有效氯对低合金船用钢在天然海水中腐蚀行为的影响

IF 1.5 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Corrosion Engineering, Science and Technology Pub Date : 2023-05-13 DOI:10.1080/1478422X.2023.2209961

Xue Liu, Y. Sui, JianYuan Zhou, Yapeng Liu, Xiang-bo Li, Jian Hou

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引用次数: 0

摘要

摘要:由于有效氯的氧化特性，它在金属腐蚀中起着重要的作用。通过电化学试验和浸渍试验，研究了有效氯浓度对低合金船用钢腐蚀性能的影响。实验结果表明，随着海水中有效氯浓度的增加，低合金船用钢的腐蚀速度加快。随着有效氯浓度的增加，钢的局部电化学溶解更加活跃。通过能谱分析(EDS)了解腐蚀产物的组成，发现在高有效氯浓度(100 ppm)下，腐蚀产物中Cl元素大量富集。有效氯浓度对低合金船用钢力学性能的影响表明，有效氯浓度对低合金船用钢的抗拉强度和屈服强度影响较小。

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Influence of available chlorine on corrosion behaviour of low alloy marine steel in natural seawater

ABSTRACT Available chlorine is known to play a significant role in metal corrosion due to its oxidising properties. In this paper, the effect of available chlorine concentration on corrosion behaviour of the low alloy marine steel was investigated by electrochemical and immersion tests. Experimental results show that the corrosion rate of low alloy marine steel is accelerated with the increase of available chlorine concentration in seawater. The localised electrochemical dissolution of the steel is more active with the concentration of available chlorine increasing. Energy dispersive spectroscopy (EDS) was performed to understand the composition of the corrosion products that the large enrichment of Cl element occurred for the high available chlorine concentration (100 ppm) after 720 h exposure to seawater. The influence of available chlorine concentration on mechanical property of low alloy marine steel indicatesthe less impact on the tensile and yield strength of the low alloy marine steel.

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来源期刊

Corrosion Engineering, Science and Technology 工程技术-材料科学：综合

CiteScore

3.20

自引率

5.60%

发文量

审稿时长

3.4 months

期刊介绍： Corrosion Engineering, Science and Technology provides broad international coverage of research and practice in corrosion processes and corrosion control. Peer-reviewed contributions address all aspects of corrosion engineering and corrosion science; there is strong emphasis on effective design and materials selection to combat corrosion and the journal carries failure case studies to further knowledge in these areas.