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Effect of Heat Input on the Hydrogen Embrittlement Sensitivity of CGHAZ of X60 Pipeline Steel. [PDF]

Materials (Basel)
Zhang L, Wu Z, Zhou W, Zhang Q, Li B, Zhang Z, Wang B, Liu Q, Jia S, Yin S.   +9 more
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Failure assessment of X80 pipeline with interacting corrosion defects

Engineering Failure Analysis, 2015
Abstract Corrosion defects may compromise the safety of oil and gas pipelines. This paper investigates the failure behavior and failure pressure of X80 pipelines with longitudinally and circumferentially aligned interacting corrosion defects based on nonlinear finite element method, X80 pipeline with single corrosion defect is studied as well. On the
Yanfei chEN, Xiaoben Liu
exaly   +2 more sources

Electrochemical behaviour of X80 pipeline steel with alumina coating

Surface Engineering, 2015
X80 pipeline steel was firstly aluminised at a relative low temperature then treated by a microarc oxidation process. Electrochemical behaviour of X80 pipeline steel before and after the combined treatment was evaluated by electrochemical tests in different solution. Results show that ceramics coating composed of α-Al2O3 and γ-Al2O3 can be obtained on
M. Huang, M-X. Zhang, Y. Wang, P. Zhang, A-J. Xu   +4 more
exaly   +2 more sources

Effect of Nb on microstructure and corrosion resistance of X80 pipeline steel

International Journal of Pressure Vessels and Piping, 2023
Xuping Su, Haoping Peng
exaly   +2 more sources

Quantification of Splitting in X80 Pipeline Steel

Volume 3: Operations, Monitoring, and Maintenance; Materials and Joining, 2018
The results of in-depth analysis of microstructure and crystallographic texture of several industrial batches of line pipes with known full-scale burst test results are presented. Several microstructural features promoting splitting are highlighted and quantified using electron back-scattered diffraction (EBSD) data.
Alexey Gervasyev, Roumen Petrov, Igor Pyshmintsev, Chunyong Huo, Frank Barbaro   +4 more
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Splitting susceptibility in modern X80 pipeline steels

Materials Science and Engineering: A, 2020
Abstract The microstructure and crystallographic texture of modern industrially produced API X80 grade pipeline steels were studied to identify the factors associated with the phenomenon known as splitting, which can occur on the fracture surfaces of Charpy, drop-weight tear test and full-scale fracture propagation tests.
Gervasyev, Alexey, Pyshmintsev, Igor, Petrov, Roumen, Huo, Chunyong, Barbaro, Frank J   +4 more
openaire   +2 more sources

Hydrogen induced cracking of X80 pipeline steel

International Journal of Minerals, Metallurgy, and Materials, 2010
The hydrogen-induced cracking (HIC) behavior of X80 pipeline steel was studied by means of electrochemical charging, hydrogen permeation tests, tension test, and scanning electron microscopy (SEM). The experimental results indicate that the increase of charging time and charging current density or the decrease of the solution pH value leads to an ...
Chao-fang Dong, Kui Xiao, Zhi-yong Liu, Wen-jing Yang, Xiao-gang Li   +4 more
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The First L555 (X80) Pipeline in Japan

Volume 3: Materials and Joining, 2012
The construction of the first L555(X80) pipeline in Japan was completed in autumn, 2011.In this paper, the overview of the design consideration of the line, technical points for linepipe material and for girth welds are presented. In recent years the use of high strength linepipe has substantially reduced the cost of pipeline ...
Yoshiyuki Matsuhiro, Noritake Oguchi, Toshio Kurumura, Masahiko Hamada, Nobuaki Takahashi, Atsuhi Shirahama   +5 more
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Study on Microstructure and Properties of X80 Pipeline Steel

Advanced Materials Research, 2014
Experimental methods, such as OM, SEM and X-EDS, were used to study the microstructure of X80 pipeline steel. It mainly consists of fine acicular ferrite (AF). X80 pipeline steel possesses high strength and impact energy at-30°C approaches to 400J.
Xiang Dong Huo, Feng Dong, Lie Jun Li
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Fracture Toughness and Application of X80 Pipeline Steel

Materials Science Forum, 2019
The fracture toughness of X80 pipeline steel, which has been widely used in China, plays a key role in pipeline safety insurance. In order to know the accurate fracture toughness of X80, the methods of acoustic emission and high K ratio have been carried out to judge the initiation of crack propagation and improve flatness of fatigue pre-crack front ...
Hua Zhang, Hong Zhang, Cai Hong Lu
openaire   +1 more source