کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1548283 997730 2014 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Phase-field simulation of dendrite growth in the presence of lateral constraints
ترجمه فارسی عنوان
شبیهسازی میدان فاز رشد دندریت در حضور محدودیتهای جانبی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
چکیده انگلیسی

The effect of a sudden change in the crossing section on the microstructural evolution as well as solute and heat diffusions during solidification of the Ni-40.8% Cu alloy was investigated by implementing a non-isothermal phase-field model. Simulations with lateral constraints of different sizes were carried out to study the changes of the dendritic growth manner. Significant changes in microstructures had been observed as the interface encountered a sharply reduced crossing section; a cellular–dendrite transition could be achieved with lateral constraints, and the tip velocity significantly changed during the development of dendrite microstructures, and also, lateral constraints of different sizes had different effects on changes of the tip positions as well as tip velocities during the dendritic growing through constraints, which agreed well with experimental results.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Progress in Natural Science: Materials International - Volume 24, Issue 3, June 2014, Pages 291–294
نویسندگان
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