Results 91 to 100 of about 2,375 (229)

Experimental and numerical analysis of deformation patterns in notched heterogeneous welds [PDF]

open access: yes, 2017
Standardized weld flaw assessment techniques assume the weld region to be homogeneous which is a strong idealisation of reality. Characterising the effects of heterogeneous properties of welds through the analysis of deformation patterns and slip lines ...
De Waele, Wim   +4 more
core   +2 more sources

Automated Brittle Fracture Rate Estimator for Steel Property Evaluation Using Deep Learning After Drop-Weight Tear Test [PDF]

open access: yes, 2019
This study proposes an automated brittle fracture rate (BFR) estimator using deep learning. As the demand for line-pipes increases in various industries, the need for BFR estimation through dropweight tear test (DWTT) increases to evaluate steel's ...
HYEYEON, CHOI   +5 more
core   +1 more source

Experimental Study on Dephosphorization of X80 Pipeline Steel by Duplex Steelmaking Technology for Combined Blowing Converter

open access: yesTeshugang, 2023
Combined with the actual situation of X80 pipeline steel production in a factory, the dephosphorization process of combined blowing converter duplex process was tested, and the influence of basicity and oxidizability of converter slag on ...
赵斌   +5 more
doaj  

Assessing carbon dioxide emission reduction potentials of improved manufacturing processes using multiregional input output frameworks [PDF]

open access: yes, 2016
Evaluating innovative process technologies has become highly important within the last decades. As standard tools different Life Cycle Assessment methods have been established, which are continuously improved.
Burger, Mia   +10 more
core   +1 more source

Corrosion Behavior of X65 and X80 Pipeline Steels under AC Interference Condition in High pH Solution

open access: yesInternational Journal of Electrochemical Science, 2018
The corrosion behavior of X65 and X80 pipeline steels under AC interference in high pH solution was investigated by potentiodynamic polarization curve, open circuit potential, Mott-Schottky curve and immersion test.
Min Zhu   +3 more
doaj   +1 more source

Effect of Microstructural Constituents on Hydrogen Embrittlement Resistance of API X60, X70, and X80 Pipeline Steels [PDF]

open access: yesArchives of Metallurgy and Materials
This study describes how microstructural constituents affected the hydrogen embrittlement resistance of high-strength pipeline steels. The American Petroleum Institute (API) X60, X70, and X80 pipeline steels demonstrated complicated microstructure ...
Seung-Hyeok Shin   +3 more
doaj   +3 more sources

Characterization of Mechanical Properties of Pipeline Steel Based on Small Punch Tests with Thin Specimens

open access: yesShiyou jixie, 2023
To solve the problem that conventional testing methods cannot accurately characterize the mechanical property of materials in local areas of high-steel-grade pipelines,the empirical correlation method for characterizing the mechanical properties through ...
Fang Yingchao   +4 more
doaj  

Structure and Mechanical Properties of Linepipe Steel X80

open access: yesTeshugang, 2006
The  structure,strength  and  impact  toughness  of  linepipe  steel  X80-0.04C,1.87Mn,0.27Mo,0.06Nb,  0.006V,0.017Ti were tested and compared with linepipe steel X70.The exarination results showed that as structure of the linepipe  steel X80 was ...
张小立   +6 more
doaj  

A combined phenomenological model for the representation of anisotropic hardening behavior in high strength steel line pipes

open access: yes, 2010
International audienceLine pipes have anisotropic mechanical properties, such as tensile strength, ductility and toughness. These properties depend on both prestrain during the cold forming process and on the anisotropy of the mother plates.
Besson, Jacques   +2 more
core   +3 more sources

Relationship between coercive force and stress of X80 pipeline steel

open access: yesJournal of Physics: Conference Series
Abstract X80 pipeline steel is widely used in long-distance oil and gas transportation due to its high strength and toughness. However, reducing wall thickness to cut costs can lead to stress concentration during forming and under external loads.
Shuang Zhao   +4 more
openaire   +1 more source

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