Results 81 to 90 of about 354 (112)
Some of the next articles are maybe not open access.
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
openaire +1 more source
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
openaire +1 more source
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
openaire +1 more source
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
openaire +1 more source
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
openaire +1 more source
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
openaire +1 more source
Journal of Pipeline Systems Engineering and Practice, 2018
AbstractIn this paper, true stress–strain curves of two natural gas pipeline steels, API-5L X65 and X90, were studied using the three-dimensional digital image correlation (3D-DIC) technique.
L. Z. Kong +5 more
openaire +1 more source
AbstractIn this paper, true stress–strain curves of two natural gas pipeline steels, API-5L X65 and X90, were studied using the three-dimensional digital image correlation (3D-DIC) technique.
L. Z. Kong +5 more
openaire +1 more source
Effect of post-weld heat treatment on corrosion resistance of X90 pipeline steel joints
International Journal of Materials ResearchAbstract In order to improve the corrosion resistance of welded joints, X90 pipeline steel joints were subjected to post-weld heat treatment at 610 °C, 640 °C, and 670 °C (holding time was 1 h). Through electrochemical corrosion and full immersion corrosion experiments, the corrosion resistance of welded joints under various conditions ...
Defen Zhang +5 more
openaire +1 more source
Materials Science and Engineering: A, 2018
Abstract In the present study, the simulated coarse-grained heat-affected zones (CGHAZs) of X90 pipeline steel were produced using a Gleeble 3500 simulator under different heat inputs (HIs) varying from 10 to 50 kJ/cm to study the effect of HI on grain boundary evolution and toughness properties in CGHAZ of X90 pipeline steel.
Peishan Zhou +4 more
openaire +1 more source
Abstract In the present study, the simulated coarse-grained heat-affected zones (CGHAZs) of X90 pipeline steel were produced using a Gleeble 3500 simulator under different heat inputs (HIs) varying from 10 to 50 kJ/cm to study the effect of HI on grain boundary evolution and toughness properties in CGHAZ of X90 pipeline steel.
Peishan Zhou +4 more
openaire +1 more source
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
openaire +1 more source
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
openaire +1 more source
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
openaire +1 more source
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
openaire +1 more source
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
openaire +1 more source
Failure Analysis of X90 Pipeline Steel under Microbial Corrosion Environment
Journal of Failure Analysis and Prevention, 2022Yarong Zhang +3 more
openaire +1 more source