کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1500589 993352 2009 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The kinetics of Fe-rich intermetallic formation in aluminium alloys: In situ observation
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
The kinetics of Fe-rich intermetallic formation in aluminium alloys: In situ observation
چکیده انگلیسی

In situ synchrotron radiography of Fe-rich intermetallic formation was performed during the solidification of an Al–7.5Si–3.5Cu–0.8Fe (wt.%) alloy. Growth kinetics was quantified by segmenting the Fe-rich intermetallic phases and nucleation temperatures were determined by extrapolating to zero size. Fe-rich β-intermetallics nucleated between 550 and 570 °C, growing initially at an instantaneous tip velocity of 100 μm s−1, and slowing to 10 μm s−1 towards the end of growth. Final plate size was controlled by local Fe concentration and α-Al impingement.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Scripta Materialia - Volume 60, Issue 7, April 2009, Pages 516–519
نویسندگان
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