Results 21 to 30 of about 2,006 (215)

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

Initiation of hydrogen induced cracks at secondary phase particles [PDF]

open access: yes, 2020
The goal of this work is to propose a general mechanism for hydrogen induced crack initiation in steels based on a microstructural study of multiple steel grades.
Claeys, Lisa   +5 more
core   +3 more sources

Comparative analysis of dynamic strength and impact toughness of pipe steels [PDF]

open access: yesEPJ Web of Conferences, 2021
To study the dynamic strength of pipe steels, a cycle of dynamic tests of three grades of pipeline steels (X80, X90, and X100) was performed, which included three types of experiments based on the Kolsky method: uniaxial tension of smooth specimens, as ...
Bragov Anatoly   +3 more
doaj   +1 more source

Combined numerical-experimental framework for strain based design and flaw assessment of girth welds [PDF]

open access: yes, 2013
An increasing number of transmission pipelines have to be installed and operated in harsh conditions, due to the diminishing reserves of exploited fossil fuel sources.
De Waele, Wim   +4 more
core   +2 more sources

Corrosion Behavior of X100 Pipeline Steel and Its Heat-Affected Zones in Simulated Alkaline Soil Solution

open access: yesInternational Journal of Electrochemical Science, 2019
The microstructure changes underwent by the heat-affected zones (HAZ) of a X100 pipeline steel and the corrosion behavior of these zones and the base steel were studied in a simulated alkaline soil solution.
Xinhua Wang   +4 more
doaj   +1 more source

Comparative study of evolution of residual stress state by local mechanical tensioning and laser processing of ferritic and austenitic structural steel welds. [PDF]

open access: yes, 2015
Complex thermal stresses generated in welded structures are undesirable but inevitable in fusion welding. The presence of residual stresses can be detrimental to the integrity of a welded joint.
Coules, Harry E.   +3 more
core   +1 more source

EFFECTS OF MO, CR, AND V ADDITIONS ON TENSILE AND CHARPY IMPACT PROPERTIES OF API X80 PIPELINE STEELS [PDF]

open access: yes, 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

Preparation and Corrosion Resistance of Superhydrophobic Ni-P-Al2O3 Coating on Pipeline Steel in simulated alkaline soil solution

open access: yesInternational Journal of Electrochemical Science, 2021
Superhydrophobic coating with good corrosion resistance has become a research hotspot. The nano-Ni-P-Al2O3 composite coating was prepared on the surface of pipeline steel by electrodeposition technology with nano-Al2O3 particles into the bath, which ...
Qiuli Zhang   +5 more
doaj   +1 more source

Effect of Quench Tempering on Hydrogen Embrittlement and Corrosion Behavior of X100 Pipeline Steel

open access: yesMetals, 2023
In this study, the hydrogen embrittlement and corrosion behavior of X100 pipeline steel (Ref) was investigated after various heat treatments, including one-step austenitizing at 880 °C (HT3), 830 °C (HT2), and 780 °C (HT1) for 90 min, oil quenching to ...
Reza Khatib Zadeh Davani   +5 more
doaj   +1 more source

Prediction of crack propagation and arrest in X100 natural gas transmission pipelines with the strain rate dependent damage model (SRDD). Part 1:A novel specimen for the measurement of high strain rate fracture properties and validation of the SRDD model parameters [PDF]

open access: yes, 2013
A novel specimen for the measurement of strain rate and triaxiality dependent fracture properties of metals is described. The specimen is used in a conventional tensile split Hopkinson pressure bar test.
Oikonomidis, F.   +2 more
core   +2 more sources

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