کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1674656 1518091 2006 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Improved corrosion behavior of nanocrystalline Cu–20Zr films in HCl solution
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Improved corrosion behavior of nanocrystalline Cu–20Zr films in HCl solution
چکیده انگلیسی

Nanocrystalline Cu–20Zr (wt.%) films were obtained from the cast master alloy by magnetron sputtering. Potentiodynamic polarization, electrochemical impedance spectroscopy, and scanning electron microscopy were employed to characterize the corrosion behavior of the sputtered nanocrystalline Cu–20Zr films and the corresponding cast Cu–20Zr alloy in HCl aqueous solutions with various concentrations (0.1, 0.5 and 1.0 mol L− 1). Results showed that the corrosion resistance of the sputtered nanocrystalline Cu–20Zr films is superior to that of the cast Cu–20Zr alloy. The improvement of the corrosion resistance through nanocrystallization is explained by (i) the formation of a continuous Cu-rich layer at the corrosion potential, and (ii) the formation of a copper–chloride complex layer in the potential range for simultaneous dissolution of Cu and Zr.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin Solid Films - Volume 510, Issues 1–2, 3 July 2006, Pages 197–202
نویسندگان
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