Evolution of Corrosion Product Scales on an Acid Proof Pipeline Steel X65 MS in H2S Containing Environment

doi:10.11902/1005.4537.2015.101

Journal of Chinese Society for Corrosion and protection

2015, Vol. 35

Issue (5): 386-392 DOI: 10.11902/1005.4537.2015.101

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Evolution of Corrosion Product Scales on an Acid Proof Pipeline Steel X65 MS in H₂S Containing Environment

Yangyang DONG,Feng HUANG(

),Pan CHENG,Qian HU,Jing LIU

The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China

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Abstract

The corrosion behavior of X65 MS pipeline steel in 5%NaCl solutions with different concentrations of H₂S and pH values, and the morphology, composition and phase constituent of the corrosion product scales were investigated by means of mass-loss method, electrochemical impedance spectroscope, field emission scanning electron microscopy (FE-SEM) and X-ray diffractometer (XRD). The results showed that, in the solutions with the same pH value, the average corrosion rate of X65 MS pipeline steel increased with the increasing H₂S concentration. When the ratio [H₂S]/[H₃O⁺]<10^1.5, the average corrosion rate of the steel decreased with the increasing pH, on the contrast, which was independent to both of pH value and H₂S concentration if the ratio [H₂S]/[H₃O⁺]>10^1.5. Besides, the formed corrosion product scales on X65 MS pipeline steel were mainly composed of amorphous ferrous sulfide, iron sulfide and mackinawite, the amount of each phase varied with the pH value and H₂S concentration of the solutions. It is noted that all the corrosion product scales exhibited relatively poor protectiveness.

Key words: X65 MS pipeline steel H₂S pH corrosion product scale iron sulfides

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	Yangyang DONG
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	Jing LIU

Cite this article:

Yangyang DONG, Feng HUANG, Pan CHENG, Qian HU, Jing LIU. Evolution of Corrosion Product Scales on an Acid Proof Pipeline Steel X65 MS in H₂S Containing Environment. Journal of Chinese Society for Corrosion and protection, 2015, 35(5): 386-392.

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https://www.jcscp.org/EN/10.11902/1005.4537.2015.101 OR https://www.jcscp.org/EN/Y2015/V35/I5/386

Fig.1 Microscopic structure of the X65 MS pipeline steel

Fig.2 Schematic of the experiment device

Fig.3 Corrosion rates of X65 pipeline steel in 5%NaCl solutions as functions of concentration of H₂S and pH value

Fig.4 SME images of corrosion product film in different corrosion conditions: (a1) pH=3.5, 0.2 mmol/L H₂S; (a2) pH=3.5, 2 mmol/L H₂S; (a3) pH=3.5, 20 mmol/L H₂S; (b1) pH=4.5, 0.2 mmol/L H₂S; (b2) pH=4.5, 2 mmol/L H₂S; (b3) pH=4.5, 20 mmol/L H₂S; (c1) pH=5.5, 0.2 mmol/L H₂S; (c2) pH=5.5, 2 mmol/L H₂S ;(c3) pH=5.5, 20 mmol/L H₂S

Fig.5 XRD spectra of corrosion product films in different corrosion conditions:(a1) pH=3.5, 0.2 mmol/L H₂S; (a2) pH=3.5, 2 mmol/L H₂S; (a3) pH= 3.5, 20 mmol/L H₂S; (b1) pH=4.5, 0.2 mmol/L H₂S; (b2) pH=4.5, 2 mmol/L H₂S; (b3) pH=4.5, 20 mmol/L H₂S; (c1) pH=5.5, 0.2 mmol/L H₂S; (c2) pH=5.5, 2 mmol/L H₂S; (c3) pH=5.5, 20 mmol/L H₂S

Fig.6 EIS of X65 pipeline steel after immersion for 24 h in 5%NaCl solutions with various concentrations of H₂S anddifferent pH values of pH=3.5 (a, b), pH=4.5 (c, d) and pH=4.5 (e, f)

Table 1 Fitting values of electrochemical parameters for X65 pipeline steel in the various corrosion conditions

