Results 161 to 170 of about 2,006 (215)

CTOA Measurements of Welds in X100 Pipeline Steel

2008 7th International Pipeline Conference, Volume 3, 2008
A suite of tests characterizing X100 pipeline steels was initiated at the National Institute of Standards and Technology (NIST) in Boulder. Part of the test matrix included testing the toughness of the base metal, welds, and heat-affected zones (HAZ) by use of modified double cantilever beam specimens for crack tip opening angle (CTOA) testing.
Elizabeth Drexler, Philippe Darcis, Christopher McCowan, J. Matthew Treinen, Avigdor Shtechman, Rony Reuven, Thomas Siewert, Robert Smith, James Merritt, J. David McColskey   +9 more
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Characterization of fiber laser welds in X100 pipeline steel

Materials & Design, 2009
Recent 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, A. Costa, L. Quintino, D. Yapp, D. Iordachescu   +4 more
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Microstructure and Properties of X100 High Strength Pipeline Steel

Materials Science Forum, 2015
In order to study the effect of welding process on the microstructure and properties of weld joint of X100 pipeline steel, GMAW was used to prepare the weld joint with low-carbon high manganese-molybdenum-nickel flux cored welding wire. SEM and XRD were used to analyze the microstructure and phase morphology of HAZ and weld metal.
Yu Xiao Tian, Bin Wang, Jun Liang Li, Bo Li Chen, Quan Feng   +4 more
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Microstructures and Mechanical Properties of X100 Pipeline Steel Strip

Journal of Iron and Steel Research International, 2014
Abstract 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, Yu Chen, Qing-you Liu, Shu-jun Jia, Cheng-chang JIA   +4 more
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The Underoil Droplet Corrosion Behavior of X100 Pipeline Steel

ECS Meeting Abstracts, 2018
Canadian 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, Jing Liu, Rebecca Filardo Schaller, Edouard Asselin   +3 more
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Static strain aging behavior of an X100 pipeline steel

Materials Science and Engineering: A, 2012
Abstract The effect of static strain aging on the microstructure and mechanical properties of an industrially produced X100 pipeline steel was investigated. It was found that strain aging plays an important role in the tensile property and features of stress–strain curves, with the increase of either pre-strain or aging temperature, the strength ...
Wengui Zhao, Meng Chen, Shaohui Chen, Jinbo Qu   +3 more
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Research on Hot Deformation Behavior of the X100 Pipeline Steel

Applied Mechanics and Materials, 2014
The 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, Fei Liu, Shan Gao, Su Dong Chen   +3 more
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Study on the Weldability of X100 Pipeline Steel on Scene

Advanced Materials Research, 2013
With the long-distance oil and gas pipelines are to development of the direction of large-diameter, high-pressure, high grade pipeline steel applications gradually become the trend of the development of the oil and gas pipeline construction. The welding process of the X100 line pipe which is about to industrial application is not yet to be determined ...
Pin Yi Wang, Zong Yuan Mou
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Precipitation Behavior and Its Strengthening Effect of X100 Pipeline Steel

Journal of Iron and Steel Research International, 2010
Abstract Using TEM (transmisson electron microscopy), electron diffraction, EDX (energy dispersive X-ray) analysis and physicochemical phase analysis, the morphology, crystal structure, size distribution and chemical composition of precipitates in the microstructure of high strength Nb-microalloyed X100 pipeline steel were investigated, and the ...
Tao Niu, Yong-lin Kang, Hong-wei Gu, Yu-qun Yin, Ming-liang Qiao   +4 more
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Welding with High Power Fiber Laser API5L-X100 Pipeline Steel

Materials Science Forum, 2010
The increasing length of oil and gas transportation pipelines, associated with their construction and operating costs, has lead to the development of new steel grades with higher performance. The API 5L- X100 is a new high strength steel for pipeline applications which enables the use of thinner walled pipes, lighter to transport and easier to handle ...
R.M. Miranda, L. Quintino, S. Williams, D. Yapp   +3 more
openaire   +1 more source