کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9783049 | 1511868 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Inhibiting action of phenylthiourea towards iron-based metallic glass corrosion in acid environment
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The influence exerted by phenylthiourea (PTU) towards the corrosion of Fe79B16Si5 metallic glass in deaerated 0.1N H2SO4 was investigated by direct-current (potentiodynamic polarization) and alternating-current (impedance spectroscopy) techniques. The inhibiting action found on the Fe79B16Si5 glassy alloy was compared to the corresponding one obtained on annealed polycrystalline Armco iron and on a previously tested Fe81B13.5Si3C2 amorphous alloy. The inhibitor film formed more rapidly and was more protective and stable on the amorphous alloys than on polycrystalline iron and a PTU concentration as low as 10â5Â M was sufficient to build instantaneously an efficient film on the surfaces of the metallic glasses. On these surfaces, a greater amount of PTU was chemisorbed than on the crystalline iron, an effect which leads to a more complete and protective film.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volume 92, Issues 2â3, 15 August 2005, Pages 403-407
Journal: Materials Chemistry and Physics - Volume 92, Issues 2â3, 15 August 2005, Pages 403-407
نویسندگان
A. Frignani, C. Monticelli, F. Zucchi, G. Trabanelli,