کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1639695 1517038 2009 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Formation and corrosion behavior of Fe-based amorphous metallic coatings prepared by detonation gun spraying
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Formation and corrosion behavior of Fe-based amorphous metallic coatings prepared by detonation gun spraying
چکیده انگلیسی

Amorphous metallic coatings with a composition of Fe48Cr15Mo14C15B6Y2 were prepared by detonation gun spraying process. Microstructural studies show that the coatings present a densely layered structure typical of thermally sprayed deposits with the porosity below 2%. Both crystallization and oxidation occurred obviously during spraying process, so that the amorphous fraction of the coatings decreased to 54% compared with fully amorphous alloy ribbons of the same component. Corrosion behavior of the amorphous coatings was investigated by electrochemical measurement. The results show that the coatings exhibit extremely wide passive region and low passive current density in 3.5% NaCl (mass fraction) and 1 mol/L HCl solutions, which illustrates excellent ability to resist localized corrosion.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Transactions of Nonferrous Metals Society of China - Volume 19, Supplement 3, December 2009, Pages s634-s638