کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1618436 | 1005705 | 2011 | 4 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Fabrication of Ti–Cu–Ni–Al amorphous alloys by mechanical alloying and mechanical milling Fabrication of Ti–Cu–Ni–Al amorphous alloys by mechanical alloying and mechanical milling](/preview/png/1618436.png)
Ti-based amorphous alloy powders were synthesized by the mechanical alloying (MA) of pure elements and the mechanical milling (MM) of intermetallic compounds. The amorphous alloy powders were examined by X-ray diffraction (XRD), differential scanning calorimetry (DSC), and scanning electron microscopy (SEM). Scanning electron micrographs revealed that the vein morphology of these alloy powders shows deformation during the milling. The energy-dispersive X-ray spectral maps confirm that each constituent is uniformly dispersed, including Fe and Cr. The XRD and DSC results showed that the milling time required for amorphization for the MA of pure elements was longer than that of the MM for intermetallic compounds. The activation energy and crystallization temperature of the MA powder are different from those of the MM powder.
Research highlights
► Ti-based amorphous alloys are produced by the mechanical alloying and by the mechanical milling.
► The amorphization by the mechanical alloying is slower than that by the mechanical milling.
► Activation energy and temperature of crystallization of both alloys are different.
Journal: Journal of Alloys and Compounds - Volume 509, Issue 12, 24 March 2011, Pages 4386–4389