کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1610027 | 1516266 | 2015 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Thermodynamic properties and microstructure evolution of ternary Al-10%Cu-x%Sn immiscible alloys
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
The vertical phase diagram of ternary Al-10%Cu-x%Sn (x% from 3 to 75Â wt.%) alloys is experimentally established with differential scanning calorimetry (DSC) method. The enthalpy of fusion during melting process is determined, which decreases linearly with the increase of Sn content. The undercoolability of those liquid alloys solidifying with the primary (Al) solid solution phase can be further enhanced by increasing the cooling rate. However, the increase of cooling rate has little influence on the other alloys with the preferential liquid phase separation. As Sn content rises, three kinds of liquid separation patterns are observed, which are the dispersed pattern of very fine L2(Sn) droplets distributed within primary (Al) interdendritic areas, the segregated pattern of several large L2 blocks enveloped by the Al-rich phase and the layered pattern consisting of top Al-rich zone and bottom Sn-rich zone.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 627, 5 April 2015, Pages 402-409
Journal: Journal of Alloys and Compounds - Volume 627, 5 April 2015, Pages 402-409
نویسندگان
W. Zhai, L. Hu, D.L. Geng, B. Wei,