کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5351342 | 1503657 | 2014 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Inhibition of the Cu65/Zn35 brass corrosion by natural extract of Camellia sinensis
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Inhibition of the Cu65/Zn35 brass corrosion by natural extract of Camellia sinensis Inhibition of the Cu65/Zn35 brass corrosion by natural extract of Camellia sinensis](/preview/png/5351342.png)
چکیده انگلیسی
In this work, the corrosion inhibition of brass was studied using natural plant extract, Camellia sinensis, in 0.1Â M Na2SO4 solutions with pH 7 and pH 4. Electrochemical techniques (potentiodynamic polarization, electrochemical impedance spectroscopy) and scanning electron microscopy (SEM) were applied to study the brass corrosion behavior in presence and absence of the extract. The results indicated that the extract is a very effective corrosion inhibitor for brass corrosion process in both the acidic and neutral media by virtue of adsorption. The inhibition effect increases by time as demonstrated by the EIS monitoring for 120Â h. In the blank solution the corrosion process leads to the formation of a dark oxide patina at pH 7 and induces localized corrosion morphology at pH 4. The extract presence can avoid both the dark patina and the pits formation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 307, 15 July 2014, Pages 209-216
Journal: Applied Surface Science - Volume 307, 15 July 2014, Pages 209-216
نویسندگان
Tambi Ramde, Stefano Rossi, Caterina Zanella,