添加双氧水对高强度低合金钢在海水中<BR>腐蚀影响的研究

中国腐蚀与防护学报

2013, Vol. 33

Issue (3): 205-210

本期目录 | 过刊浏览

添加双氧水对高强度低合金钢在海水中
腐蚀影响的研究

杨超^1,2 张慧霞² 郭为民² 付玉彬¹

1. 中国海洋大学材料科学与工程研究院青岛 266100;
2. 中船重工七二五所海洋腐蚀与防护国家重点实验室青岛 266101

Effects of H₂O₂ Addition on Corrosion Behavior of High-strength Low-alloy Steel in Seawater

YANG Chao^1,2, ZHANG Huixia², GUO Weimin², FU Yubin¹

1. Institute of Materials Science and Engineering, Ocean University of China, Qingdao 266100,China;
2. State Key Laboratory for Marine Corrosion and Protection, Luoyang Ship Material Research Institute, Qingdao 266101, China

全文: PDF(809 KB)

摘要: 通过动电位极化、激光Raman光谱、XRD和旋转环盘电极实验研究了高强度低合金钢在天然海水和含有0.01 mol/L H₂O₂的海水中的腐蚀规律，探讨了高强度低合金钢在加速体系与天然海水中的腐蚀机理。结果表明，添加H₂O₂使高强度低合金钢的自腐蚀电位正移、析氢电位负移、极限扩散电流密度增大，但锈层的相组成与天然海水中锈层组成相同。在2种体系中，钢的氧还原过程均为二电子反应控制过程。H₂O₂的添加明显加快了高强度低合金钢的腐蚀速率，但是不改变材料腐蚀机理。

关键词 ：高强度低合金钢, 加速腐蚀实验, H₂O₂, 旋转圆盘电极, 腐蚀机理

Abstract：The corrosion behavior of high-strength low-alloy steel in natural seawater without and with 0.01 mol/L H₂O₂ was investigated by electrochemical polarization, Raman spectroscopy, X-ray diffraction (XRD) and rotating ring-disk electrode (RDE) experiment. The corrosion mechanism of the steel in each solution was discussed. The results showed that the free corrosion potential and limited diffusion current density of the steel increased obviously due to the addition of H₂O₂ in seawater, meanwhile the hydrogen-evolution potential also shifted negatively. The phase constituents of the rust layer in two solutions were almost the same, and the oxygen reduction process of the steel in two solutions was controlled by the two-electronic reaction. In conclusion, the addition of H₂O₂ could efficiently accelerate the corrosion rate of the steel in natural seawater, but could not change its corrosion mechanism.

Key words： high-strength low-alloy steel accelerated corrosion experiment H₂O₂ rotating ring-disk electrode corrosion mechanism

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引用本文:

杨超^, 张慧霞郭为民付玉彬. 添加双氧水对高强度低合金钢在海水中
腐蚀影响的研究[J]. 中国腐蚀与防护学报, 2013, 33(3): 205-210.
. Effects of H₂O₂ Addition on Corrosion Behavior of High-strength Low-alloy Steel in Seawater. Journal of Chinese Society for Corrosion and protection, 2013, 33(3): 205-210.

链接本文:

https://www.jcscp.org/CN/ 或 https://www.jcscp.org/CN/Y2013/V33/I3/205

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