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The empirical prediction of weight change and corrosion rate of low-carbon steel

机译：低碳钢重量变化和腐蚀速率的经验预测

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Understanding the corrosion rate of metallic building materials is very important to maximize their beneficial use of public facilities. Direct measurements of the weight change and corrosion rate would be time consuming and expensive. This study aims to develop new empirical models based on the experimental data of testing 25 specimens immersed in five different environments for predicting the weight change and corrosion rate of the low-carbon steel. Using the equation developed based on the correlation between corrosion rate and chloride ion concentration is able to predict the corrosion rate of low-carbon steel at the limited chloride ion concentration. An increase in the trend lines of plotting the modeled and measured weight change of low-carbon steel versus immersion time is very similar to each other and progressively increase with increasing of the NaCl concentration. The corrosion rate of low-carbon steel increases from 0.202 to 0.286 mm/y with increasing of the NaCl concentration from 0 to 5% (w/w) in aqueous solution. The weight change and corrosion rate of the steel material are predicted using the new empirical models to contribute to the most reliable applications of low-carbon steel building materials in the future.
机译：了解金属建筑材料的腐蚀速率非常重要，可以最大限度地利用公共设施。重量变化和腐蚀速率的直接测量将是耗时和昂贵的。本研究旨在基于测试25种样品的实验数据开发新的实证模型，浸入五种不同的环境中，以预测低碳钢的重量变化和腐蚀速率。使用基于腐蚀速率和氯离子浓度之间的相关性开发的等式能够在有限氯离子浓度下预测低碳钢的腐蚀速率。绘制低碳钢与浸渍时间的模型和测量的重量变化的趋势线的增加与彼此非常相似，随着NaCl浓度的增加而逐渐增加。低碳钢的腐蚀速率从0.202至0.286mm /毫/毫升增加，随着水溶液中的0至5％（w / w）的增加。使用新的经验模型预测钢材的重量变化和腐蚀速率，以促进未来低碳钢材建筑材料最可靠的应用。

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