Stress corrosion cracking behavior of X80 pipeline steel under alternating current, Desulfovibrio desulfurican and cathodic protection potential

Qi Fu; Qingyu Qin; Boxin Wei; Jin Xu; Changkun Yu; Cheng Sun

Journal of Materials Research and Technology (May 2023)

Stress corrosion cracking behavior of X80 pipeline steel under alternating current, Desulfovibrio desulfurican and cathodic protection potential

Qi Fu,
Qingyu Qin,
Boxin Wei,
Jin Xu,
Changkun Yu,
Cheng Sun

Affiliations

Qi Fu: School of Materials Science and Engineering, University of Science and Technology of China, Shenyang, 110016, China; Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China
Qingyu Qin: School of Materials Science and Engineering, University of Science and Technology of China, Shenyang, 110016, China; Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China; SAIC GM Wuling Automobile Co. Ltd., Liuzhou, 545007, China
Boxin Wei: School of Materials Science and Engineering, University of Science and Technology of China, Shenyang, 110016, China; Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China; Liaoning Shenyang Soil and Atmosphere Corrosion of Material National Observation and Research Station, Shenyang, 110016, China; Corresponding author.
Jin Xu: School of Materials Science and Engineering, University of Science and Technology of China, Shenyang, 110016, China; Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China; Liaoning Shenyang Soil and Atmosphere Corrosion of Material National Observation and Research Station, Shenyang, 110016, China; Corresponding author.
Changkun Yu: Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China; Liaoning Shenyang Soil and Atmosphere Corrosion of Material National Observation and Research Station, Shenyang, 110016, China
Cheng Sun: School of Materials Science and Engineering, University of Science and Technology of China, Shenyang, 110016, China; Institute of Metal Research, Chinese Academy of Sciences, Shenyang, 110016, China; Liaoning Shenyang Soil and Atmosphere Corrosion of Material National Observation and Research Station, Shenyang, 110016, China; Corresponding author.

Journal volume & issue: Vol. 24
pp. 7732 – 7744

Abstract

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The stress corrosion cracking (SCC) behavior of X80 pipeline steel under Desulfovibrio desulfurican (D. desulfurican), alternating current (AC) and cathodic protection (CP) was studied by the constant load tests and slow strain rate tensile (SSRT) test. The results showed that both AC interference and relatively negative CP potential aggravated pitting corrosion and enhanced the SCC susceptibility under the constant load. In the saline soil environment containing D. desulfurican, the AC greatly contributed to the cracking tendency of X80 pipeline steel and resulted in the safe CP range that was too narrow for practical engineering application, thus requiring appropriate discharge methods.

Published in Journal of Materials Research and Technology

ISSN: 2238-7854 (Print); 2214-0697 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Technology: Mining engineering. Metallurgy
Website: https://www.journals.elsevier.com/journal-of-materials-research-and-technology/

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