Effect of Hydrostatic Pressure on Corrosion Behavior of X70 Steel in Simulated Sea Water

doi:10.11902/1005.4537.2020.061

Journal of Chinese Society for Corrosion and protection

2021, Vol. 41

Issue (3): 307-317 DOI: 10.11902/1005.4537.2020.061

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Effect of Hydrostatic Pressure on Corrosion Behavior of X70 Steel in Simulated Sea Water

LIN Zhaohui, MING Nanxi, HE Chuan, ZHENG Ping, CHEN Xu(

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School of Petroleum Engineering, Liaoning Petrochemical University, Fushun 113001, China

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Abstract

The influence of hydrostatic pressure on the corrosion behavior of X70 steel in simulated sea water was studied in the pressure range of 0~3 MPa by means of high temperature and high pressure reaction kettle, mass loss measurement, electrochemical means and slow strain tensile method, as well as XRD, SEM and EDS. The results showed that X70 steel suffered from localized corrosion and the main component of the corrosion product was FeOOH in the pressure range of 0~2 MPa. When the hydrostatic pressure was 3 MPa, the corrosion morphology turned to be general corrosion, and a small amount of Fe₃O₄ appeared in addition to FeOOH in the corrosion product. With the increase of hydrostatic pressure, the corrosion rate of X70 steel increased first and then decreased, and reached the maximum by 2 MPa. When the hydrostatic pressure was in the range of 0~2 MPa, the stress corrosion cracking (SCC) sensitivity of X70 steel increased with the increasing pressure, whereas, as the pressure increase up to 3 MPa, the SCC sensitivity decreased. The SCC sensitivity of X70 steel in the simulated sea water depended on the pitting degree on the steel surface, but not necessarily have a positive correlation to the hydrostatic pressure. With the increase of hydrostatic pressure, the anodic dissolution of X70 steel surface was promoted, and more hydrogen atoms were promoted to enter the steel. The SCC process of X70 steel in the simulated sea water could be ascribed to a mixed mechanism controlled by both anodic dissolution and hydrogen induced cracking.

Key words: X70 steel marine environment hydrostatic pressure electrochemical behavior stress corrosion cracking

Received: 07 April 2020

ZTFLH:

TG147

Fund: Chunhui Program of the Ministry of Education of China and the Key Project of Education Department of Liaoning Province of China(L2017LZD004)

Corresponding Authors: CHEN Xu E-mail: cx0402@sina.com

About author: CHEN Xu, E-mail: cx0402@sina.com

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Cite this article:

LIN Zhaohui, MING Nanxi, HE Chuan, ZHENG Ping, CHEN Xu. Effect of Hydrostatic Pressure on Corrosion Behavior of X70 Steel in Simulated Sea Water. Journal of Chinese Society for Corrosion and protection, 2021, 41(3): 307-317.

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https://www.jcscp.org/EN/10.11902/1005.4537.2020.061 OR https://www.jcscp.org/EN/Y2021/V41/I3/307

Fig.1 Microstructure of X70 steel

Fig.2 Schematic diagram of sample used in slow strain rate tensile test

Fig.3 Corrosion rate of X70 steel in 3.5%NaCl solution under different hydrostatic pressures

Fig.4 Corrosion morphologies of X70 steel in 3.5%NaCl solution under 0 MPa (a), 1 MPa (b), 2 MPa (c) and 3 MPa (d) hydrostatic pressures

Fig.5 XRD patterns of X70 steel after 168 h corrosion in 3.5%NaCl solution under different hydrostatic pressures

Fig.6 SEM images (a1~d1) and EDS results (a2~d2) of X70 steel after 168 h corrosion in 3.5%NaCl solution under various hydrostatic pressures of 0 MPa (a), 1 MPa (b), 2 MPa (c) and 3 MPa (d)

Fig.7 SEM images of X70 steel after immersion in 3.5%NaCl solution under 0 MPa (a), 1 MPa (b), 2 MPa (c), 3 MPa (d) hydrostatic pressures and then removing the corrosion products

