Results 81 to 90 of about 844,278 (212)

Influence of AC interference on Crack Initiation Behavior of Pipeline Steel in High pH Solution

open access: yesInternational Journal of Electrochemical Science, 2019
Stress corrosion cracking (SCC) behavior of U-bend samples of X80 steel under AC application was investigated in high pH solution by scanning electron microscopy (SEM), macroscopic observation and polarization curves.
Min Zhu   +4 more
doaj   +1 more source

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

open access: yesInternational 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   +5 more
wiley   +1 more source

Effect of hydrostatic pressure on the anodic dissolution process of X80 steel

open access: yesJournal of Materials Research and Technology
Based on the fact that hydrostatic pressure affects chemical potentials of reaction species and the structure evolution of electric double layer (EDL), the authors propose a generalized-BV equation to analyze the anodic dissolution process of X80 steel in deep-sea environment.
Shixiong Wu   +4 more
openaire   +2 more sources

Effect of Al–Zn Alloy Coating on Corrosion Fatigue Behavior of X80 Riser Steel

open access: yes, 2019
This paper presents a corrosion fatigue cyclic failure test for X80 steel, which has arc sprayed with an Al–Zn coating in natural seawater under different stress levels.
Zhongying Han   +2 more
core   +1 more source

Numerical Study of the Crack-Front Constraint for SENT Specimens of X80 Pipeline Steel

open access: yes, 2017
This work presents a numerical study of crack-front constraint for SENT specimens of X80 pipeline steel, to examine geometry effect on the correlation of crack-front stress field and constraint.
Ting Zhong   +4 more
core   +1 more source

Corrosion Behavior of X80 Pipeline Steel under Coupling Effect of Stress and Stray Current

open access: yesInternational Journal of Electrochemical Science, 2014
In this work, the coupling effect of stress and stray current on corrosion of X80 pipeline steel was investigated in soil-simulating solution by open circuit potential (OCP) and corrosion potential test, potentiodynamic polarization measurement and ...
Xinhua Wang   +4 more
doaj   +1 more source

Effect of Alternating Current on Corrosion Behavior of X80 Pipeline Steel in Near-Neutral Environment

open access: yes, 2017
The rapid development of energy, electricity, and transportation industries has created a market for steel pipes; however, buried steel pipelines near high-voltage transmission lines and electrified railways often experience alternating current (AC ...
Du Cuiwei   +4 more
core  

Study on Coercivity-Stress Relationship of X80 Steel under Biaxial Stress

open access: yes, 2022
Buried pipelines are prone to deformation under surface displacement, pressure occupation, and/or other actions, resulting in stress concentration. Conducting regular stress detection is an important approach to reducing pipeline accidents.
Zhijiu Ai   +6 more
core   +1 more source

Research on Precipitate Behavior during Holding Process of X80 Pipeline Steel

open access: yesMATEC Web of Conferences, 2016
PTT (Precipitate-Temperature-Time) curve of X80 pipeline steel was obtained by strain relaxation method. The evolution of precipitate particle size during holding process was simulated combined with kinetic calculation, and observed using TEM in the ...
Niu Tao   +6 more
doaj   +1 more source

Effect of Applied Potential and Sulfate Reducing Bacteria on Corrosion Behavior of X80 Steel in Dagang Soil Simulated Solution

open access: yesInternational Journal of Electrochemical Science, 2020
The corrosion behavior of X80 steel in Dagang soil simulated solution was verified by potentiostatic immersion test and AC impedance test, and the corrosion morphology of metal surface under different applied potential in bacterial solution and sterile ...
Xiaoqing Sun, Fei Xie, Dan Wang, Ji Qi
doaj   +1 more source

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