Results 51 to 60 of about 468 (174)

Full‐scale testing of near‐neutral pH stress corrosion cracking growth behavior of a vintage X52 oil pipe

Fatigue &Fracture of Engineering Materials &Structures, Volume 47, Issue 5, Page 1638-1655, May 2024.
Abstract This study presents an experimental investigation conducted on a 40‐year‐old vintage X52 oil pipe segment to assess the growth behavior of near‐neutral pH stress corrosion cracking (SCC). Six cracks were introduced on the pipe specimen, each of which was associated with a unique combination of metallurgical and environmental condition.
Haotian Sun, Li Yan, Darren Bibby, Jean‐Philippe Gravel, Jidong Kang, Wenxing Zhou   +5 more
wiley   +1 more source

Corrosion behavior of X80 pipeline steel in a simulated soil solution at different temperatures

International Journal of Electrochemical Science
For the X80 pipeline steel, electrochemical impedance spectroscopy and potentiodynamic polarization curves were employed to examine the electrochemical corrosion behaviors of its base metal and weld joint under varying test in NS4 simulated soil solution.
Guoqi Ren, Xiaoyu Shi, Yuna Xue, Yongji Zhao, Ming Liu, Chenchao Tian, Sheji Luo   +6 more
doaj   +1 more source

Hydrogen Embrittlement Sensitivity of X80 Pipeline Steel Welded Joints in Hydrogen Environment [PDF]

Cailiao Baohu
In order to explore the changes in fracture mechanical properties of pipeline steel welded joints in hydrogen environment, the notched tensile in-situ hydrogen charging method was used to study the hydrogen embrittlement susceptibility of X80 steel base ...
LI Tianlei, LI Ke, SHI Daiyan, FENG Min, YANG Zhiwen, CHEN Yingfeng, WANG Xiuyun, LIN Yuanhua, YU Zifeng
doaj   +1 more source

Synthetically Modified Tara and Oak Gall Nut Tannin‐Based Corrosion Inhibitors for Combating the Corrosive Influence of Acidithiobacillus thiooxidans on Mild Steel

International Journal of Corrosion, Volume 2024, Issue 1, 2024.
Natural tara and oak gall nut tannins, which lack corrosion inhibitive properties, were modified using gum arabic and tested against microbial corrosion induced by Acidithiobacillus thiooxidans under isothermal condition (28°C). Mild steel coated with the modified tannins was exposed to the causative under aerobic and anaerobic conditions. Based on the
Samuel Eshorame Sanni, Oreoluwa Okunade, Emeka Emmanuel Okoro, Babalola Aisosa Oni, Manikandan M.   +4 more
wiley   +1 more source

Reinforcement test of epoxy-filled steel sleeves for girth weld defects of X80 pipelines

You-qi chuyun, 2021
In order to verify the applicability of epoxy-filled steel sleeves for reinforcement of the girth weld defects in X80 steel pipelines, X80 pipe fittings with 1 016 mm diameter were selected as the specimens and on the specimens two girth welds with same ...
Dongliang YU, Chuan YANG, Dongrong WU, Ailing WANG, Hui HUANG, Bin JIA, Yu ZHANG   +6 more
doaj   +1 more source

Carbon Dioxide Corrosion Mechanisms: Historical Development and Key Parameters of CO2‐H2O Systems

International Journal of Corrosion, Volume 2024, Issue 1, 2024.
The recent failures in flexible pipes have motivated the exhaustive research of corrosion mechanisms on high‐strength carbon steel armor wires that are the main structural compounds of those structures that mostly operate in seawater environments in the presence of carbon dioxide (CO2) and confined spaces.
D. Fonseca, M. R. Tagliari, W. C. Guaglianoni, S. M. Tamborim, M. F. Borges, Michael J. Schütze   +5 more
wiley   +1 more source

Characteristic investigation of stress-hydrogen coupling hydrogen diffusion of X80 steel based on finite element simulation [PDF]

MATEC Web of Conferences
Since hydrogen atoms are enriched in the corrosion defect regions of steel pipelines under stress-induced effects when transporting gaseous hydrogen, this leads to the hydrogen embrittlement (HE) phenomenon.
Shen Jiaping, Zhou Haiting, Zhu Xinwei, Yang Jianhua, Miu Haibo, Cai Zhihui, Wang Qiang, Song Yun   +7 more
doaj   +1 more source

Preparation of stable superamphiphobic surfaces on X80 pipeline steel substrates

RSC Advances, 2016
Micro/nano multi-scale superamphiphobic surfaces with excellent stability were prepared via facile electrochemical-deposition, alkaline etching and fluorination treatment processes.
Yong Liu, Tian Ding, Qian Meng, Bohua Dong, Lixin Cao, Rongjie Gao   +5 more
openaire   +1 more source

Effects of pH on the Electrochemical Behavior and Stress Corrosion Cracking of X80 Pipeline Steel in Simulated Alkaline Soil Solution

International Journal of Electrochemical Science, 2019
The electrochemical behavior of X80 pipeline steel in alkaline soil solution with different pH value was studied by mean of potentiodynamic polarization and electrochemical impedance spectroscopy (EIS).
Ping Liang, Yier Guo, Hua Qin, Yanhua Shi, Fei Li, Lan Jin, Zheng Fang   +6 more
doaj   +1 more source

Thermodynamic analysis of X80 pipeline steel after calcium treatment [PDF]

Proceedings of the 2015 2nd International Conference on Machinery, Materials Engineering, Chemical Engineering and Biotechnology, 2016
Based on thermodynamic calculation, analysis the inclusions and thermodynamics of X80 before and after calcium treatment on the sample of a steel production.Results show that the effect of Al2O3 inclusions degeneration is good and S would exist in a dissolved state so that avoids the CaS inclusion precipitation when the ω(Als) is 0.04%,ω(O) is adjusted
JinLing Yang, Qichun Peng, Pengbiao Wang
openaire   +1 more source