Influence of Water Velocity on Marine Immersion Corrosion of Mild Steel

R. E. Melchers; R. Jeffrey

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Influence of Water Velocity on Marine Immersion Corrosion of Mild Steel

机译：Influence of Water Velocity on Marine Immersion Corrosion of Mild Steel

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The rate of immersion corrosion is known to increase with water velocity. This has been demonstrated in laboratory conditions under short-term exposures. There are very few field data or longer-term exposure results. The present paper reports new field data for immersion corrosion under coastal tidal conditions with a peak velocity of approx 1.0 m/s. It was found that velocity increases the rate of corrosion nonlinearly, but not in the manner predicted by earlier investigations for mild steel. The reasons for this appear to be related to the degree of protection offered to the corroding surface by corrosion products and biofouling. Once sufficient protection is obtained, velocity appears to have little direct further effect.

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来源
《Corrosion: The Journal of Science and Engineering》 |2004年第1期|84-94|共11页
作者
R. E. Melchers; R. Jeffrey;
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作者单位

Centre for Infrastructure Performance and Reliability, School of Engineering, The University of Newcastle, Australia 2308;

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原文格式 PDF
正文语种英语
中图分类金属腐蚀与保护、金属表面处理;
关键词
carbon steel; corrosion rate; immersion testing; seawater; steel; velocity;

Influence of Water Velocity on Marine Immersion Corrosion of Mild Steel

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