کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
196475 459842 2006 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Numerical analysis of galvanic corrosion of Zn/Fe interface beneath a thin electrolyte
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Numerical analysis of galvanic corrosion of Zn/Fe interface beneath a thin electrolyte
چکیده انگلیسی

A numerical analysis of galvanic corrosion of a Zn/Fe interface beneath a thin layer electrolyte is presented. Specifically, a circular defect, where the zinc coating has been removed, is considered. It is assumed that both oxygen reduction and iron oxidation can occur on the Fe surface, while only zinc oxidation occurs on the Zn surface. The importance of electrolyte thickness and conductivity and defect radius is considered. It is assumed that the iron and zinc oxidation rates are described by a Tafel relationship. If the kinetic parameters of the oxidation reactions are known, the cathodic protection of Fe is a function of a Wagner number, the ratio of the electrolyte thickness to the defect radius, and the ratio of the radius of the defect to the outer radius of the zinc layer.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 51, Issue 16, 10 April 2006, Pages 3256–3260
نویسندگان
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