Results 141 to 150 of about 453 (191)
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Ductile failure of X100 pipeline steel – Experiments and fractography
Materials & Design, 2013Abstract Ductile failure of X100 pipeline steel is studied. In order to study the effect of anisotropy, triaxiality factor and Lode angle on the failure, a series of specimens with different geometries are tested. Measurements of deformation in three dimensions are done to check the variation of elongation and lateral deformations during loading ...
R Ghajar, Giuseppe Mirone
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Static strain aging behavior of an X100 pipeline steel
Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing, 2012Abstract 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 +3 more
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Precipitation Behavior and Its Strengthening Effect of X100 Pipeline Steel
Journal of Iron and Steel Research International, 2010Abstract 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 ...
Yong-Lin Kang
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Microstructure and Mechanical Properties of X80/X100 High Deformability Pipeline Steel
Advanced Materials Research, 2011 In the present study, X80 and X100 grade high deformability pipeline steels have been processed by using TMCP and followed two-stage cooling process. The microstructures of the X80HD (HD, high deformability) and X100HD steels were both characterized by ferrite-bainite dual phase.
Dian Xiu Xia +3 more
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The Effects of Chloride Droplet Properties on the Underoil Corrosion of API X100 Pipeline Steel
Corrosion, 2019 The corrosive environment expected to form in diluted bitumen pipelines was explored by simulated exposure with a paraffin oil-covered chloride droplet on API X100 pipeline steel. The effects of droplet volume, chloride ion concentration, temperature, initial pH, and cation species on the underoil droplet corrosion behavior of API X100 pipeline steel ...
Liang, Hongxing +2 more
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Effect of coiling temperature on microstructure and properties of X100 pipeline steel
Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing, 2016Abstract Multiphase structure of bainite and M/A(martensite/austenite constituent) can be obtained through coiling continuous-HOP (Heating On-line Partitioning) technology, resulting in excellent deformability for X100 pipeline steel. The microstructure and properties of the steel at different coiling temperatures were investigated by means of ...
Shixia Cheng +5 more
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A New Corrosion Mechanism for X100 Pipeline Steel Under Oil-Covered Chloride Droplets
Corrosion, 2018 A 1.7 mM NaCl droplet on X100 pipeline steel covered by paraffin oil is used to simulate the corrosive environment encountered in heavy oil or bitumen pipelines. The development of corrosion under the droplet was monitored and explored in two stages. In the initial stage (1 h), the distribution of corrosion pits was heterogeneous with one area under ...
Liang, Hongxing +3 more
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Girth Welding of X100 Pipeline Steels
4th International Pipeline Conference, Parts A and B, 2002Girth welding trials involving pipes of minimum proof strength 690 MPa (X100) from several linepipe manufacturers have been conducted. Welding consumable selections for the trials were based on background data generated at Cranfield University coupled with potential weld metal mechanical property requirements thought necessary for the implementation of
Mark G. Hudson +3 more
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Welding X100 steels for gas pipelines
Welding International, 2004Abstract The increasing demand for high strength steel (to date not included in the standards for pipe material specifications) for dedicated long distance pipelines for natural gas transportation at high pressure (≥ 10 Mpa) has prompted studies of the overall integrity of both the pipe and the girth welds used, fundamental parts of the structural ...
R Aristotele, L F Di Vito, L Barsanti
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Plastic and damage behaviour of a high strength X100 pipeline steel: Experiments and modelling
International Journal of Pressure Vessels and Piping, 2008 International audienceThe purpose of this work is to develop a constitutive model integrating anisotropic behaviour and ductile damage for a X100 pipeline steel.
B Tanguy, J Besson
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