Corrosion Behavior of EH40 Marine Steel in Artificial Seawater at Low- and Ambient-Temperatures

doi:10.11902/1005.4537.2024.202

Journal of Chinese Society for Corrosion and protection

2025, Vol. 45

Issue (3): 620-630 DOI: 10.11902/1005.4537.2024.202

Current Issue | Archive | Adv Search

Corrosion Behavior of EH40 Marine Steel in Artificial Seawater at Low- and Ambient-Temperatures

LIU Jiabing, HUANG Shiyu, GUO Na(

), GUO Zhangwei, LIU Tao

Institute of Marine Materials Science and Engineering, College of Ocean Science and Engineering, Shanghai Maritime University, Shanghai 201306, China

Cite this article:

LIU Jiabing, HUANG Shiyu, GUO Na, GUO Zhangwei, LIU Tao. Corrosion Behavior of EH40 Marine Steel in Artificial Seawater at Low- and Ambient-Temperatures. Journal of Chinese Society for Corrosion and protection, 2025, 45(3): 620-630.

Download:

HTML

PDF(24065KB)
Export: BibTeX | EndNote (RIS)

Abstract

The corrosion behavior of EH40 marine steel was assessed by means of immersion tests in an artificial seawater at 0 and 25 ℃ for various period respectively Then the variation of corrosion rate, morphology and composition of corrosion products were characterized via electrochemical measurement, scanning electron microscope equipped with an energy dispersive spectrometer, X-ray diffractometer and X-ray photoelectron spectroscopy etc. The results indicated that during the first three days of immersion, the corrosion rate of the steel at 0 ℃ was much higher with the formation fewer pits, which may be attributed to the high dissolved oxygen concentration and the uniform coverage of corrosion products on the steel surface in the low-temperature seawater. As the immersion period extended, the corrosion rate of the steel at 25 ℃ was higher than that at 0 ℃, which may be due to the higher electrochemical activity and less protectiveness of the formed product layer on EH40 steel at 25 ℃. The main iron-containing corrosion products formed at the two temperatures were FeOOH, Fe₂O₃ and Fe₃O₄. However, in the later stages of immersion in the artificial seawater at 25 ℃, precipitates of calcium and magnesium carbonate could form, which mixed with the iron-containing corrosion products to create a corrosion product film, further deteriorating the protectiveness of the rust layer.

Key words: EH40 steel low-temperature seawater ambient-temperature seawater corrosionmechanism

Received: 07 July 2024 32134.14.1005.4537.2024.202

ZTFLH:

TG172

Fund: China Postdoctoral Science Foundation(2023M742213);Postdoctoral Fellowship Program (Grade C) of China Postdoctoral Science Foundation(GZC20231538);Natural Science Foundation of Shanghai(24ZR1427800)

Corresponding Authors: GUO Na, E-mail: naguo@shmtu.edu.cn

	Service

	E-mail this article
	Add to citation manager
	E-mail Alert
	RSS
	（）
	Articles by authors
	LIU Jiabing
	HUANG Shiyu
	GUO Na
	GUO Zhangwei
	LIU Tao

URL:

https://www.jcscp.org/EN/10.11902/1005.4537.2024.202 OR https://www.jcscp.org/EN/Y2025/V45/I3/620

Fig.1 Changes of pH (a) and DO (b) values of simulated seawater at 0 and 25 ℃ in a period of 14 d

Fig.2 Macroscopic morphology (a), histogram of corrosion rate (b), and histogram of corrosion amount (c) after immersion in seawater at 0 and 25 ℃ for 1, 3, 7 and 14 d

Fig.3 Optical photos of EH40 specimens after immersion in seawater at 0 ℃ (a-d) and 25 ℃ (e-h) for 1 d (a, e), 3 d (b, f), 7 d (c, g) and 14 d (d, h)

Fig.4 Bode (a, b) and Nyquist (c, d) plots of EH40 specimens immersed in simulated seawater at 0 ℃ (a, c) and 25 ℃ (b, d) for different time；the insets in Fig.4 (c, d) shows corresponding equivalent circuit models

Table 1 Fitting values for components used in equivalent circuits

Fig.5 SEM images and corresponding EDS spectra of EH40 specimens after immersion in seawater at 0 ℃ (a-d) and 25 ℃ (e-h) for 1 d (a, e), 3 d (b, f), 7 d (c, g) and 14 d (d, h)

