کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8000811 1516277 2014 29 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effects of iron on intermetallic compound formation in scandium modified Al-Si-Mg Alloys
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Effects of iron on intermetallic compound formation in scandium modified Al-Si-Mg Alloys
چکیده انگلیسی
In general, iron has a strong tendency to dissolve in molten aluminum. Iron has very low solid solubility in aluminum-silicon casting alloys, so it will form intermetallic compounds that cause detrimental effects on mechanical properties. In this work, the effects of iron on intermetallic compound formations in scandium modified Al-Si-Mg alloys were studied. There were two levels of iron addition (0.2 and 0.4 wt.%) and two levels of scandium addition (0.2 and 0.4 wt.%). We found that the effects of scandium modification decreased with increasing iron addition. The morphologies of the complex intermetallic compounds were characterized by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS) and electron backscatter diffraction (EBSD) techniques. It was found that scandium changes the morphology of Fe-rich intermetallic compounds from β-phase (plate-like) to α-phase, which reduces the harmful effects of β-phase.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 616, 15 December 2014, Pages 198-207
نویسندگان
, ,