کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6612792 | 459590 | 2014 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Simulated and measured response of oxygen SECM-measurements in presence of a corrosion process
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Simulated and measured response of oxygen SECM-measurements in presence of a corrosion process Simulated and measured response of oxygen SECM-measurements in presence of a corrosion process](/preview/png/6612792.png)
چکیده انگلیسی
The aim of this work is to clarify the local impact of the O2 measurement and the undesired effect on the corrosion process. By means of numerical simulation the variations of the anodic and cathodic currents on the aluminum substrate, as well as concentration profiles, are obtained. The multi-ion transport and reaction model (MITReM) is used considering the homogeneous reactions taking place in the solution, transport of species dominating the corrosion process and the electrochemical reactions. The model case study in this work is corrosion of pure aluminum in chloride solution. We concluded that amperometric O2 SECM measurements lead to a local increase of the solution pH and decrease of partial current densities for O2 reduction on the metal. This influence becomes significant when the distance to the substrate and when the size of the active surface is comparable with the size of the SECM probe.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 146, 10 November 2014, Pages 556-563
Journal: Electrochimica Acta - Volume 146, 10 November 2014, Pages 556-563
نویسندگان
L.C. Abodi, Y. Gonzalez-Garcia, O. Dolgikh, C. Dan, D. Deconinck, J.M.C. Mol, H. Terryn, J. Deconinck,