کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9567661 | 1503719 | 2005 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Inhibition of steel pitting corrosion in HCl by some inorganic anions
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Inhibition of steel pitting corrosion in HCl by some inorganic anions Inhibition of steel pitting corrosion in HCl by some inorganic anions](/preview/png/9567661.png)
چکیده انگلیسی
The effect of Mn and V content on corrosion behavior of mild steel in different concentration of HCl was investigated. The increase of Mn and V content in the steel sample leads to increasing corrosion resistance. The effect of phosphate, molybedate and chromate anions on the corrosion of steel in HCl solution has been studied using weight loss, potentiodynamic and scanning electron microscope (SEM) techniques. The addition of increasing concentrations of phosphate, molybedate and chromate anions causes a shift of the pitting potential (Epit) in the positive direction, indicating the inhibitive effect of the added anions on the pitting attack. The phosphate anion has a stronger inhibitive effect of the pitting corrosion. The inhibition efficiency (IE) of different inhibitors increases with the increasing of phosphate concentration and decreases with the increasing the concentration of molybedate and chromate anions. The presence of these anions inhibits the pitting corrosion of steel samples in the order phosphate > molybedate > chromate. The effect of different inorganic anions on the corrosion behavior of two different composition steel samples was also studied in HCl solution.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Surface Science - Volume 240, Issues 1â4, 15 February 2005, Pages 396-404
Journal: Applied Surface Science - Volume 240, Issues 1â4, 15 February 2005, Pages 396-404
نویسندگان
S.A.M. Refaey,