Title of article
Crystallization behavior of amorphous Al84Y9Ni5Co2 alloy
Author/Authors
Bassim، نويسنده , , N. and Kiminami، نويسنده , , C.S. and Kaufman، نويسنده , , César M.J. de Oliveira، نويسنده , , M.F. and Perdigao، نويسنده , , M.N.R.V. and Botta Filho، نويسنده , , W.J.، نويسنده ,
Pages
6
From page
332
To page
337
Abstract
The crystallization behavior and microstructure development upon annealing amorphous Al84Y9Ni5Co2 melt-spun ribbons have been investigated by a combination of differential scanning calorimetry (DSC), transmission electron microscopy (TEM) and X-ray diffraction (XRD). Crystallization is shown to occur in three stages: (1) primary crystallization of α-Al; (2) formation of an unknown crystalline phase; (3) formation of Al3Y, Al9Co2 and a phase similar to Al16Ni3Y. The morphology, EDS and diffraction patterns indicated that the two unknown phases, from the second and third stages, are different phases and both are quaternary compounds.
Keywords
Amorphous alloys , Al–Y–Ni–Co alloy , crystallization
Journal title
Astroparticle Physics
Record number
2058145
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