Fig.7 Equivalent circuit

[1]	Feng Y R, Huo C Y, Ma Q R, et al. Some aspects on west-east gas transmission pipeline steels and pipes [A]. Proc 4th Inter Pipeline Conf [C]. Calgary: American Society of Mechanical Engineers, 2002, 371
[2]	Streisselberger A, Fluess P, Bauer J, et al. Modern line pipe steels designed for sophisticated subsea projects for sweet and sour gas [A]. Proc 9th Inter Off shore and Polar Engneering Conf [C]. Brest: ISOPE, 1999, 125
[3]	Mendoza R, Alanis M, Perez R, et al. On the processing of Fe2C2Mn2Nb steels to produce plates for pipelines with sour gas resistance[J]. Mater. Sci. Eng., 2002, A337(1/2): 115
[4]	Ma Y, Cheng L, Li Q, et al. The influence of hydrogen sulfide on corrosion of iron under different conditions[J]. Corros. Sci., 2000, 42: 1669
[5]	Hernández-Espejel A, Domínguez-Crespo M A, Cabrera-Sierra R, et al. Investigations of corrosion films formed on API-X52 pipeline steel in acid sour media[J]. Corros. Sci., 2010, 52(2): 2258
[6]	Shoesmith D W, Taylor P, Bally M G, et al. The formation of ferrous monosulfide polymorphs during the corrosion of iron by aqueous hydrogen sulfide at 21 ℃[J]. J. Electrochem. Soc., 1980, 127(5): 1007
[7]	Yang G, Luo X, Gao L Q. Corrosion investigation and survey of the soil and water in the project of the transmission of natural gas from west to east[J]. Corros. Prot., 2003, 24(1): 29 (阳光, 罗心, 高立群. 西气东输沿线水土腐蚀勘测方法[J]. 腐蚀与防护, 2003, 24(1): 29)
[8]	Cui L, Li L W, Zou H, et al. Analysis of structure and performance of X52MS pipeline steel resistant to H2S corrosion produced by WISCO[J]. J. Wuhan Univ. Sci. Technol., 2014, 37(3): 170 (崔雷, 李利巍, 邹航等. 武钢耐H2S腐蚀X52MS钢组织及性能分析[J]. 武汉科技大学学报, 2014, 37(3): 170)
[9]	NACE standard TM0284 2003. Evaluation of Pipeline and Pressure Vessel Steels for Resistance to Hydrogen induced Cracking [R]. Houston: NACE International, 2003
[10]	Zeng R C,Han E-H,et al. Corrosion and Protection of Materials[M]. Beijing: Chemical Industry Press, 2006 (曾荣昌,韩恩厚等. 材料的腐蚀与防护[M]. 北京: 化学工业出版社, 2006)
[11]	Cheng X L, Ma H Y, Zhang J P, et al. Corrosion of iron in acid solutions with hydrogen sulfide[J]. Corrosion, 1998, 54: 369
[12]	Zheng Y G, Brown B, Nesic S. Electrochemical model of mild steel corrosion in a mixed H2S/CO2 aqueous environment[J]. Corrosion, 2014, 70: 351
[13]	Ma H, Cheng X L, Li G Q, et al. The influence of hydrogen sulfide on corrosion of iron under different conditions[J]. Corros. Sci., 2000, 42: 1669
[14]	Videm K, Kvarekval J. Stress corrosion cracking of 2205 duplex stainless steel in H2S-CO2 environment[J]. Corrosion, 1995, 51: 260
[15]	Sun W, Nesic S. A mechanistic model of uniform hydrogen sulfide/carbon dioxide corrosion of mild steel[J]. Corrosion, 2009, 65: 291
[16]	Guo H, He X Y, Wu Y H. Effect of H2S on corrosion behavior of X70 steel in weak acid solutions[J]. Corros. Sci. Prot. Technol.,2006, 18(4): 258 (郭红, 何晓英, 伍远辉. H2S对X70钢在弱酸性溶液中的腐蚀行为的影响[J]. 腐蚀科学与防护技术, 2006, 18(4): 258)
[17]	Castaneda H, Sosa E, Espinosa-Medina M A. Film properties and stability influence on impedance distribution during the dissolution process of low-carbon steel exposed to modified alkaline sour environment[J]. Corros. Sci., 2009, 51: 799
[18]	Vedage H, Ramanarayanan T A, Munford J D, et al. Electrochemical growth of iron sulfide films in H2S-saturated chloride media[J]. Corrosion, 1993, 49: 114
[19]	Liao X N, Cao F H, Chen A N, et al. In-situ investigation of atmospheric corrosion behavior of bronze under thin electrolyte layers using electrochemical technique[J]. Trans. Nonferrous Met. Soc. China, 2012, 22(5): 1239

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