کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1280396 | 1497683 | 2006 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of the heating rate on crystallization behavior of mechanically alloyed Mg50Ni50 amorphous alloy
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Effect of the heating rate on crystallization behavior of mechanically alloyed Mg50Ni50 amorphous alloy Effect of the heating rate on crystallization behavior of mechanically alloyed Mg50Ni50 amorphous alloy](/preview/png/1280396.png)
چکیده انگلیسی
The mechanical alloying is the most convenient method to produce Mg-Ni alloys. In this study, the effect of ball-to-powder weight ratios and the mechanical alloying time on amorphization of Mg50Ni50 alloy and its thermal stabilities were investigated. Mg50Ni50 alloy has been produced by using Spex 8000 D mixer/mill with different ball-to-powder weight ratios (5:1, 10:1, 20:1). Amorphization times by XRD analysis are found to be 60 h for 5:1 ball-to-powder weight ratio, 10 h for 10:1 ball-to-powder weight ratio and 5 h for 20:1 ball-to-powder weight ratio. The thermal stabilities of amorphous Mg50Ni50 alloys, obtained by different ball-to-powder weight ratios, have been determined and the effect of heating rates on the crystallization temperatures have also been investigated by DSC. The heating rates employed were 5, 10, 15, 20 °C/min. During the first crystallization reaction, the amorphous and Mg2Ni intermetallic phases occurred. DSC studies show that increase in heating rates increased the crystallization temperatures for all samples. The apparent activation energies were determined by means of the Kissinger method.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 31, Issue 15, December 2006, Pages 2266-2273
Journal: International Journal of Hydrogen Energy - Volume 31, Issue 15, December 2006, Pages 2266-2273
نویسندگان
Nedret Aydinbeyli, Osman Nuri Celik, Hakan Gasan, Kerem Aybar,