کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1527271 1511856 2007 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effects of grain refinement on the rheological behaviors of semisolid hypoeutectic Al–Si alloys
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Effects of grain refinement on the rheological behaviors of semisolid hypoeutectic Al–Si alloys
چکیده انگلیسی

The paper experimentally investigated the effects of grain refinement on the rheological response of Al and hypoeutectic Al–Si alloys. Selected refiners included K2TiF6, K2TiF6 plus graphite and Al–5Ti–B. The apparent viscosity of semisolid Al alloys was measured during solidification. Samples at different solid fractions were quenched to observe the microstructure. It was found that grain refinement drastically lowered the apparent viscosity of Al–Si alloys. Among selected refiners, the effect of Al–5Ti–B was the best. The effect of K2TiF6 plus graphite was better than that of K2TiF6. Silicon contents in Al alloys affected the apparent viscosity. With increasing silicon content the apparent viscosity decreased, resulted from promotion of silicon to both refining effects of titanium and boron.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Chemistry and Physics - Volume 104, Issues 2–3, 15 August 2007, Pages 267–270
نویسندگان
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