Abstract:

In this study, the Al85Ni5Fe5Nd5 (at.%) alloy was obtained in fine stripes with the fast rigging method and in powder with the mechanical alloy method. The structural characteristics of alloys such as the morphological structure, phase identification, particle size and distribution of particles have been studied using X-ray diffraction (XRD) and scanned electron microscope (SEM). Thermal characteristics such as the crystallization temperatures of the alloys, the activation energy and the phase conversion temperatures have been studied by the differential scan calorometer (DSC). Bands produced by the fast rigging method are in amorphic structure, and dust produced by the mechanical alloy method are in nanocrystal structure. The XRD results showed that after 200 hours of alloy process, the crystal sizes of dust alloys fell below 15 nm and phases such as Al3Ni and Al18Nd3 formed in nanocrystal structure. The activation energy of Amorf alloys is calculated by the Kissinger method. The activation energy for the initial temperature of the first crystallization picin of the Amorf alloy was calculated at 482 kJ/mol. This study has shown that the mechanical alloy method is suitable for the production of rapid solidification of amorphic alloy, nanocrystal alloy.

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