Abstract: By introducing magnetic field into the extending surface area process, combined with SDBS as corrosion inhibitor, the effect of magnetohydrodynamics (MHD) on corrosion inhibition performance and specific capacitance of etched foils is studied in detail. The crystalline phase, the surface/cross-section morphology, distribution of S element and corrosion resistance quality of samples were characterized and analyzed by means of XRD, SEM, EDS, Tafel curve and EIS (electrochemical impedance spectra). The results show that MHD effect increases the mass transfer rate of DBS-/NO3- to the etched foil surface/hole in electrolyte, the surface adsorption capacity and distribution uniformity of SDBS. Meanwhile, the NO3- content in etched hole, the average hole depth and specific surface area are also obviously improved. The corrosion inhibition efficiency of the optimal foil sample increases up to 62.36% as well as the high specific capacitance 65.39 μF·cm-2. Compared to the etched foil without MHD, its corrosion inhibition efficiency increases by 15.10%, accompanying by 10.03% increment of specific capacitance.
赵静, 王天鹏, 张淮浩. 磁场作用下十二烷基苯磺酸钠对阳极铝箔的缓蚀性能及比电容的影响[J]. 材料导报, 2020, 34(6): 6156-6160.
ZHAO Jing, WANG Tianpeng, ZHANG Huaihao. Effect of SDBS Coupled with Magnetic Field on Corrosion Inhibition Performance and Specific Capacitance of Anodic Aluminum Foil. Materials Reports, 2020, 34(6): 6156-6160.
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2020, Vol. 34 
