Atmospheric Corrosion in the Tropics: The Costa Rican Central Valley Case

IF 1.1 Q4 ELECTROCHEMISTRY

Portugaliae Electrochimica Acta Pub Date : 2022-01-01 DOI:10.4152/pea.2022400602

J. Rodríguez-Yáñez, R. Brenes-Brenes, R. Jimenez-Salas, M. Abdalah-Hernández, J. Sanabria-Chinchilla

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Abstract

The Western Central Valley (WCV) of Costa Rica is an area of interest, due to its high concentration of population and economic activity, presenting itself as a tropical monsoon-type atmospheric basin (AB), with well-defined climatic seasons (dry and rainy). The present study proposes the assessment of low carbon steel (CS) atmospheric corrosion, based on ISO 9223 (2012) and associated standards. A general analysis of the atmospheric basin effect was initially performed on these data, followed by the basic modeling of air pollutants and meteorological parameters. The WCV is an area of low contamination, which corresponds to a C2 or C3 category, according to ISO 9223. It mainly shows significant climatic seasons (dry and rainy) effects on the initial corrosion rates, but obtaining similar annual corrosion results for them. The ISO 9223 annual atmospheric corrosion model overestimated the actual obtained corrosion values, whereas linear or logarithmic models gave better results, especially when time and/or time of wetness (TOW) were considered as variables. ISO 9223 and ISO 9225.

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热带地区的大气腐蚀:哥斯达黎加中央山谷案例

哥斯达黎加的西部中央山谷(WCV)是一个令人感兴趣的地区，因为它的人口和经济活动高度集中，表现为热带季风型大气盆地(AB)，具有明确的气候季节(干季和雨季)。本研究提出了基于ISO 9223(2012)和相关标准的低碳钢(CS)大气腐蚀评估。首先对这些数据进行了大气盆地效应的一般分析，然后对空气污染物和气象参数进行了基本模拟。根据ISO 9223, WCV是低污染区域，对应于C2或C3类别。主要表现为气候季节(干旱和雨季)对初始腐蚀速率的显著影响，但二者的年腐蚀结果相似。ISO 9223年大气腐蚀模型高估了实际获得的腐蚀值，而线性或对数模型给出了更好的结果，特别是当时间和/或湿润时间(TOW)被视为变量时。ISO 9223和ISO 9225。

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来源期刊

Portugaliae Electrochimica Acta ELECTROCHEMISTRY-

CiteScore

2.30

自引率

16.70%

发文量

期刊介绍： Portugaliae Electrochimica Acta is a bi-monthly Journal published by the Portuguese Electrochemical Society since 1983. Portugaliae Electrochimica Acta publishes original papers, brief communications, reviews and letters concerned with every aspect of theory and practice of electrochemistry, as well as articles in which topics on history, science policy, education, etc. in the electrochemical field (teaching or research) may be discussed.