کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1601490 | 1005200 | 2007 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
MD study of the glass transition in binary liquid metals: Ni6Cu4 and Ag6Cu4
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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 structure, thermodynamic and kinetic evolution of the binary Ni6Cu4 and Ag6Cu4 liquids during a rapid cooling process were studied in detail by using the molecular dynamics (MD) simulation method. The Gibbs free-energy difference between the supercooled liquid and the crystal (ÎGlc) for the pure metals Ni and Ag and for alloys Ni6Cu4 and Ag6Cu4 is calculated. A time-temperature-nucleation diagram for Ni6Cu4 is constructed based on the temperature dependence of the characteristic relaxation times. The results indicate that the driving force for the crystallization ÎGlc plays an important role in the glass transition process. The increase of the metallic glass forming ability (GFA) is in consistent with the decrease of ÎGlc.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Intermetallics - Volume 15, Issue 10, October 2007, Pages 1361-1366
Journal: Intermetallics - Volume 15, Issue 10, October 2007, Pages 1361-1366
نویسندگان
J. Liu, J.Z. Zhao, Z.Q. Hu,