The role of residual stress in neutral pH stress corrosion cracking of pipeline steels – Part II: Crack dormancy

2007 ◽  
Vol 55 (1) ◽  
pp. 43-53 ◽  
Author(s):  
W CHEN ◽  
G VANBOVEN ◽  
R ROGGE
Keyword(s):  
Residual Stress ◽  
Stress Corrosion ◽  
Stress Corrosion Cracking ◽  
Corrosion Cracking ◽  
Pipeline Steels ◽  
Neutral Ph ◽  
Ph Stress

scholarly journals Stress corrosion cracking of pipeline steels in near-neutral pH solutions: the role of mechanochemical and chemomechanical effects

2019 ◽  
Vol 6 (6) ◽  
pp. 1065-1085
Author(s):  
Roman I. Bogdanov ◽  
◽  
Yaakov B. Unigovski ◽  
Emmanuel M. Gutman ◽  
Iliya V. Ryakhovskikh ◽  
...  
Keyword(s):  
Stress Corrosion ◽  
Stress Corrosion Cracking ◽  
Corrosion Cracking ◽  
Pipeline Steels ◽  
Neutral Ph

Modeling the Interactions of Hydrogen, Stress and Dissolution in Near-Neutral pH Stress Corrosion Cracking of Pipelines

2006 ◽  
Author(s):  
Frank Y. Cheng
Keyword(s):  
Stress Corrosion ◽  
Dissolution Rate ◽  
Crack Growth ◽  
Anodic Dissolution ◽  
Hydrogen Concentration ◽  
Stress Corrosion Cracking ◽  
Crack Tip ◽  
Corrosion Cracking ◽  
Neutral Ph ◽  
Ph Stress

A thermodynamic model was developed to determine the interactions of hydrogen, stress and anodic dissolution at the crack-tip during near-neutral pH stress corrosion cracking in pipelines. By analyzing the free-energy of the steel in the presence and absence of hydrogen and stress, it is demonstrated that a synergism of hydrogen and stress promotes the cracking of the steel. The enhanced hydrogen concentration in the stressed steel significantly accelerates the crack growth. The quantitative prediction of the crack growth rate in near-neutral pH environment is based on the determination of the effect of hydrogen on the anodic dissolution rate in the absence of stress, the effect of stress on the anodic dissolution rate in the absence of hydrogen, the synergistic effect of hydrogen and stress on the anodic dissolution rate at the crack-tip and the effect of the variation of hydrogen concentration on the anodic dissolution rate.

Hydrogen in stress corrosion cracking of X-70 pipeline steels in near-neutral pH solutions

2006 ◽  
Vol 41 (6) ◽  
pp. 1797-1803 ◽  
Author(s):  
Bingyan Fang ◽  
En-Hou Han ◽  
Jianqiu Wang ◽  
Ziyong Zhu ◽  
We Ke
Keyword(s):  
Stress Corrosion ◽  
Stress Corrosion Cracking ◽  
Corrosion Cracking ◽  
Pipeline Steels ◽  
Neutral Ph
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