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
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Thermodynamic properties and microstructure evolution of ternary Al-10%Cu-x%Sn immiscible alloys
چکیده انگلیسی
The vertical phase diagram of ternary Al-10%Cu-x%Sn (x% from 3 to 75 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
نویسندگان
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