Fig.8 Polarization curves of X70 steel in 3.5% NaCl solution under different hydrostatic pressures

Table 1 Fitting parameters of polarization curves of X70 steel under various hydrostatic pressures

Fig.9 Nyqusit (a), phase angle (b) and |Z^{|-f (c) diagrams of X70 steel in 3.5%NaCl solution under different hydrostatic pressures}

Fig.10 Equivalent circuit diagrams of EIS for X70 steel under the conditions of 0, 1 MPa (a) and 2, 3 MPa (b)

Table 2 Fitting results of EIS of X70 steel under different hydrostatic pressures

Fig.11 SSRT curves of X70 steel under different hydrostatic pressures

Fig.12 Elongation (δ%) and reduction of area (ψ%) of X70 steel under different hydrostatic pressures

Fig.13 Fracture morphologies of X70 steel under 0 MPa (a), 1 MPa (b), 2 MPa (c) and 3 MPa (d) hydrostatic pressures

Fig.14 Side fracture morphologies of X70 steel under 0 MPa (a), 1 MPa (b), 2 MPa (c) and 3 MPa (d) hydrostatic pressures

1	Liu Z Y, Wan H X, Li C, et al. Comparative study on corrosion of X65 pipeline steel welded joint in simulated shallow and deep sea environment [J]. J. Chin. Soc Corros. Prot., 2014, 34: 321
	刘智勇, 万红霞, 李禅等. X65钢焊接接头在模拟浅表海水和深海环境中的腐蚀行为对比 [J]. 中国腐蚀与防护学报, 2014, 34: 321
2	Wang G F, Chen X, Gao F J, et al. Corrosion mechanism of X70 pipeline steel in different Cl^- concentration [J]. Hot Work. Technol., 2015, 44(22): 34
	王冠夫, 陈旭, 高凤姣等. X70管线钢在不同浓度Cl^-溶液中腐蚀机理研究 [J]. 热加工工艺, 2015, 44(22): 34
3	Li H L. Developing pulse and prospect of oil and gas transmission pipe [J]. Welded Pipe Tube, 2004, 27(6): 1
	李鹤林. 油气输送钢管的发展动向与展望 [J]. 焊管, 2004, 27(6): 1
4	Chen G M. Inspection and repair optimization of offshore structure for cracks [J]. J. Univ. Petroleum, China, 2000, 24(5): 73
	陈国明. 海洋结构裂纹检测与维修优化 [J]. 中国石油大学学报 (自然科学版), 2000, 24(5): 73
5	Hou J, Guo W M, Deng C L. Influences of deep sea environmental factors on corrosion behavior of carbon steel [J]. Equip. Environ. Eng., 2008, 5(6): 82
	侯健, 郭为民, 邓春龙. 深海环境因素对碳钢腐蚀行为的影响 [J]. 装备环境工程, 2008, 5(6): 82
6	Cao P, Zhou T T, Bai X Q, et al. Research progress on corrosion and protection in deep-sea environment [J]. J. Chin. Soc. Corros. Prot., 2015, 35: 12
	曹攀, 周婷婷, 白秀琴等. 深海环境中的材料腐蚀与防护研究进展 [J]. 中国腐蚀与防护学报, 2015, 35: 12
7	Yang Z X, Kan B, Li J X, et al. Hydrostatic pressure effects on corrosion behavior of X70 pipeline steel in a simulated deep-sea environment [J]. J. Electroanal. Chem., 2018, 822: 123
8	Bhosle N B, Wagh A B. The effect of organic matter associated with the corrosion products on the corrosion of mild steel in the Arabian Sea [J]. Corros. Sci., 1992, 33: 647
9	Al-Fozan S A, Malik A U. Effect of seawater level on corrosion behavior of different alloys [J]. Desalination, 2008, 228: 61
10	Beccaria A M, Poggi G, Arfelli M, et al. The effect of salt concentration on nickel corrosion behaviour in slightly alkaline solutions at different hydrostatic pressures [J]. Corros. Sci., 1993, 34: 989