Table 2 EDS element fraction of surface corrosion product film of EH40 steel sample after immersion in seawater at 0 and 25 ℃ for different time (mass fraction / %)

Fig.6 SEM cross-sectional images and corresponding EDS spectra of EH40 specimens after immersion in seawater at 0 ℃ (a) and 25 ℃ (b) for 14 d

Table 3 Mass fraction of EDS elements in the film cross-section of the corrosion product of EH40 steel sample after being immersed in seawater at 0 and 25 ℃ for 14 d (mass fraction / %)

Fig.7 XPS fine peaks of Fe 2p_3/2 of the corrosion product layers formed on EH40 specimens after immersion in seawater at 0 ℃ (a-d) and 25 ℃ (e-h) for 1 d (a, e), 3 d (b, f), 7 d (c, g) and 14 d (d, h)

Fig.8 XRD patterns of EH40 specimens after immersion in seawater at 0 ℃ (a) and 25 ℃ (b) for 1, 3, 7 and 14 d

[1]	He W J, Zhang X K, Feng X Y. A study of the impact of the arctic channel on trade between Shandong province and Northwestern Europe and North America [J]. Northern Econ. Trade, 2023, (11): 17
	何伟静, 张晓可, 封肖云. 北极航道对山东省与西北欧和北美贸易的影响 [J]. 北方经贸, 2023, (11): 17
[2]	Zhang Y, Yang W. The trade potentialities between China and the arctic countries under the background of the opening of the arctic waterway: an empirical test based on extended gravity model [J]. Ocean Dev. Manag., 2021, 38(12): 18
	张颖, 杨卫. 北极航道开通背景下中国与北极国家的贸易潜力分析——基于扩展引力模型的实证检验 [J]. 海洋开发与管理, 2021, 38(12): 18
[3]	Xie X G, Du X J. The arctic shipping security governance: multi-level governance, governance dilemma and path choice [J]. J. Ocean Univ. China (Soc. Sci. Ed.), 2022, (3): 68
	谢晓光, 杜晓杰. 北极航运安全治理: 多层治理、治理困境与路径选择 [J]. 中国海洋大学学报(社会科学版), 2022, (3): 68
[4]	Li Z F, Deng Z. Prospect of the arctic route and its impact upon the global economy and geopolitical structure [J]. J. Eurasian Econ., 2021, (2): 90
	李振福, 邓昭. 北极航线应用前景及对世界经济和地缘政治的影响 [J]. 欧亚经济, 2021, (2): 90
[5]	Cai M J, Cao W. Navigation practice and safety research of arctic northeast passage [J]. J. Transp. Inform. Saf., 2020, 38(3): 77
	蔡梅江, 曹伟. 北极东北航道航行实践与安全性研究 [J]. 交通信息与安全, 2020, 38(3): 77
[6]	Zhou L, Riska K, Ji C Y. Simulating transverse icebreaking process considering both crushing and bending failures [J]. Mar. Struct., 2017, 54: 167
[7]	Wang K, Wu L, Li Y Z, et al. Experimental study on low temperature fatigue performance of polar icebreaking ship steel [J]. Ocean Eng., 2020, 216: 107789
[8]	Cao H B, Hou G L, Xu T C, et al. Effect of seawater temperature on the corrosion and cavitation erosion-corrosion resistance of Al₁₀Cr₂₈Co₂₈Ni₃₄ high-entropy alloy coating [J]. Corros. Sci., 2024, 228: 111822
[9]	Chen X, Zhou G Z, Wang X T, et al. Progress in semiconductor materials for photocathodic protection: design strategies and applications in marine corrosion protection [J]. Chemosphere, 2023, 323: 138194
[10]	Wang R G. Influence of ultrasound on pitting corrosion and crevice corrosion of SUS304 stainless steel in chloride sodium aqueous solution [J]. Corros. Sci., 2008, 50: 325
[11]	Ma Y, Zhang Y M, Zhang R Y, et al. Microbiologically influenced corrosion of marine steels within the interaction between steel and biofilms: a brief view [J]. Appl. Microbiol. Biotechnol., 2020, 104: 515 doi: 10.1007/s00253-019-10184-8 pmid: 31807887
