کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1581852 1514862 2008 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Simulation of spheroidisation of elongated Si-particle in Al-Si alloys by the phase-field model
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Simulation of spheroidisation of elongated Si-particle in Al-Si alloys by the phase-field model
چکیده انگلیسی
The application of the phase-field model for spheroidisation of undissolvable particles during high-temperature treatment of alloys is pointed out. Modelling of the spheroidisation of elongated Si-particles during annealing of Al-Si alloy is elaborated in this paper. The driving force for spheroidisation is the minimization of the total free-energy of the system or the minimization of the ratio between the interface areas and the particle volumes. The spheroidisation kinetics of elongated Si-particle for binary Al-Si system during homogenisation of aluminium alloys simulated by the phase-field model is demonstrated. The influences of the interface energy and the homogenisation temperature on the spheroidisation kinetics is presented. The lack of knowledge of the interface energy anisotropy between Si-particle and the aluminium phase is the only reason for using isotropic interface energy in simulations. The thermodynamic driving force for the phase transformation of the silicon into the aluminium phase is computed from the data obtained from the JMatPro software for aluminium alloys.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 496, Issues 1–2, 25 November 2008, Pages 345-354
نویسندگان
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