11	Beccaria A M, Poggi G, Castello G. influence of passive film composition and sea water pressure on resistance to localised corrosion of some stainless steels in sea water [J]. Br. Corros. J., 1995, 30: 283
12	Hamdy A S, Beccaria A M, Temtchenko T. Corrosion protection of AA6061 T6 by fluoropolymer coatings in NaCl solution [J]. Surf. Coat. Technol., 2002, 155: 176
13	Beccaria A M, Poggi G. Influence of hydrostatic pressure on pitting of aluminium in sea water [J]. Br. Corros. J., 1985, 20: 183
14	Beccaria A M, Fiordiponti P, Mattogno G. The effect of hydrostatic pressure on the corrosion of nickel in slightly alkaline solutions containing Cl^-ions [J]. Corros. Sci., 1989, 29: 403
15	Yang Y G, Zhang T, Shao Y W, et al. Effect of hydrostatic pressure on the Corrosion behaviour of Ni-Cr-Mo-V high strength steel [J]. Corros. Sci., 2010, 52: 2697
16	Yang Y G, Zhang T, Shao Y W, et al. New understanding of the effect of hydrostatic pressure on the corrosion of Ni-Cr-Mo-V high strength steel [J]. Corros. Sci., 2013, 73: 250
17	Liu B, Zhang J, Zhang T, et al. Influence of deep-sea environment on corrosion behavior of pure nickel-Ⅱ-stochastic analysis approaches to pitting of pure nickel under hydrostatic pressure [J]. Corros. Sci. Prot. Technol., 2010, 22: 85
	刘斌, 张杰, 张涛等. 深海环境对纯镍腐蚀行为的影响Ⅱ-利用随机分析方法研究纯镍在静水压力下的点蚀行为 [J]. 腐蚀科学与防护技术, 2010, 22: 85
18	Yang Z X, Kan B, Li J X, et al. Pitting initiation and propagation of X70 pipeline steel exposed to chloride-containing environments [J]. Materials, 2017, 10: 1076
19	Sun H J, Liu L, Li Y, et al. Effect of hydrostatic pressure on the corrosion behavior of a low alloy steel [J]. J. Electrochem. Soc., 2013, 160: C89
20	Sun H J, Liu L, Li Y, et al. The performance of Al-Zn-In-Mg-Ti sacrificial anode in simulated deep water environment [J]. Corros. Sci., 2013, 77: 77
21	Ding K K, Fan L, Guo W M, et al. Deep sea corrosion behavior of typical metal materials and research hotspot discussion [J]. Equip. Environ. Eng., 2019, 16(1): 117
	丁康康, 范林, 郭为民等. 典型金属材料深海腐蚀行为规律与研究热点探讨 [J]. 装备环境工程, 2019, 16(1): 117
22	Du C W, Li X G, Liu Z Y, et al. Stress corrosion cracking susceptibility of X70 steel in simulation deep sea environment [A]. Conference Record of 2014 Marine Materials Corrosion and Protection Conference [C]. Beijing, 2014
	杜翠薇, 李晓刚, 刘智勇等. X70钢在模拟深海环境中的应力腐蚀开裂敏感性研究 [A]. 海洋材料腐蚀与防护大会 [C]. 北京, 2014
23	Zhang T, Yang Y G, Shao Y W, et al. A stochastic analysis of the effect of hydrostatic pressure on the pit corrosion of Fe–20Cr alloy [J]. Electrochim. Acta, 2009, 54: 3915
24	Luo Y Y. CNOOC: completed the independent laying of the longest submarine pipeline in China [J]. Petrol. Knowl, 2018, (2): 22
	骆秧秧. 中国海油: 完成我国最长海底管线自主铺设 [J]. 石油知识, 2018, (2): 22
