Chemical short-range structure of (Ti0.76Ni0.24)100−xVx amorphous alloys

✍ Scribed by T. Fukunaga; K. Okasaka; T. Koyano; U. Mizutani

• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 175 KB
• Volume: 213-214
• Category: Article
• ISSN: 0921-4526
• DOI: 10.1016/0921-4526(95)00199-j

✦ Synopsis

The chemical short-range order in a ternary amorphous alloy system can be extracted from the neutron diffraction data, provided that the average neutron scattering amplitude (b) can be reduced to zero. In the present experiment, the (Tio.76Nio.24) 100-xVx ternary system is designed by taking an advantage of the fact that the values of (b) for Tio.v6Nio.24 and V are almost zero. Amorphous single phase samples were obtained over the range 0 ~< x ~< 40 by mechanical alloying. The Warren chemical short-range order parameter can be deduced from the radial concentration function.

From a comparison of it with a perfectly chemical short-range order parameter given by -CNi/CTj. V we revealed further that an increase in V concentration in the amorphous matrix Tio.76Nio.24 promotes the chemical short-range order between Ni and X = Ti or V atoms.