کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1811636 1025599 2011 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Microstructure evolution of undercooled Fe–Co–Cu alloys
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Microstructure evolution of undercooled Fe–Co–Cu alloys
چکیده انگلیسی

Rapid solidification of undercooled Fe–Co–Cu alloys was investigated by means of fluxing purification and cyclic superheating technique. A transition in microstructure from dendrites to phase-separation occurred above a phase-separation undercooling ΔTsep. When ΔT<ΔTsep, dendrite was observed, the trunks were rich in Fe and Co, while Cu was rich at inter-dendrites. However, the phase-separated microstructure was obtained once ΔT>ΔTsep, with a large sphere of L1 phase located almost at the center of the sample and enwrapped by L2 phase. ΔTsep was 222, 88 and 45 K for Fe50Co30Cu20, Fe25Co25Cu50 and Fe15Co15Cu70 alloys in this work, respectively. It was investigated that L1 phase solidified before L2 phase after liquid separation and followed different ways.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B: Condensed Matter - Volume 406, Issue 4, 15 February 2011, Pages 957–962
نویسندگان
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