کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1651778 | 1517343 | 2007 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Grain refinement in solidification of highly undercooled eutectic Ni–Si alloy
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Grain refinement in solidification of highly undercooled eutectic Ni–Si alloy Grain refinement in solidification of highly undercooled eutectic Ni–Si alloy](/preview/png/1651778.png)
چکیده انگلیسی
Substantial undercooling up to 550 K (0.386TE, with TE as the melting point) was achieved in eutectic Ni78.6Si21.4 alloy melt using glass fluxing combined with cyclic superheating. Accordingly, a particular refined microcrystalline morphology is obtained in the as-solidified structure. The physical mechanism of the grain refinement subjected to high undercooling is interpreted in terms of the classical nucleation theory and LKT/BCT model. It was concluded that the above refinement can be ascribed to the substantially increased nucleation rate under high undercooling.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 61, Issues 4–5, February 2007, Pages 987–990
Journal: Materials Letters - Volume 61, Issues 4–5, February 2007, Pages 987–990
نویسندگان
Yiping Lu, Feng Liu, Gencang Yang, Haipeng Wang, Yaohe Zhou,