 80 ºC for 48 hours. Analogous samples were exposed to the adjacent vapour phase.
A. B. Forero +2 more
doaj +4 more sources
Study of phase transformations In API 5L X80 Steel in order to increase its fracture toughness [PDF]
Materials Research, 2013 Phase transformations in API 5L X80 steel were studied in different thermomechanical sequences with a view to increasing the fracture toughness of this steel.
Igor Rafael Vilarouco Pedrosa +3 more
doaj +4 more sources
Failure Assessment for the High-Strength Pipelines with Constant-Depth Circumferential Surface Cracks [PDF]
Advances in Materials Science and Engineering, Volume 2018, Issue 1, 2018., 2018 In the oil and gas transportation system over long distance, application of high-strength pipeline steels can efficiently reduce construction and operation cost by increasing operational pressure and reducing the pipe wall thickness.
L. H. Dai +4 more
core +3 more sources