کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1635226 | 1007020 | 2006 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Crystallization kinetics of (Ni0.75Fe0.25)78-xNbxSi10B12 (x = 0, 5) amorphous alloys
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
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چکیده انگلیسی
Amorphous ribbons of (Ni0.75Fe0.25)78-xNbxSi10B12 (x = 0, 5) were prepared by a single roller melt-spinning technique in air atmosphere. The crystallization kinetics of the alloys were investigated by means of continuous heating, and the activation energies of the alloys were calculated using Kissinger plot method and Ozawa plot method on the basis of differential thermal analysis data. The crystallization products were analyzed by X-ray diffraction. After the (Ni0.75Fe0.25)78Si10B12 amorphous alloy was annealed at the temperatures 715 and 745 K, a single phase of γ-(Fe, Ni) solid solution with grain sizes of about 10.3 and 18.5 nm, respectively, precipitates in the amorphous matrix. The crystallized phases are γ-(Fe, Ni) solid solution, Fe2Si, Ni2Si, and Fe3B after annealing at 765 K. The (Ni0.75Fe0.25)73Nb5Si10B12 amorphous alloy was annealed at 720, 750, and 800 K; and the crystallization phases, γ-(Fe, Ni) solid solution, (Fe, Ni)23B6, Ni31Si12 and Nb2NiB0.16 form simultaneously.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Rare Metals - Volume 25, Issue 4, August 2006, Pages 342-348
Journal: Rare Metals - Volume 25, Issue 4, August 2006, Pages 342-348
نویسندگان
CHEN Xuedin, WEI Hengdou, WANG Xiaojun,