Results 41 to 50 of about 1,024 (167)

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

Change of the yield stress in roll formed ERW pipes considering the Bauschinger effect [PDF]

open access: yes, 2017
ERW pipes formed with the roll forming process show a yield stress distribution along the circumferential direction and their quality is strongly influenced by the magnitude and by the distributions of the yield stress.
Kang, Soochang   +4 more
core   +1 more source

Comparasion of Impact and Tensile Properties of High-Strength Steel

open access: yesMetals, 2018
Tensile and impact properties of API 5L X80 steel were investigated and compared in order to evaluate their relation. Yield and maximum forces under dynamic impact testing were obtained from force-displacement curves. Dynamic yield strength was estimated
Željko Alar, Davor Mandić
doaj   +1 more source

A critical review of the influence of hydrogen on the mechanical properties of medium-strength steels [PDF]

open access: yes, 2013
As medium-strength steels are promising candidates for the hydrogen economy, it is important to understand their interaction with hydrogen. However, there are only a limited number of investigations on the behavior of medium-strength steels in hydrogen ...
Atrens, Andrej, Liu, Qian
core   +1 more source

Numerical evaluation of multipass welding temperature field in API 5L X80 steel welded joints

open access: yesThe International Journal of Multiphysics, 2014
Muchos son los cambios metalúrgicos que sufren los materiales cuando se someten al ciclo térmico de soldadura, promoviendo una influencia considerable en las propiedades termomecánicas de las estructuras soldadas. En la fase de proyecto, una alternativa para evaluar la variable del ciclo de soldadura, sería el empleo de métodos computacionales a través
Jessica Nobrega   +6 more
openaire   +2 more sources

The influence of Widmanstätten ferrite, martensite and grain boundary carbides on the strength and impact behaviour of high Al (0.2%) and Nb containing hot rolled steels [PDF]

open access: yes, 2020
The influence of Al and Nb on the strength and impact behaviour of hot rolled 0.06%C, 1.4%Mn steels has been determined after hot rolling to 15 and 30 mm thick plate.
Barrie, M., Naher, S., Qaban, A.
core   +1 more source

Mechanical Properties of High‐Nb X80 Steel Weld Pipes for the Second West‐to‐East Gas Transmission Pipeline Project

open access: yesAdvances in Materials Science and Engineering, Volume 2017, Issue 1, 2017., 2017
The mechanical properties of steel pipe have great effects on the integrality and operation safety of gas transmission pipeline. In order to reduce the cost of the steel pipe, the high‐Nb X80 pipeline steels with the different alloying systems have been used in the Second West‐to‐East Gas Transmission Pipeline Project.
Gui-ying Qiao   +7 more
wiley   +1 more source

HIPERC: a novel, high performance, economic steel concept for linepipe and general structural use [PDF]

open access: yes, 2010
The HIPERC project has examined the effects of alloying elements and processing conditions in low carbon, < 0.09 wt %., niobium containing, 0.05 - 0.12 wt.%, steels.
Bremer, Sandrine   +9 more
core   +2 more sources

Microstructure and fracture toughness of multipass friction stir welded joints of API-5L-X80 steel plates

open access: yesMaterials Science and Engineering: A, 2016
Friction stir welding with the optimum parameters offers high toughness and mechanical properties for pipeline steel applications; however, at subzero temperatures such joints have shown decreased toughness relative to room temperatures values as well as predominantly brittle behavior.
Ávila Díaz, Julián Arnaldo   +3 more
openaire   +2 more sources

Elastic-plastic defect interaction in (a)symmetrical double edge notched tension specimens [PDF]

open access: yes, 2017
Interaction of defects tends to intensify their crack driving force response compared to the situation where these defects act independently. The interaction between multiple defects is addressed in engineering critical assessment standards like BS7910 ...
De Waele, Wim   +2 more
core   +3 more sources

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