Fracture and Structural Integrity e-ISSN 1971-8993 Open access
Environmentally Assisted Fracture Vol. 13, No. 50 (2019)

Stress corrosion behavior of X80 pipeline steel in natural seawater with different dissolved oxygen

Author and affiliation details
  • Xiaoguang Huang China University of Petroleum(East China)
  • Zhongying Han Corresponding author hanzhying@upc.edu.cn
DOI
10.3221/IGF-ESIS.50.03
Pages
21-28
Published
Published inVol. 13, No. 50 (2019)Go to the issue

Abstract

Slow strain rate stress corrosion test of X80 steel in the natural seawater are carried out to study to effect of dissolved oxygen on the sensitivity of stress corrosion. Scanning electron microscope (SEM) combined electrochemical measurement are adopted to analyze mechanism and the influencing factor of stress corrosion cracking. The results show that the sensitivity of SCC in the natural seawater increases, and the stress corrosion cracking gradually transforms from ductile to quasi-brittle fracture, with the increase of dissolved oxygen. Tafle polarization and electrochemical impedance spectroscopy of X80 show that dissolved oxygen aggravates electrochemical corrosion and reduces corrosion resistance. Corrosion pits and micro cracks at the lateral and fracture surface trigger stress concentration and promote anodic dissolution under stress, thereby accelerate the process of stress corrosion cracking of X80 steel in the seawater.

Keywords

Article history

  1. ReceivedUntil the next stage: 24 days
  2. Revision requestedUntil the next stage: 31 days
  3. RevisedUntil the next stage: 32 days
  4. AcceptedUntil the next stage: 3 days
  5. Published

How to cite

APA

Huang, X., & Han, Z. (2019). Stress corrosion behavior of X80 pipeline steel in natural seawater with different dissolved oxygen. Fracture and Structural Integrity, 13(50), 21–28. https://doi.org/10.3221/IGF-ESIS.50.03

IEEE

X. Huang and Z. Han, “Stress corrosion behavior of X80 pipeline steel in natural seawater with different dissolved oxygen,” Fracture and Structural Integrity, vol. 13, no. 50, pp. 21–28, 2019, doi: 10.3221/IGF-ESIS.50.03.

MLA

Huang, Xiaoguang, and Zhongying Han. “Stress corrosion behavior of X80 pipeline steel in natural seawater with different dissolved oxygen.” Fracture and Structural Integrity, vol. 13, no. 50, 2019, pp. 21–28. https://doi.org/10.3221/IGF-ESIS.50.03.

Chicago

Huang, Xiaoguang, and Zhongying Han. 2019. “Stress corrosion behavior of X80 pipeline steel in natural seawater with different dissolved oxygen.” Fracture and Structural Integrity 13 (50): 21–28. https://doi.org/10.3221/IGF-ESIS.50.03.

Harvard

Huang, X. and Han, Z. (2019) ‘Stress corrosion behavior of X80 pipeline steel in natural seawater with different dissolved oxygen’, Fracture and Structural Integrity, 13(50), pp. 21–28. doi: 10.3221/IGF-ESIS.50.03.

Vancouver

Huang X, Han Z. Stress corrosion behavior of X80 pipeline steel in natural seawater with different dissolved oxygen. Fracture and Structural Integrity. 2019;13(50):21-28. doi:10.3221/IGF-ESIS.50.03

BibTeX

@article{huang2019, author = {Huang, Xiaoguang and Han, Zhongying}, title = {Stress corrosion behavior of X80 pipeline steel in natural seawater with different dissolved oxygen}, journal = {Fracture and Structural Integrity}, year = {2019}, volume = {13}, number = {50}, pages = {21--28}, doi = {10.3221/IGF-ESIS.50.03}, url = {https://doi.org/10.3221/IGF-ESIS.50.03}, issn = {1971-8993} }

RIS

TY - JOUR AU - Huang, Xiaoguang AU - Han, Zhongying TI - Stress corrosion behavior of X80 pipeline steel in natural seawater with different dissolved oxygen JO - Fracture and Structural Integrity T2 - Fracture and Structural Integrity PY - 2019 DA - 2019/07/10 VL - 13 IS - 50 SP - 21 EP - 28 DO - 10.3221/IGF-ESIS.50.03 UR - https://doi.org/10.3221/IGF-ESIS.50.03 SN - 1971-8993 ER -

Licence

Copyright © 2019 Xiaoguang Huang, Zhongying Han.

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