Condensation corrosion of carbon steel at low to moderate surface temperature and iron carbonate precipitation kinetics

Islam Md Mayeedul; Pojtanabuntoeng Thunyaluk; Gubner Rolf

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Condensation corrosion of carbon steel at low to moderate surface temperature and iron carbonate precipitation kinetics

机译：表面温度适中时碳钢的凝结腐蚀与碳酸铁沉淀动力学。

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This study investigates the influence of surface temperature and droplet retention time (DRT) on the corrosion rate, FeCO3 supersaturation, and scaling tendency of carbon steel exposed to water condensation. This corrosion phenomenon is also known as top of the line corrosion (TLC). TLC is found to be governed by surface temperature irrespective of water condensation rates (WCR) at low surface temperature (15 degrees C). The results also demonstrate that the DRT directly influences FeCO3 supersaturation and scale formation. A new kinetic constant for the calculation of FeCO3 precipitation rate under condensing condition at the top of the line is proposed. (C) 2016 Elsevier Ltd. All rights reserved.

机译：本研究调查了表面温度和液滴保留时间（DRT）对暴露于水冷凝的碳钢的腐蚀速率，FeCO3过饱和度和结垢趋势的影响。这种腐蚀现象也称为线顶腐蚀（TLC）。发现TLC受表面温度控制，而与低表面温度（15摄氏度）下的水凝结率（WCR）无关。结果还表明，DRT直接影响FeCO3过饱和和结垢。提出了一种新的动力学常数，用于计算冷凝条件下顶部的FeCO3沉淀速率。（C）2016 Elsevier Ltd.保留所有权利。

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来源
《Corrosion science》 |2016年第10期|139-150|共12页
作者
Islam Md Mayeedul; Pojtanabuntoeng Thunyaluk; Gubner Rolf;
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作者单位

Curtin Univ Technol, Dept Chem Engn, Sch Chem & Petr Engn, Curtin Corros Engn Ind Ctr, Bentley, WA 6102, Australia;

Curtin Univ Technol, Dept Chem Engn, Sch Chem & Petr Engn, Curtin Corros Engn Ind Ctr, Bentley, WA 6102, Australia;

Curtin Univ Technol, Dept Chem Engn, Sch Chem & Petr Engn, Curtin Corros Engn Ind Ctr, Bentley, WA 6102, Australia;

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正文语种 eng
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关键词
Carbon steel; SEM; Weight loss; CO2 corrosion; Kinetic parameters;

机译：碳钢;SEM;失重;CO2腐蚀;运动学参数;

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2. Modelling of carbon dioxide corrosion of steel with iron carbonate precipitation [J] . M. Shayegani, M. Ghorbani, A. Afshar, Corrosion Engineering, Science and Technology . 2009,第2期

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Condensation corrosion of carbon steel at low to moderate surface temperature and iron carbonate precipitation kinetics

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