Galvanic Corrosion Behavior of Low Alloy Steel, Stainless Steel and Al-Mg Alloy in Simulated Deep Sea Environment

doi:10.11902/1005.4537.2021.166

Journal of Chinese Society for Corrosion and protection

2022, Vol. 42

Issue (3): 417-424 DOI: 10.11902/1005.4537.2021.166

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Galvanic Corrosion Behavior of Low Alloy Steel, Stainless Steel and Al-Mg Alloy in Simulated Deep Sea Environment

ZHANG Zequn, CHEN Zhibin, DONG Qijuan, WU Cong, LI Zongxin, WANG Hezu, WU Fei, ZHANG Bowei(

), WU Junsheng(

)

Institute of Advance Materials and Technology, University of Science and Technology Beijing, Beijing 100083, China

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Abstract

The galvanic corrosion behavior of 9XX low-alloy steel, 316L stainless steel and Al-Mg 5083-H116 alloy in a simulated 3000-meter deep sea environment was studied by means of observation of macroscopic morphology, 3D confocal microscope, and scanning electron microscope. The results show that the galvanic corrosion tendency between 9XX low-alloy steel and 316L stainless steel is relatively high, and the corrosion is more serious. The potential difference between 5083 alloy and 316L stainless steel is large, but the corrosion of 5083 alloy coupled with 316L stainless steel is relatively light because of the formation of dense protective film on the surface of two alloys; 316L stainless steel exhibits excellent corrosion resistance due to the formation of protective oxide film on the surface.

Key words: deep-sea simulation 9XX low-alloy steel 316L stainless steel 5083-H116 Al-Mg alloy galvanic corrosion

Received: 14 July 2021

ZTFLH:

TG174

Fund: National Natural Science Foundation of China(51901018);China Association for Science and Technology Young Talents Project(2019QNRC001);Fundamental Scientific Research Business Expenses of Central Universities(06500119)

Corresponding Authors: ZHANG Bowei,WU Junsheng E-mail: bwzhang@ustb.edu.cn;wujs@ustb.edu.cn

About author: WU Junsheng, E-mail: wujs@ustb.edu.cn
ZHANG Bowei, E-mail: bwzhang@ustb.edu.cn

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	Zequn ZHANG
	Zhibin CHEN
	Qijuan DONG
	Cong WU
	Zongxin LI
	Hezu WANG
	Fei WU
	Bowei ZHANG
	Junsheng WU

Cite this article:

ZHANG Zequn, CHEN Zhibin, DONG Qijuan, WU Cong, LI Zongxin, WANG Hezu, WU Fei, ZHANG Bowei, WU Junsheng. Galvanic Corrosion Behavior of Low Alloy Steel, Stainless Steel and Al-Mg Alloy in Simulated Deep Sea Environment. Journal of Chinese Society for Corrosion and protection, 2022, 42(3): 417-424.

URL:

https://www.jcscp.org/EN/10.11902/1005.4537.2021.166 OR https://www.jcscp.org/EN/Y2022/V42/I3/417

Fig.1 Specific configuration of galvanic experiment

Fig.2 Macromorphologies of 9XX -316L (a), 5083-9XX (b) and 5083-316L (c) after the experiment

Fig.3 Macromorphologies of cathode and anode of 9XX-316L (a), 5083-9XX (b) and 5083-316L (c) after the experiment

Fig.4 3D corrosion morphologies of anode 9XX of 9XX-316L (a), anode 5083 of 5083-9XX (b) and anode 5083 of 5083-316L (c) after the experiment

Fig.5 Surface morphologies (a~c) and EDS energy spectrum (e) in Fig.5d of anode in 9XX-316L

Fig.6 Surface morphologies (a~c) and EDS energy spectrum (e) in Fig.6d of anode in 5083-9XX and 5083-316L

Fig.7 Microscopic corrosion morphologies of anode (a~c) and cathode (d~f) in 9XX-316L

Fig.8 Microscopic corrosion morphologies of anode (a~c) and cathode (d~f) in 5083-9XX

Fig.9 Microscopic corrosion morphologies of anode (a~c) and cathode (d~f) in 5083-316L

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	张博威，北京科技大学腐蚀与防护中心副教授，硕士生导师。长期从事材料海洋腐蚀和先进海洋防护涂层等方面的理论与应用研究。先后主持参与了国家自然科学基金、国防科工等多个国家及省部级项目。以第一作者或通讯作者发表高水平论文20余篇，H因子27。担任“国家材料腐蚀与防护科学数据中心”京津冀分中心副主任，“天津材料环境腐蚀教育部野外科学观测研究站”副主任，CSTM-FC92金属材料腐蚀与防护领域委员会常务副秘书长，国际期刊《International Journal of Minerals, Metallurgy and Materials》学科编辑和青年编委等。2018年入选全国博管会国际交流计划引进项目，2019年入选中国科协第五届“青年人才托举工程”，2021年获中国腐蚀与防护学会杰出青年学术成就奖。

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