کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1606162 | 1516215 | 2016 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Titanium diboride precipitation in Fe79.7âxTixB20Nb0.3 glassy ribbons
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Titanium diboride precipitation in Fe79.7âxTixB20Nb0.3 glassy ribbons Titanium diboride precipitation in Fe79.7âxTixB20Nb0.3 glassy ribbons](/preview/png/1606162.png)
چکیده انگلیسی
The microstructure of Fe79.7âxTixB20Nb0.3 glassy ribbons has been investigated using transmission electron microscopy (TEM) and energy dispersive X-ray spectroscopy (EDX), for a titanium content of x = 12, 16, 18 and 20 at.%. With x = 12, the ribbon is found to be amorphous, with no sign of crystallinity. EDX mapping within the amorphous matrix, shows that iron and titanium are separated into iron-rich cells and titanium-rich inter-cellular channels. From x = 16, all samples contain nanocrystals embedded within the amorphous matrix. Using EDX, the nanocrystals are shown to be titanium-rich, and using electron diffraction and JEMS simulation, they are shown to be titanium diboride (TiB2). High resolution TEM investigation, in conjunction with Single Crystal software, confirms this. The size of the nanocrystals, and their phase fraction, are measured and found to increase with Ti concentration.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 678, 5 September 2016, Pages 486-493
Journal: Journal of Alloys and Compounds - Volume 678, 5 September 2016, Pages 486-493
نویسندگان
L.C. Whitmore, G. Ababei, L.C. Budeanu, N. Lupu, H. Chiriac,