کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1484030 | 1510519 | 2008 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Synthesis and characterization of a multicomponent Fe-based bulk amorphous alloy Synthesis and characterization of a multicomponent Fe-based bulk amorphous alloy](/preview/png/1484030.png)
A new bulk metallic glass (BMG) Fe60B15Zr10Co7Mo5.5Y2Si0.5 was synthesized by Cu mold casting. The alloy was characterized by X-ray diffraction (XRD), differential scanning calorimetry (DSC), scanning electron microscopy (SEM) and energy dispersive spectrometry (EDS) techniques. The thermal stability and glass-forming ability (GFA) of the alloy have been discussed by evaluating a number of thermal parameters. The maximum values of the key thermal parameters like Trg (Tg/Tm, Tg/Tl), γ, δ and β parameters were found to be ∼(0.66, 0.64), 0.407, 1.84 and 3.83, respectively. The alloy showed double stage crystallization process. The activation energies for crystallization were found to be 606.6 and 623.1 kJ/mol by Kissinger and Ozawa equations, which indicate the high thermal stability. Crystallization behavior of the alloy was explored by XRD. Mechanical properties like Vicker’s hardness, nanohardness and elastic modulus are found to be very promising.
Journal: Journal of Non-Crystalline Solids - Volume 354, Issues 52–54, 15 December 2008, Pages 5363–5367