25	Sun H J, Liu L, Li Y, et al. Corrosion behavior of a high strength low alloy steel under hydrostatic pressure in deep ocean [A]. Conference Record of the 6th China Corrosion Conference Yinchuan [C]. Yinchuan, 2011
	孙海静, 刘莉, 李瑛等. 低合金高强度钢在深海静水压力环境中腐蚀行为的研究 [A]. 第六届全国腐蚀大会论文集 [C]. 银川, 2011
26	Li J, Chen X, Li B W, et al. Effect of CO₂ partial pressure on corrosion of 20 steel in oil-gas gathering and transporting [J]. J. Mater. Sci. Eng., 2018, 36: 589
	李建, 陈旭, 李博文等. 20钢在集输系统中不同CO₂分压下的腐蚀行为 [J]. 材料科学与工程学报, 2018, 36: 589
27	Liu Z Y, Jia J H, Du C W. Corrosion behavior of X80 and X52 steels in simulated seawater environments [J]. J. Chin. Soc. Corros. Prot., 2014, 34: 327
	刘智勇, 贾静焕, 杜翠薇. X80和X52管线钢在模拟海水环境中的腐蚀行为与规律 [J]. 中国腐蚀与防护学报, 2014, 34: 327
28	Yao X F, Xie F Q, Wu X Q, et al. Effects of Cl^- concentration on stress corrosion cracking behaviors of super 13Cr tubing steels [J]. Mater. Rev., 2012, 26(18): 28
	姚小飞, 谢发勤, 吴向清等. Cl^-浓度对超级13Cr油管钢应力腐蚀开裂行为的影响 [J]. 材料导报, 2012, 26(18): 28
29	Song B Q, Chen X, Ma G Y, et al. Effect of SRB on SCC behaviour of X70 pipeline steel and its weld joint in near-neutral pH solution [J]. Trans. Mater. Heat Treat., 2016, 37(4): 122
	宋博强, 陈旭, 马贵阳等. SRB对X70钢及其焊缝在近中性pH溶液中SCC行为的影响 [J]. 材料热处理学报, 2016, 37(4): 122
30	Chen X, Wu M, He C, et al. Effect of applied potential on SCC of X80 pipeline steel and its weld joint in Ku'erle soil simulated solution [J]. Acta Metall. Sin., 2010, 46: 951
	陈旭, 吴明, 何川等. 外加电位对X80钢及其焊缝在库尔勒土壤模拟溶液中SCC行为的影响 [J]. 金属学报, 2010, 46: 951
31	Rhouma A B, Sidhom H, Braham C, et al. Effects of surface preparation on pitting resistance, residual stress, and stress corrosion cracking in austenitic stainless steels [J]. J. Mater. Eng. Perform., 2001, 10: 507
32	Zhu M, Du C W, Li X G, et al. Effect of AC on stress corrosion cracking behavior and mechanism of X80 pipeline steel in carbonate/bicarbonate solution [J]. Corros. Sci., 2014, 87: 224
33	Wang H T, Han E-H. Simulation of metastable corrosion pit development under mechanical stress [J]. Electrochim. Acta, 2013, 90: 128
34	Yang Z X. Study of corrosion and stress corrosion cracking of X70 pipeline steel in simulated deep-sea environment [D]. Beijing: University of Beijing Science and Technology China, 2017
	杨子旋. X70钢在模拟深海环境中腐蚀及应力腐蚀行为研究[D]. 北京: 北京科技大学, 2017
35	Moayed M H, Newman R C. The relationship between pit chemistry and pit geometry near the critical pitting temperature [J]. J. Electrochem. Soc., 2006, 153: B330
36	Yang Z X, Kan B, Li J X, et al. A statistical study on the effect of hydrostatic pressure on metastable pitting corrosion of X70 pipeline steel [J]. Materials, 2017, 10: 1307
37	Xiong X L, Tao X, Zhou Q J, et al. Hydrostatic pressure effects on hydrogen permeation in A514 steel during galvanostatic hydrogen charging [J]. Corros. Sci., 2016, 112: 86

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