کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1445964 | 1509614 | 2014 | 16 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Phase-field modeling of coring during solidification of Au–Ni alloy using quaternions and CALPHAD input
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Phase-field modeling of coring during solidification of Au–Ni alloy using quaternions and CALPHAD input Phase-field modeling of coring during solidification of Au–Ni alloy using quaternions and CALPHAD input](/preview/png/1445964.png)
چکیده انگلیسی
A numerical method for the simulation of microstructure evolution during the solidification of an alloy is presented. The approach is based on a phase-field model including a phase variable, an orientation variable given by a quaternion, the alloy composition and a uniform temperature field. Energies and diffusion coefficients used in the model rely on thermodynamic and kinetic databases in the framework of the CALPHAD methodology. The numerical approach is based on a finite volume discretization and an implicit time-stepping algorithm. Numerical results for solidification and accompanying coring effect in a Au–Ni alloy are used to illustrate the methodology.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Acta Materialia - Volume 62, January 2014, Pages 89–104
Journal: Acta Materialia - Volume 62, January 2014, Pages 89–104
نویسندگان
J.-L. Fattebert, M.E. Wickett, P.E.A. Turchi,