海洋干湿交替环境中HCO<sub>3</sub><sup>-</sup>浓度对X100钢腐蚀行为的影响

doi:10.11896/cldb.19110211

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Abstract With the development of oil and gas resources in the South China Sea, the mileage of offshore pipeline has increased rapidly. However, the harsh marine environment causes corrosion of oil and gas pipeline steel, especially in marine CO₂ systems. The rapid increase of CO₂ emissions has led to HCO₃^- and CO₃^2- concentrations in marine systems increased, and has become one of the important factors affected the corrosion of metallic materials in marine structures. In this paper, we had established a simulated dry-wet cycling accelerated corrosion test mo-del, and the electrochemical test and slow strain rate tensile test installations within the thin liquid layer were purposed, to test the X100 steels corrosion behavior in dry-wet cycling environments with different HCO₃^-. The corrosion morphology and phase composition of the sample surface were characterized using SEM and XRD methods, and revealed the effect of HCO₃^- concentration changes on the corrosion mechanism of X100 steel in the dry-wet cycling environment. The research results show that the corrosion rate of X100 steel showed a rapid increased and then a slow increased as the HCO₃^- concentration increases under simulated marine dry-wet cycling conditions. The stress corrosion sensitivity (SCC) increases with increasing HCO₃^- concentration in the thin liquid layer, and the fracture morphology gradually exhibits brittle fracture. The electrochemical corrosion cathode reaction is suppressed with the high HCO₃^- concentration, but under the action of the Bockris mechanism, the HCO₃^- dissociation reaction provides an additional hydrogen source for the electrochemical cathode reaction, and increasing the electrochemical corrosion rate and SCC of the sample.

Key words： X100 steel marine wet-dry cycling electrochemical corrosion stress corrosion cracking HCO₃^- corrosion mechanism

Published: 24 December 2020

CLC number:

TE988

Fund:This work was financially supported by the National Natural Science Foundation of China (51574147).

About author:: Wanting Jing is studying at Liaoning Shihua University since September 2017, is a postgraduate student. She is mainly engaged in the research of the corrosion behavior of oil and gas pipeline steel.
Ming Wu received his Ph.D. degree in materials from Northeast University in 1997. He awarded the “May 1st” Labor Medal of Liaoning Province in 2005, and was selected as the “Hundred Talents Level of the New Century Multi-Million Talent Project” in Liaoning Pro-vince and the “Special Government Allowance” issued by the State Council in 2008. He won twice of the first prize of scientific and technological progress in Liaoning Province.

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Cite this article:

JING Wanting,WU Ming. Effect of HCO₃^- on Corrosion Behaviour of X100 Steel in Marine Dry-wet Cycling Environment[J]. Materials Reports, 2020, 34(24): 24138-24144.

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http://www.mater-rep.com/EN/10.11896/cldb.19110211 OR http://www.mater-rep.com/EN/Y2020/V34/I24/24138

1 Liu G X, Wu M, Jia F R, et al. Journal of Cleaner Production, 2018, 195, 593.
2 Liu G X, Wu M, Jia F R, et al. Journal of Cleaner Production, 2019, 209, 40.
3 Raven J A, Falkowski P G. Plant, Cell & Environment, 1999, 22(6), 741.
4 Xue F, Wei X, Dong J, et al. Journal of Materials Science & Technology, 2018, 34(8), 1349.
5 Eliyan F F, Alfantazi A. Corrosion Engineering, Science and Technology, 2015, 50(3), 178.
6 Liu Z, Gao X, Du L, et al. Applied Surface Science, 2018, 440, 974.
7 Eliyan F F, Mahdi E S, Alfantazi A. Corrosion Science, 2012, 58, 181.
8 Eliyan F F, Mohammadi F, Alfantazi A. Corrosion Science, 2012, 64, 37.
9 Eliyan F F, Alfantazi A. Materials Chemistry and Physics, 2013, 140(2-3), 508.
10 Han J, Carey J W, Zhang J. International Journal of Greenhouse Gas Control, 2011, 5(4), 777.
11 Han J, Zhang J, Carey J W. International Journal of Greenhouse Gas Control, 2011, 5(6), 1680.
12 Linter B R, Burstein G T. Corrosion Science, 1999, 41(1), 117.
13 Zhang G A, Cheng Y F. Electrochimica Acta, 2009, 55(1), 316.
14 Fu A Q, Cheng Y F. Corrosion Science, 2010, 52(7), 2511.
15 Huang H, Dong Z, Chen Z, et al. Corrosion Science, 2011, 53(4), 1230.
16 Li C, Ma Y, Li Y, et al. Corrosion Science, 2010, 52(11), 3677.
17 Helgeson H C. American Journal of Science, 1969, 267(7), 729.
18 Wang P, Anderko A, Young R D. Fluid Phase Equilibria, 2002, 203(1), 141.
19 Springer R D, Wang P, Anderko A. SPE Journal, 2015, 20(5), 1120.
20 Wright R F, Brand E R, Ziomek-Moroz M, et al. Electrochimica Acta, 2018, 290, 626.
21 Bockris J O M, Drazic D, Despic A R. Electrochimica Acta, 1961, 4(2), 325.
22 Hu S, Liu L, Cui Y, et al. Corrosion Science, 2019, 146, 202.
23 Pandarinathan V, Lepková K, Van Bronswijk W. Corrosion Science, 2014, 85, 26.
24 Bourdoiseau J A, Jeannin M, Sabot R, et al. Corrosion Science, 2008, 50(11), 3247.
25 Hanesch M. Geophysical Journal International, 2009, 177(3), 941.