生物膜在镀锌钢的成熟过程对其腐蚀行为的影响：通过 EIS 的长期评估。
Impact of biofilm in the maturation process on the corrosion behavior of galvanized steel: long-term evaluation by EIS.
机构信息
Faculty of Science, Department of Biology, Istanbul University, Vezneciler, 34134, Istanbul, Turkey.
Faculty of Chemistry-Metallurgy, Metallurgical and Materials Engineering Department, Yildiz Technical University, Esenler, 34210, Istanbul, Turkey.
出版信息
World J Microbiol Biotechnol. 2019 Jan 17;35(2):22. doi: 10.1007/s11274-019-2592-2.
In this study, the effect of biofilm in the maturation process on the corrosion behavior of galvanized steel was investigated in a model of a recirculating water system over 6 months. Electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization methods were used to determine the corrosion behavior of galvanized steel. The biofilm and corrosion products on the galvanized steel surfaces were investigated by using scanning electron microscopy (SEM) and energy dispersive X-ray spectrometry (EDS). EIS results showed that the structure of the biofilm changed during the maturation process over time and the altering structure of the biofilm affects the corrosion behavior of galvanized steel. Also, EIS analyses validated that the biofilm has a dynamic and complex structure. The data obtained from SEM and macroscopic images indicated that EIS is an effective method for monitoring the biofilm-development process.
在这项研究中，通过一个为期 6 个月的循环水系统模型，研究了生物膜在成熟过程对镀锌钢腐蚀行为的影响。电化学阻抗谱（EIS）和动电位极化方法被用来确定镀锌钢的腐蚀行为。使用扫描电子显微镜（SEM）和能谱（EDS）研究了镀锌钢表面的生物膜和腐蚀产物。EIS 结果表明，生物膜的结构随着时间的推移在成熟过程中发生了变化，生物膜结构的变化会影响镀锌钢的腐蚀行为。此外，EIS 分析验证了生物膜具有动态和复杂的结构。SEM 和宏观图像获得的数据表明，EIS 是监测生物膜生长过程的一种有效方法。
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