کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1577843 1514811 2012 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of Cu addition on microstructure and corrosion behavior of spray-deposited Zn–30Al alloy
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Effect of Cu addition on microstructure and corrosion behavior of spray-deposited Zn–30Al alloy
چکیده انگلیسی

In this study, one binary Zn–30Al and three ternary Zn–30Al–Cu alloys were synthesized by the spray atomization and deposition technique. The microstructures of the spray-deposited alloys were investigated by means of scanning electron microscope (SEM), transmission electron microscope (TEM), X-ray diffraction (XRD). Immersion test, potentiodynamic polarization and electrochemical impedance measurements have been used to estimate the corrosion rate and the behavior. The results indicate that the 1 wt.% Cu addition to spray-deposited Zn–30Al alloy does not make significant change in microstructure. However, with the 2, 4 wt.% Cu additions to the alloy, some ɛ-CuZn4 compounds with particle or irregular shapes were observed on the grain boundaries in the microstructures. Immersion test and electrochemical measurements confirmed that the 1 wt.% Cu addition displays superior corrosion resistance, whereas the 2, 4 wt.% Cu additions have a baneful effect on the corrosion behavior.


► Zn–30Al–xCu alloys were synthesized by the spray atomization and deposition technique.
► Immersion test and electrochemical measurements have been used to estimate the corrosion rate and the behavior.
► The result indicates that the 1 wt.% Cu addition displays superior corrosion resistance.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 532, 15 January 2012, Pages 100–105
نویسندگان
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