Results 121 to 130 of about 310 (159)
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Research on Hot Deformation Behavior of the X100 Pipeline Steel
Applied Mechanics and Materials, 2014The hot deformation of X100 pipeline steel was studied in the temperature range of 800~1200 °C and strain rate of 0.1~40s-1 on Gleeble-1500 thermal mechanical simulating tester. The effect of deformation conditions on the flow stress was analyzed. The constitutive equation of hyperbolic sine including Z parameter was used to describe the relationship ...
Wan Hua Yu +3 more
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The Underoil Droplet Corrosion Behavior of X100 Pipeline Steel
ECS Meeting Abstracts, 2018Canadian natural bitumen production will reach a peak of 112 million barrels per day in 2078 [1]. Pipelines are primarily used to transport this bitumen. Bitumen must be diluted in order to be pumped through a pipeline effectively because it is otherwise too viscous to flow [2].
Hongxing Liang +3 more
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Microstructures and Mechanical Properties of X100 Pipeline Steel Strip
Journal of Iron and Steel Research International, 2014Abstract Dynamic CCT (continuous cooling transformation) curves and effects of microstructures and M/A islands of X100 hot rolled strip on mechanical properties were studied by means of a thermal simulator, a scanning electron microscope (SEM), a transmission electron microscope (TEM), a digital micro-hardness tester and Image-Pro Plus analysis ...
Lin-na Duan +4 more
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Characterization of fiber laser welds in X100 pipeline steel
Materials & Design, 2009Recent developments in steel grades for pipeline applications have lead to new high strength grades, such as API5L-X100. Higher strength enables the use of thinner walled pipe, with greater operating pressures and reduced overall costs. The base material presents good toughness values; however there are still limitations regarding the weldability of ...
R. Miranda +4 more
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A nanoindentation study on the micromechanical characteristics of API X100 pipeline steel
Metals and Materials International, 2009The hardness characteristics of constituent micro-phases (ferrite and bainite) in a dual-phase API X100 pipeline steel were analyzed by nanoindentation experiments. The measured nano-hardness of the bainite phase is from 3.8 GPa to 4.9 GPa, which is much higher than that of the ferrite phase, which ranged from 1.75 GPa to 2.3 GPa. With the hardness and
Byoung-Wook Choi +2 more
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Hybrid intelligent method for fuzzy reliability analysis of corroded X100 steel pipelines
Engineering with Computers, 2020Epistemic uncertainties are critical for reliable design of corroded pipes made of high-strength grade steel. In this work, corrosion defects geometries and operating pressure are provided as the epistemic uncertainties in reliability analysis. A framework of an iterative approach-based bi-loop is presented for fuzzy reliability analysis (FRA) of ...
Mansour Bagheri +4 more
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Measurement and Analysis of Impact Test Data for X100 Pipeline Steel
Applied Mechanics and Materials, 2006Charpy upper shelf energy is widely used as a fracture controlling parameter to estimate the crack arrest/propagation performance of gas transportation pipeline steels. The measurement of this fracture criterion particularly for modern steels and its apportion into different components, i.e.
S.H. Hashemi +3 more
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Influence of Strain Aging on the Microstructure-Property of an X100 Pipeline Steel
Materials Science Forum, 2010The influence of strain aging on the microstructure-property characterization of an X100 pipeline steel was investigated by means of a thermal simulation technique, microscopic analysis method and mechanical properties testing. The experimental steel was prestrained in the tension at 6 pct and then was baked at 150oC, 200oC, 250oC and 300oC for 60 ...
Xiao Yong Zhang +3 more
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Effects of Chloride and Carbonate on Corrosion of API-X100 Pipeline Steel
Journal of Materials Engineering and Performance, 2019Effects of chloride, introduced with 0.03, 0.05, 0.10, 0.12, 0.22, 0.25 M, on the corrosion behavior of API-X100 pipeline steel in 0.15 M carbonate solutions were studied. The evaluations were carried out with monitoring the open-circuit potentials and electrochemical impedance spectroscopy (EIS).
Faysal Fayez Eliyan, Hatem M. Alsyouri
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Effect of Prestrain and Aging on Mechanical Properties of X100 Pipeline Steels
ICPTT 2013, 2013Harsh environments that may displace a given pipeline beyond the elastic limit include: seismic areas (that may be susceptible to soil liquefaction, fault displacement or soil instabilities), continuous or discontinuous permafrost (that may result in thaw settlement and frost heave), and construction.
Weiwei Zhang +4 more
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