کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1626401 1516442 2007 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Directional solidification and characterization of the Cd-Sn eutectic alloy
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Directional solidification and characterization of the Cd-Sn eutectic alloy
چکیده انگلیسی
The Cd-67.8 wt.% Sn eutectic alloy was prepared by melting together appropriate amounts of cadmium and tin (both of 99.99% purity) in a graphite crucible in a vacuum melting furnace. Then, this eutectic alloy was poured into graphite crucibles in a hot filling furnace and the samples were solidified. These samples were directionally solidified upward with different growth rate ranges (8.1-165 μm/s) at a constant temperature gradient G (4.35 K/mm) in the Bridgman type directional solidification furnace. The lamellar spacings were measured using directional solidified samples. The variations of λ with respect to V were determined by using linear regression analysis. The dependence of lamellar spacings λ on undercooling, ΔT, was also analysed. The variations of ΔT with V (at constant G) were investigated. According to these results, it has been found that with the increasing values of V, λ decreases, whereas, ΔT increases for a constant G. λ2V, ΔTλ and ΔTV−0.5 values were determined by using λ, ΔT and V values. The results obtained in this work have been compared with the Jackson-Hunt eutectic theory and experimental results studied by Borland and Elliott, Clark and Elliott for the same alloy system, and also the similar alloy systems studied by Çadırlı and Gündüz, Kaya et al.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 431, Issues 1–2, 4 April 2007, Pages 171-179
نویسندگان
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