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S. I. MUDRYY and Yu. O. KULYK
«Investigation of Al Nanocrystals Growth Kinetics During Crystallization of Al87Ni8Y5 Amorphous Alloy»
PACS numbers: 61.05.cp, 61.43.-j, 61.46.Hk, 81.07.Bc, 81.16.Rf, 81.30.Fb, 82.60.Qr
The crystallization kinetics of amorphous Al87Ni8Y5 alloy is studied by X-ray high-temperature diffraction method. As shown, the Al nanocrystals with sizes changing from 6 to 14 nm precipitate from amorphous phase during isothermal annealing at 453 K. Analysis of isothermal crystallization kinetics is performed using the Johnson–Mehl–Avrami equation. The method of diffraction-peak time-dependence analysis is proposed to determine the kinetics of phase transformation during continuous linear heating of amorphous alloys.