Results 211 to 220 of about 25,385 (265)

Austenite grain growth behavior of X80 pipeline steel in heating process

Journal of Iron and Steel Research International, 2010
Through changing soaking temperature and soaking time, austenite grain growth behavior of X80 pipeline steel under different heating conditions was studied. Relationships of average grain size to soaking temperature and time were obtained respectively.
Lin-na Duan, Ji-man Wang, Qing-you Liu, Xin-jun Sun, Jian-chun Cao   +4 more
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FATIGUE CRACK GROWTH BEHAVIOR FOR WELDED JOINT OF X80 PIPELINE STEEL

Advanced Nondestructive Evaluation II, 2008
The fatigue crack growth behavior of high strength X80 pipeline steel was investigated with compact tension specimens that crack growth directions were aligned either parallel or normal to the rolling direction of the pipeline. Also, the fatigue crack growth rates for welded joint of X80 pipeline steel were investigated with compact tension specimens ...
YOUNGPYO KIM, CHEOLMAN KIM, WOOSIK KIM, KWANGSEON SHIN   +3 more
openaire   +1 more source

Effect of ionic liquids on the corrosion behaviour of X80 pipeline steel

Materials Science and Technology
The study encompasses the synthesis of an ionic liquid corrosion inhibitor using the ion exchange method. Its impact on the corrosion and hydrogen permeation behaviour of X80 pipeline steel in a CO2 environment is thoroughly investigated.
Chen Ma, Shuai Liu, Jia Wang, Wei Zhao, Hui Zhang, Song Gao, Weifeng Rao   +6 more
semanticscholar   +1 more source

Continuous Cooling Phase Transformation Rules of High Nb X80 Pipeline Steel

Materials Science Forum, 2016
The microstructural evolution of the high Nb X80 pipeline steel in Continuous Cooling Transformation (CCT) by Gleeble-3500HS thermal mechanical simulation testing system was studied, the corresponding CCT curves were drawn and the influence of some parameters such as deformation and cooling rate on microstructure of high Nb X80 pipeline steel was ...
Pei Pei Xia, Liu Qing Yang, Xiao Jiang Guo, Ye Zheng Li   +3 more
openaire   +1 more source

The corrosion analysis of X80 pipeline steel welded joint using wire beam electrode and numerical simulation methods

Anti-Corrosion Methods and Materials
Purpose The purpose of this study is to characterize the galvanic corrosion behavior of a simulated X80 pipeline steel welded joint (PSWJ) reconstructed by the wire beam electrode (WBE) and numerical simulation methods.
Xiaohui Dou, Yadong Li, Xinwei Zhang, Shengnan Wang, Yang Cheng, Wanpeng Yao, Dalei Zhang, Yan Li   +7 more
semanticscholar   +1 more source

Simulation of hydrogen diffusion in welded joint of X80 pipeline steel

Journal of Central South University, 2014
Hydrogen diffusion coefficients of different regions in the welded joint of X80 pipeline steel were measured using the electro-chemical permeation technique. Using ABAQUS software, hydrogen diffusion in X80 pipeline steel welded joint was studied in consideration of the inhomogeneity of the welding zone, and temperature-dependent thermo-physical and ...
Chun-yan Yan, Cui-ying Liu, Gen-yuan Zhang   +2 more
openaire   +1 more source

Micro-Behavior of Inclusions in X80 Pipeline Steel under Tensile Loading

Applied Mechanics and Materials, 2012
Specially designed SEM in-situ tensile tests have been conducted to trace the entire process of crack initiation and propagation induced by inclusions in X80 pipeline steel. The main inclusions are complex oxides containing aluminum, calcium and magnesium with round or oval shape, and their sizes are in the range of 3~20μm.
Yan Ping Zeng, Shao Hua Li, Ke Tong
openaire   +1 more source

Study on AC Corrosion on Cathodically Protected Pipeline of X80 Steel

CORROSION 2014, 2014
Abstract Alternating current (AC) induced-corrosion on cathodically protected pipeline of X80 steel was studied by electrochemical impedance spectra (EIS). Experiments show that: EIS curves contain two time constants which represent high-frequency capacitance arc and low-frequency inductive loop, respectively.
Peng Zhang, Jinfu Ma, Zhenjun Liu, Chunyan Ye   +3 more
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Welding of the high Grade Pipeline-Steel X80 and Description of Different Pipeline-Projects

Welding in the World, 2008
Nowadays already a lot of large onshore-projects have been implemented for the steel X80 with, as it seems, fully satisfactory results. The high grade pipeline-steel X80 is discussed in detail in this paper as well as the various projects performed with X80.
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IMPACT FRACTURE BEHAVIOR OF X80 PIPELINE STEEL

ACTA METALLURGICA SINICA, 2010
Wei DENG, Xiuhua GAO, Xiaomei QIN, Dewen ZHAO, Linxiu DU, Guodong WANG   +5 more
openaire   +1 more source