RELATIONSHIP BETWEEN HIGH pH STRESS CORROSION CRACKING MECHANISMS AND APPLIED POTENTIALS OF X80 PIPELINE STEEL

2013 ◽  
Vol 49 (6) ◽  
pp. 689 ◽  
Author(s):  
Lin FAN ◽  
Zhiyong LIU ◽  
Cuiwei DU ◽  
Xiaogang LI
Keyword(s):  
Stress Corrosion ◽  
Stress Corrosion Cracking ◽  
Pipeline Steel ◽  
Corrosion Cracking ◽  
X80 Pipeline Steel ◽  
High Ph ◽  
Ph Stress ◽  
Cracking Mechanisms

Characteristics and Mechanism of High pH Stress Corrosion Cracking of Pipeline Steel X70

2007 ◽  
Vol 353-358 ◽  
pp. 219-222 ◽  
Author(s):  
Guang Fu Li ◽  
Guo Liang Zhang ◽  
Jian Jiang Zhou ◽  
Chun Bo Huang ◽  
Wu Yang
Keyword(s):  
Stress Corrosion ◽  
Stress Corrosion Cracking ◽  
Pipeline Steel ◽  
Corrosion Cracking ◽  
High Ph ◽  
Ph Stress

External Stress Corrosion Cracking Risk Factors of High Grade Pipeline Steel

2020 ◽  
Vol 993 ◽  
pp. 1270-1276
Author(s):  
Li Xia Zhu ◽  
Jin Heng Luo ◽  
Gang Wu ◽  
Li Feng Li ◽  
Lei Li ◽  
...  
Keyword(s):  
Stress Corrosion ◽  
Stress Corrosion Cracking ◽  
Pipeline Steel ◽  
Steel Grade ◽  
Corrosion Cracking ◽  
High Grade ◽  
Soil Environment ◽  
Applied Potential ◽  
X80 Pipeline Steel ◽  
High Ph

The influence weights of various sensitive factors, such as steel grade, applied potential, temperature and soil environment, on stress corrosion cracking behavior of high-grade pipeline steel were studied by means of orthogonal test at mixed level and slow strain rate test. The stress corrosion behavior of X80 pipeline steel in near neutral and high pH simulated soil solution under overprotection potential was observed by SEM. The results showed that the applied potential has the greatest weight on stress corrosion index of ISSRT, followed by temperature, steel grade and soil environment. X80 pipeline steel exhibits high stress corrosion sensitivity in near-neutral and high pH simulated soil solutions at applied potential of -1500mV, and its SCC mechanism is hydrogen embrittlement (HE). This study can provide guidance for practical engineering application of pipeline steel.

scholarly journals Effects of Load Interactions on the Onset of Stage Two of High pH Stress Corrosion Cracking

2021 ◽  
Author(s):  
Hamid Niazi ◽  
Shidong Wang ◽  
Lyndon Lamborn ◽  
Reg Eadie ◽  
Weixing Chen ◽  
...  
Keyword(s):  
Stress Corrosion ◽  
Stress Corrosion Cracking ◽  
Corrosion Cracking ◽  
High Ph ◽  
Ph Stress
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