Sulﬁde Stress Cracking Resistance of High Strength Low Alloy Steel

Ji Hao Cheng; Yi Qiang Sun

doi:10.4028/www.scientific.net/AMR.573-574.1182

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 573-574Sulﬁde Stress Cracking Resistance of High Strength...

Sulﬁde Stress Cracking Resistance of High Strength Low Alloy Steel

Abstract:

This paper analyzed the HSLA pipeline steel’s stress corrosion behavior and mechanism which tested in the saturated solution of H2S. The steel’s SSCC susceptibility was determined by constant load tensile according to NACE TM-0177 standard. Used SEM observed the fracture, and then the steel’s corrosion rate and short-term corrosion behavior were analyzed by electrochemical polarization curves in saturated solution of H2S in the environment A. The results show that the steel has a large SSCC susceptibility and a high corrosion rate. What’s more, corrosion rate increases with the increase of immersion time. The results also show that the crack fracture of the steel is caused by anodic dissolution and the hydrogen which penetrates into the steel can increase the anodic dissolution.

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Periodical:

Advanced Materials Research (Volumes 573-574)

Pages:

1182-1186

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.573-574.1182

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Online since:

October 2012

Authors:

Ji Hao Cheng, Yi Qiang Sun

Keywords:

Anodic Dissolution, HSLA Pipeline Steel, Sulfide Stress Corrosion Cracking

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