Results 111 to 120 of about 380 (162)

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 ...
Yong-Lin Kang
exaly   +2 more sources

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, De Liang Meng, Shou Yong An, Yong Lin Kang   +3 more
openaire   +2 more sources

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, Schaller, Rebecca Filardo, Asselin, Edouard   +2 more
openaire   +2 more sources

High pH-SCC mechanism investigation of novel Nb/Ce-additional X100 pipeline steel

Journal of Materials Research and Technology, 2023
High pH-SCC introduces great risks to the service safety of X100 pipeline steel. The design of new Nb and RE composite regulated pipeline steel can help to reduce the high pH-SCC. By the addition of Nb and Ce elements into traditional pipeline steel, the
Xiaojia Yang, Xiaogang Li
exaly   +3 more sources

Girth Welding of X100 Pipeline Steels

4th International Pipeline Conference, Parts A and B, 2002
Girth 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, Stephen A. Blackman, John Hammond, David V. Dorling   +3 more
openaire   +1 more source

Welding X100 steels for gas pipelines

Welding International, 2004
Abstract 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
openaire   +1 more source

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
openaire   +1 more source

A Weldability Study of Steel of Strength Class X100

Metallurgist, 2014
The effect of welded joint heat-affected zone (HAZ) cooling rate on structure, mechanical properties and brittle failure resistance of pipe steels of strength class X100 is studied by simulating welding thermal cycles in a Gleeble-3180 test unit.
D. A. Ringinen, A. V. Chastukhin, G. E. Khadeev, L. I. Efron, P. P. Stepanov   +4 more
openaire   +1 more source

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
openaire   +1 more source

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
openaire   +1 more source