[12]	Ding K K, Zhang P H, Liu S T, et al. Study on the classification of seawater corrosivity of typical sea areas in China [J]. Corros. Rev., 2020, 38: 323
[13]	Tsutsumi Y, Nishikata A, Tsuru T. Pitting corrosion mechanism of Type 304 stainless steel under a droplet of chloride solutions [J]. Corros. Sci., 2007, 49: 1394
[14]	Hu J Z, Hu X, Deng P C, et al. Research progress of seawater galvanic coupling corrosion of steels [J]. Corros. Prot., 2024, 45(1): 51
	胡杰珍, 胡欣, 邓培昌等. 钢铁海水电偶腐蚀的研究进展 [J]. 腐蚀与防护, 2024, 45(1): 51
[15]	Hu J Z, Wang P L, Deng P C, et al. Research progress on anti-corrosion technology of steel in seawater immersion zone [J]. Iron Steel, 2023, 58(12): 1
	胡杰珍, 王沛林, 邓培昌等. 海水全浸区钢铁的防腐蚀技术研究进展 [J]. 钢铁, 2023, 58(12): 1 doi: 10.13228/j.boyuan.issn0449-749x.20230426
[16]	Zhang Z Q, Chen Z B, Dong Q J, et al. Galvanic corrosion behavior of low alloy steel, stainless steel and Al-Mg alloy in simulated deep sea environment [J]. J. Chin. Soc. Corros. Prot., 2022, 42: 417
	张泽群, 陈质彬, 董其娟等. 低合金钢、不锈钢和铝镁合金在模拟深海环境中的电偶腐蚀行为研究 [J]. 中国腐蚀与防护学报, 2022, 42: 417 doi: 10.11902/1005.4537.2021.166
[17]	Shen Y Y, Dong Y H, Li H D, et al. The influence of low temperature on the corrosion of EH40 steel in a NaCl solution [J]. Int. J. Electrochem. Sci., 2018, 13: 6310
[18]	Yang Y, Chen X Y, Liu Y, et al. Study on hysteretic performance of welded T-joints circular tube on platform considering seawater corrosion [J]. Ocean Eng., 2022, 259: 111942
[19]	Mao X M, Liu T, Guo N, et al. Corrosion behavior of marine low alloy steel under the condition of multi-factor coupling in simulated arctic route [J]. Surf. Technol., 2022, 51(6): 36
	毛晓敏, 刘涛, 郭娜等. 模拟北极航线多因素耦合条件下船用低合金钢的腐蚀行为 [J]. 表面技术, 2022, 51(6): 36
[20]	Al-Anezi K, Somerfield C, Mee D, et al. Parameters affecting the solubility of carbon dioxide in seawater at the conditions encountered in MSF desalination plants [J]. Desalination, 2008, 222: 548
[21]	Wang Y, Wu J J, Sun L P, et al. Corrosion of EH40 steel affected by Halomonas titanicae dependent on electron acceptors utilized [J]. Corros. Sci., 2021, 182: 109263
[22]	AlAbbas F M, Bhola S M, Spear J R, et al. The shielding effect of wild type iron reducing bacterial flora on the corrosion of linepipe steel [J]. Eng. Fail. Anal., 2013, 33: 222
[23]	Chongdar S, Gunasekaran G, Kumar P. Corrosion inhibition of mild steel by aerobic biofilm [J]. Electrochim. Acta, 2005, 50: 4655
[24]	Dang L, Luo X. Research status of metal corrosion assessment and prediction in marine environments [J]. Equip. Environ. Eng., 2024, 21(3): 88
	党乐, 罗茜. 海洋环境下金属腐蚀评估与预测研究现状 [J]. 装备环境工程, 2024, 21(3): 88
[25]	Melchers R E, Jeffrey R. Early corrosion of mild steel in seawater[J]. Corrosi. Sci, 2005, 47(7): 1678

[1]	SUN Jiayu, PENG Wenshan, XING Shaohua. Combined Effect of Stress and Dissolved Oxygen on Corrosion Behavior of Ni-Cr-Mo-V High Strength Steel[J]. 中国腐蚀与防护学报, 2024, 44(3): 755-764.
[2]	WU Jiajia, XU Ming, WANG Peng, ZHANG Dun. Impact of Nitrate Addition on EH40 Steel Corrosion in Natural Seawater[J]. 中国腐蚀与防护学报, 2023, 43(4): 765-772.

No Suggested Reading articles found!

Viewed

Full text

Abstract

Cited

Shared

Discussed