Results 21 to 30 of about 1,231 (190)

A comprehensive study on the microstructure and mechanical properties of arc girth welded joints of spiral welded high strength API X70 steel pipe [PDF]

open access: yes, 2020
In the paper, the effect of welding technology on the microstructure and mechanical properties of girth welded joints was presented. Metallographic examinations based on light microscopy and SEM were conducted on girth welded joints of API X70 steel pipe.
De Waele, Wim   +6 more
core   +1 more source

Investigation into the Impact Toughness of API 5L X80 Steel Weldments and its Relationship with Safe Welding Procedures [PDF]

open access: yesMaterials 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   +2 more sources

Evaluation the Effect of Velocity and Temperature on the Corrosion Rate of Crude Oil Pipeline in the Presence of CO2/H2S Dissolved Gases

open access: yesIraqi Journal of Chemical and Petroleum Engineering, 2019
In this paper investigate the influences of dissolved CO2/H2S gases, crude oil velocity and temperature on the rate of corrosion of crude oil transmission pipelines of Maysan oil fields southern Iraq.
Haider Hadi Jasim
doaj   +1 more source

Modeling of the temperature field generated by the deposition of weld bead on a steel butt joint by FEM techniques and thermographic images. [PDF]

open access: yesMaterials Research, 2018
The aim of this work is to predict the temperature field generated by welding a steel butt joint (API 5L X80). The prediction was modeled by finite element software Abaqus where the subroutine was developed in Fortran so that heat source motion may be ...
Eduardo José Fernandes Rocha   +5 more
doaj   +1 more source

An ANN‐based failure pressure prediction method for buried high‐strength pipes with stray current corrosion defect

open access: yesEnergy Science &Engineering, Volume 8, Issue 1, Page 248-259, January 2020., 2020
A three‐dimensional nonlinear finite element model for burst failure simulation of corroded pipes has been established and validated by experimental data. A novel failure pressure prediction method for high‐strength line pipes has been proposed via multilayer artificial neural network technique and FEM results derived by orthogonal experimental design.
Xiaoben Liu   +5 more
wiley   +1 more source

Low temperature tensile properties of line pipe steels [PDF]

open access: yes, 2015
Given the expected increase in Arctic oil and gas exploitation, there is a demand for high-strength line pipe steels able to cope with the Arctic climate. The state-of-the-art of the tensile properties of API 5L steels at low temperatures is reviewed and
De Waele, Wim   +2 more
core   +2 more sources

Efeitos da Taxa de Resfriamento na Soldagem do Aço API 5L-X80 [PDF]

open access: yesSoldagem & Inspeção, 2015
Uma das principais razões para o desenvolvimento do aço API 5L-X80 foi seu uso em Regiões Polares, onde se faz necessário alta tenacidade em baixas temperaturas. Neste trabalho foi estudado o efeito da taxa de resfriamento na soldagem sobre as propriedades mecânicas e metalúrgicas deste tipo de aço.
Moojen, Roberto Gomes   +3 more
openaire   +4 more sources

Latest developments in mechanical properties and metallurgical features of high strength line pipe steels [PDF]

open access: yes, 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

Evaluation of Co-Ni/SiC Nanocomposite Coating Obtained by Electrodeposition on the Corrosion Resistance of API 5L X80 Steel [PDF]

open access: yesMaterials 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   +2 more sources

The Corrosion Process of an API 5L X80 Welded Joint in a System with Different pH and H2S Concentration

open access: yesMaterials Research, 2022
The corrosion evaluation of steels in the oil and gas industry environments is a crucial issue because corrosion can cause economic and human losses.
M. B. L. Carvalho   +3 more
doaj   +1 more source

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