Effect of CO2 partial pressure on SCC behavior of welded X80 pipeline in simulated soil solution

doi:10.11890/1006-7191-111-65

Acta Metallurgica Sinica (English Letters) ›› 2011, Vol. 24 ›› Issue (1): 65-74.DOI: 10.11890/1006-7191-111-65

Effect of CO2 partial pressure on SCC behavior of welded X80 pipeline in simulated soil solution

陈旭¹,吴明²,何川¹,肖军¹

1. 辽宁石油化工大学
2.

收稿日期:2010-06-30 修回日期:2010-10-15 出版日期:2011-02-25 发布日期:2011-02-25
通讯作者: 陈旭

Effect of CO₂ partial pressure on SCC behavior of welded X80 pipeline in simulated soil solution

Ming WU, Xu CHEN, Chuan HE, Jun XIAO

College of Petroleum Engineering, liaoning Shihua University, Fushun 113001, China

Received:2010-06-30 Revised:2010-10-15 Online:2011-02-25 Published:2011-02-25
Contact: Xu CHEN

摘要/Abstract

Abstract: The stress corrosion cracking (SCC) behavior of welded X80 pipeline steel in simulated Ku'erle soil solution was studied by means of electrochemical impedance spectroscopy (EIS) and slow strain rate tests (SSRT). The microstructure of the welded steel was observed by optical microscopy (OM). It is demonstrated that the microstructure of the weld metal consists of acicular ferrite and grain boundary ferrite, while that of heat affected zone (HAZ) is a mixture of acicular ferrite and bainitic ferrite microconstituents. The microstructure of the base steel is composed of ferrite and pearlite. The anodic dissolution of X80 pipeline steel in simulated Ku'erle soil solution could be enhanced and the SCC sensitivity increased with the increase of CO₂ partial pressure. The SCC mechanism of X80 pipeline is a mixing mechanism of hydrogen embrittlement combined with anodic dissolution, and the hydrogen embrittlement plays a leading role. The higher SCC sensitivity of the weld metal was attributed to the metallurgical transformation, local hardening and residual stress.

Key words: X80 steel, Weld metal, CO₂ partial pressure, SCC

陈旭吴明何川肖军. Effect of CO2 partial pressure on SCC behavior of welded X80 pipeline in simulated soil solution[J]. Acta Metallurgica Sinica (English Letters), 2011, 24(1): 65-74.

Ming WU, Xu CHEN, Chuan HE, Jun XIAO. Effect of CO₂ partial pressure on SCC behavior of welded X80 pipeline in simulated soil solution[J]. Acta Metallurgica Sinica (English Letters), 2011, 24(1): 65-74.

参考文献

[1] J. Li, M. Elboujdaini, M. Gao and R.W. Revie, Mater Sci Eng A 486(1) (2008) 496.

[2] Z.Y. Liu, X.G. Li, Y.R. Zhang and C.W. Du, Acta Metall Sin (Engl Lett) 22(2) (2009) 58.

[3] M.C. Li and Y.F. Cheng, Electrochim Acta 52(28) (2007) 8111.

[4] P.G. Fazzini and J.L. Otegui, Int J Pressure Vessels Piping 84(12) (2007) 739.

[5] Z.Y. Liu, X.G. Li, C.W. Du and Y.F. Cheng, Corros Sci 51(12) (2009) 2863.

[6] E. Gamboa, V. Linton and M. Law, Int J Fatigue 30(5) (2008) 850.

[7] J.Q. Wang and A. Atrens, Corros Sci 45(10) (2003) 2199.

[8] Z.Y. Liu, X.G. Li, C.W. Du, G.L. Zhai and Y.F. Cheng, Corros Sci 50(8) (2008) 2251.

[9] R.N. Parkins and S. Zhou, Corros Sci 39(1) (1997) 159.

[10] R.N. Parkins and S. Zhou, Corros Sci 39(1) (1997) 175.

[11] B.A. Harle and J.A. Beavers, Corrosion 49(10)(1993) 861.

[12] R.B. Rebak, Z. Xia and R. Safruddin, Corrosion 52(5) (1996) 396.

[13] L. Niu and Y.F. Cheng, Appl Surf Sci 253(21) (2007) 8626.

[14] B. Gu, J.L. Luo and X. Mao, Corrosion 55(1) (1999) 96.

[15] M. Puiggali, S. Rousserie and M. Touzet, Corrosion 58(11) (2002) 961.

[16] X. Liu and W. Yang, Mater Mech Eng 26(1) (2002) 5 (in Chinese).

[17] G.A. Zhang and Y.F. Cheng, Electrochim Acta 55(1) (2009) 316.

[18] G.A. Zhang and Y.F. Cheng, Corros Sci 51(8) (2009) 1714.

[19] P. Liang, X.G. Li, C.W. Du and X. Chen, Mater Des 30(5) (2009) 1712.

[20] M.C. Yan, J.Q. Wang, E.H. Han and W. Ke, Corros Eng Sci Technol 42(1) (2007) 42.

[21] Y.F. Cheng, Bull Electrochem 21(11) (2005)503.

[22] E.A. Charles and R.N. Parkins, Corrosion 51(7) (1995) 518.

[23] R. Wang, J Chin Soc Corros Prot 28(2) (2008)81 (in Chinese).

[24] L. Chen, M.Z. Liu, W.H. Su and C. Li, Acta Metall Sin 17(5) (1981) 541 (in Chinese).

[25] Y.M. Zeng, J.L. Luo and P.R. Norton, Electrochim Acta 49(5) (2004) 703.

[26] G. Van Boven, W. Chen and R. Rogge, Acta Mater 55(1) (2007) 29.

[27] Q. Yang, L.Q. Qiao and S. Chiovelli, Corrosion 54(8) (1998) 628.

[28] Y.F. Cheng, J Mater Sci 42(8) (2007) 2701.

Effect of CO2 partial pressure on SCC behavior of welded X80 pipeline in simulated soil solution

Effect of CO₂ partial pressure on SCC behavior of welded X80 pipeline in simulated soil solution

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 0

编辑推荐

Metrics

本文评价