Results 121 to 130 of about 25,385 (265)

A strain-based approach to study interaction between non-coplanar through-thickness edge notches

open access: yes, 2018
Structural integrity assessment procedures to assess the effect of interaction between multiple adjacent flaws normally consist of two stages. First, alignment rules categorize non-coplanar flaws as aligned or non-aligned.
De Waele, Wim   +2 more
core   +1 more source

Evolution of Microstructure of High-Grade Pipeline Steel

open access: yesTeshugang, 2008
With  increasing  the  strength  and  toughness  of pipeline  steel,the  corresponding  evolution  of structure  is pearlite-ferrite(X65    grade),acicular    ferite(X80    grade),particle    bainite-ferrite(X100    grade)and    lower    bainite(X120 ...
doaj  

EVALUATION OF INHIBITOR EFFICIENCY IN CRUDE OIL PIPELINE OF MISSAN OIL FIELDS SOUTH IRAQ

open access: yesJournal of Engineering and Sustainable Development, 2019
In this paper, three different types of pipeline materials and four types of corrosion inhibitors were test using immersion method in the crude oil solutions collected from six fields southern Iraq.
Haider Hadi Jasim, Raed Abd Al-Hussain
doaj  

Ductile-to-brittle transition behavior and determination method in X80 pipeline girth welds utilizing the master curve method

open access: yesHanjie xuebao
The fracture toughness distribution of X80 high-strength pipeline steel girth welds in the ductile-to-brittle transition region was systematically studied using the master curve method. According to ASTM E1921-97 Standard Test Method for Determination of
Baoming GONG   +5 more
doaj   +1 more source

Transition ductile-fragile des aciers pour gazoducs : Étude quantitative des ruptures fragiles hors plan et corrélation à l’anisotropie de microtexture [PDF]

open access: yes, 2015
High toughness of pipeline steels at low temperature is required to avoid catastrophic propagation of brittle crack. The aim of the study is to improve physical understanding and quantitative assessment of the toughness behavior of hot-rolled pipeline ...
Tankoua Yinga, Franck
core   +2 more sources

Effect of thermomechanical processing schedule on the texture and microstructure of pipeline grade API X80 microalloyed steel [PDF]

open access: yes, 2016
The presence of micro alloying constituents like Ti, Nb in microalloyed steel enhances its mechanical properties through grain size control and precipitation strengthening.
Ghosh Chowdhury, S   +4 more
core  

Effect of Rolling Process on Structure, Texture and Properties of X80 Pipeline Steel

open access: yesTeshugang, 2012
Observation of microstructure of X80 pipeline steel (/% : 0.043C, 0.25Si, 1.86Mn, 0.085Nb, 0.00lTi, 0.028Al, 0.0027N) has been carried out by using environmental scanning electron microscope, and characteristics of structure and grain-texture orientation
韩乐   +4 more
doaj  

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