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Relationship Between Microstructure and Mechanical Properties of X90 Pipeline Steel
2018The relationship between microstructure and mechanical properties of X90 pipeline steel was investigated. The results showed that X90 pipeline steel consists of granular bainite and M/A island. The mechanical properties including tensile and impact properties are influenced by the polygonal ferrite.
Xiang Zhang, Fang Yang
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Transactions of the Indian Institute of Metals, 2019
In this work, X90 pipeline steel was welded by shielded metal arc welding with root and submerged arc welding with calk and cap. After that, the joint was tempered at 550 °C and 600 °C. Subsequently, the microstructure and mechanical properties were investigated by optical microscope, scanning electron microscope (SEM) and Vickers hardness tester.
Defen Zhang +5 more
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In this work, X90 pipeline steel was welded by shielded metal arc welding with root and submerged arc welding with calk and cap. After that, the joint was tempered at 550 °C and 600 °C. Subsequently, the microstructure and mechanical properties were investigated by optical microscope, scanning electron microscope (SEM) and Vickers hardness tester.
Defen Zhang +5 more
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Volume 3: Operations, Monitoring and Maintenance; Materials and Joining, 2016
Two kinds of industry trial X90 pipeline steel which had different chemical composition were chosen as experimental materials, and the grain coarsening, microstructure evolution characteristics and the variation rules of low-temperature impact toughness in weld CGHAZ of this two steel under different welding heat input were studied by physical thermal ...
Liuqing Yang +4 more
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Two kinds of industry trial X90 pipeline steel which had different chemical composition were chosen as experimental materials, and the grain coarsening, microstructure evolution characteristics and the variation rules of low-temperature impact toughness in weld CGHAZ of this two steel under different welding heat input were studied by physical thermal ...
Liuqing Yang +4 more
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Металлы / Russian Metallurgy
The microstructure, substructure, and crystallographic texture of X90 pipeline steel were studied using optical and electron microscopy, electron backscatter diffraction (EBSD), and X-ray texture analysis. Fracture energy absorption was measured by drop-weight tear testing.
I.Yu. Pyshmintsev +4 more
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The microstructure, substructure, and crystallographic texture of X90 pipeline steel were studied using optical and electron microscopy, electron backscatter diffraction (EBSD), and X-ray texture analysis. Fracture energy absorption was measured by drop-weight tear testing.
I.Yu. Pyshmintsev +4 more
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Transactions of the Indian Institute of Metals, 2018
In this work, hybrid laser-arc welding process was applied to X90 pipeline steel which has wide potential applications in the future pipeline project. The effect of different laser power (1.0, 1.5 and 2.5 kW) on microstructure and mechanical properties of weld joints was investigated.
Mei Yang +7 more
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In this work, hybrid laser-arc welding process was applied to X90 pipeline steel which has wide potential applications in the future pipeline project. The effect of different laser power (1.0, 1.5 and 2.5 kW) on microstructure and mechanical properties of weld joints was investigated.
Mei Yang +7 more
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International Journal of Pressure Vessels and Piping, 2018
Abstract The X90 pipeline steels containing Nb and Ti elements have been produced by special critical-tempering rolling process (CTRP) and conventional thermomechanical controlled process (TMCP) respectively. Microstructure was investigated with field emission scanning electron microscopy (FESEM) and field emission transmission electron microscopy ...
J.M. Zhang, C.Y. Huo, Q.R. Ma, Y.R. Feng
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Abstract The X90 pipeline steels containing Nb and Ti elements have been produced by special critical-tempering rolling process (CTRP) and conventional thermomechanical controlled process (TMCP) respectively. Microstructure was investigated with field emission scanning electron microscopy (FESEM) and field emission transmission electron microscopy ...
J.M. Zhang, C.Y. Huo, Q.R. Ma, Y.R. Feng
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Volume 3: Materials and Joining; Risk and Reliability, 2014
Along with the increasing demand of oil and natural gas by various world economies, the operating pressure of the pipeline is also increasing. Large diameter heavy wall X80 pipeline steel is widely used in the long distance high pressure oil and gas transportation in China today.
Guodong Zhang +4 more
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Along with the increasing demand of oil and natural gas by various world economies, the operating pressure of the pipeline is also increasing. Large diameter heavy wall X80 pipeline steel is widely used in the long distance high pressure oil and gas transportation in China today.
Guodong Zhang +4 more
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Arabian Journal for Science and Engineering, 2018
The fracture toughness and R-curves of welded joints of API X90 pipeline steels were experimentally studied. Single-edge- notched tension (SENT) specimens and a normalization method were adopted. Joints welded by using three technologies (A, B, and C) were investigated.
Lingzhen Kong +4 more
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The fracture toughness and R-curves of welded joints of API X90 pipeline steels were experimentally studied. Single-edge- notched tension (SENT) specimens and a normalization method were adopted. Joints welded by using three technologies (A, B, and C) were investigated.
Lingzhen Kong +4 more
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The study on corrosion behavior of X90 pipeline steel under marine alternating dry/wet environment
Anti-Corrosion Methods and MaterialsPurpose This paper aims to investigate the corrosion mechanism of X90 pipeline steel under marine alternating dry/wet (ADW) environment and provide a scientific reference for the practical application of X90 grade high-strength low-alloy pipeline steel under marine environment.
Songyuan Bai +3 more
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