scholarly journals Corrosion behaviour of X80 pipeline steel welded joint in H2O- saturated supercritical-CO2 environment

2020 ◽  
pp. 1713-1726
Author(s):  
Yongbo Yan ◽  
Keyword(s):  
Supercritical Co2 ◽  
Welded Joint ◽  
Corrosion Behaviour ◽  
Pipeline Steel ◽  
X80 Pipeline Steel ◽  
Co2 Environment

The Analysis of Low Temperature Toughness on X80 Pipeline Steel Welded Joint

2018 ◽  
Vol 71 (10) ◽  
pp. 2517-2526 ◽  
Author(s):  
Bin Wang ◽  
Yingchao Xu ◽  
Jing Hu ◽  
Senfeng Zhang ◽  
Chengwu Cui ◽  
...  
Keyword(s):  
Low Temperature ◽  
Welded Joint ◽  
Pipeline Steel ◽  
X80 Pipeline Steel ◽  
Low Temperature Toughness

scholarly journals Electrochemical Investigation of Corrosion of X80 Steel under Elastic and Plastic Tensile Stress in CO2 Environment

Metals ◽  
2018 ◽  
Vol 8 (11) ◽  
pp. 949 ◽  
Author(s):  
Wei Wu ◽  
Hailong Yin ◽  
Hao Zhang ◽  
Jia Kang ◽  
Yun Li ◽  
...  
Keyword(s):  
Corrosion Rate ◽  
Tensile Stress ◽  
Corrosion Behavior ◽  
Electrochemical Impedance ◽  
Pipeline Steel ◽  
Open Circuit ◽  
Co2 Corrosion ◽  
X80 Pipeline Steel ◽  
X80 Steel ◽  
Co2 Environment

An investigation into the electrochemical corrosion behavior of X80 pipeline steel under different elastic and plastic tensile stress in a CO2-saturated NaCl solution has been carried out by using open-circuit potential, potentiodynamic polarization, electrochemical impedance spectroscopy, and surface analysis techniques. The results show that the corrosion rate of X80 steel first increases and then slightly decreases with the increase of elastic tensile stress, whereas the corrosion rate sharply increases with the increase of plastic tensile stress. Both elastic and plastic tensile stress can enhance steel corrosion by improving the electrochemical activity of both anodic and cathodic reactions. Moreover, compared with elastic tensile stress, plastic tensile stress has a more significant effect. Furthermore, electrochemical reactions for CO2 corrosion and mechanoelectrochemical effect are used to reasonably explain the corrosion behavior of stressed X80 steel in CO2 environment.

Microstructure and Mechanical Properties of X80 Pipeline Steel Backing Welded Joint by Fiber Laser-MAG Hybrid Welding

2013 ◽  
Vol 40 (4) ◽  
pp. 0403002
Author(s):  
雷正龙 Lei Zhenglong ◽  
檀财旺 Tan Caiwang ◽  
陈彦宾 Chen Yanbin ◽  
刘德健 Liu Dejian ◽  
胡席远 Hu Xiyuan ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Fiber Laser ◽  
Welded Joint ◽  
Pipeline Steel ◽  
Hybrid Welding ◽  
X80 Pipeline Steel ◽  
Microstructure And Mechanical Properties

Understanding the pitting corrosion mechanism of pipeline steel in an impure supercritical CO2 environment

2018 ◽  
Vol 138 ◽  
pp. 132-142 ◽  
Author(s):  
Yong Xiang ◽  
Chen Li ◽  
Wuermanbieke Hesitao ◽  
Zhengwei Long ◽  
Wei Yan
Keyword(s):  
Pitting Corrosion ◽  
Supercritical Co2 ◽  
Pipeline Steel ◽  
Corrosion Mechanism ◽  
Co2 Environment

Fracture toughness of the materials in welded joint of X80 pipeline steel

2015 ◽  
Vol 148 ◽  
pp. 337-349 ◽  
Author(s):  
Yonghe Yang ◽  
Lei Shi ◽  
Zhen Xu ◽  
Hongsheng Lu ◽  
Xu Chen ◽  
...  
Keyword(s):  
Fracture Toughness ◽  
Welded Joint ◽  
Pipeline Steel ◽  
X80 Pipeline Steel

Corrosion behavior and in-situ pH monitoring of a 3% chromium low alloy pipeline steel welded joint in a CO2 environment

2019 ◽  
Vol 6 (11) ◽  
pp. 116573
Author(s):  
Jinyang Zhu ◽  
Hongting Ren ◽  
Lining Xu
Keyword(s):  
Corrosion Behavior ◽  
Welded Joint ◽  
Pipeline Steel ◽  
Ph Monitoring ◽  
Co2 Environment
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