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首页> 外文期刊>Journal of Materials Engineering and Performance >Corrosion Behavior of Engineering Alloys in Synthetic Wastewater
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Corrosion Behavior of Engineering Alloys in Synthetic Wastewater

机译：工程合金在合成废水中的腐蚀行为

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The corrosion behavior of 1018, 410, and 800 steels exposed to synthetic wastewater have been studied using linear polarization resistance, cyclic potentiodynamic curves (CPCs), electrochemical noise (EN), and electrochemical impedance spectroscopy (EIS) tests. The conditions were: a biochemical oxygen demand of 776 ppm; a chemical oxygen demand of 1293 ppm; a pH of 8; and a cell temperature of 25 deg C. From the CPC and EN results, no localized corrosion was found for the stainless steels. However, small indications of a possible localized corrosion process were detected for the 1018 steel. The EIS results revealed that different corrosion mechanisms occurred in the carbon steel compared with the stainless steels. The results show that the corrosion mechanism strongly depends on the type of steel. Overall, the 1018 steel exhibited the highest corrosion rate, followed by the 410 alloy. The highest corrosion resistance was achieved by the 800 alloy. In addition, scanning electron microscopy analyses were carried out to explain the experimental findings.
机译：已使用线性极化电阻，循环电势曲线（CPC），电化学噪声（EN）和电化学阻抗谱（EIS）测试研究了1018、410和800暴露于合成废水中的钢的腐蚀行为。条件是：生化需氧量为776 ppm; 1293 ppm的化学需氧量; pH值为8;电池温度为25摄氏度。根据CPC和EN结果，发现不锈钢没有局部腐蚀。但是，检测到1018钢可能存在局部腐蚀过程的少量迹象。 EIS结果表明，与不锈钢相比，碳钢的腐蚀机理不同。结果表明，腐蚀机理在很大程度上取决于钢的类型。总体而言，1018钢表现出最高的腐蚀速率，其次是410合金。 800合金具有最高的耐腐蚀性。另外，进行了扫描电子显微镜分析以解释实验结果。

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