کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8208169 | 1531901 | 2018 | 26 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Investigation on AlP as the heterogeneous nucleus of Mg2Si in Al-Mg2Si alloys by experimental observation and first-principles calculation
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک و نجوم (عمومی)
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چکیده انگلیسی
The microstructural evolution of primary Mg2Si in Al-20%Mg2Si with Al-3%P master alloy was observed by scanning electron microscope. And the interfacial properties of AlP/Mg2Si interface were investigated using first-principles calculations. The calculation results show that AlP(1â¯0â¯0)/Mg2Si(2â¯1â¯1) and AlP(3â¯3â¯1)/Mg2Si(1â¯1â¯0) interfaces can form steadily. P-terminated AlP(1â¯0â¯0)/Mg2Si(2â¯1â¯1) interface with the largest work of adhesion (4.13â¯J/m2) is theoretically the most stable. The interfacial electronic structure reveals that there are covalent Si-Al, Si-P and Mg-P bonds existing between AlP and Mg2Si slabs. Due to the AlP particles as effective heterogeneous nucleus of Mg2Si, primary Mg2Si particles change from dendrite to octahedron/truncated octahedron, and their sizes decrease to â¼20â¯Î¼m.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Results in Physics - Volume 8, March 2018, Pages 146-152
Journal: Results in Physics - Volume 8, March 2018, Pages 146-152
نویسندگان
Jiayue Sun, Chong Li, Xiangfa Liu, Liming Yu, Huijun Li, Yongchang Liu,