Nanocrystallization Of Al88ni10nd2 Alloy By Mechanical Alloying
GAZI UNIVERSITY JOURNAL OF SCIENCE(2019)
摘要
In the present study, mixtures of Al, Ni and Nd elemental powders with compound percentage of Al88Ni10Nd2 were alloyed by mechanical alloying system for times up 110 h yields nanocrystalline products. The mechanically alloyed powders' structural changes and thermal behaviour of different stages of milling were characterized by X-ray diffraction (XRD), differential scanning calorimetry (DSC) and scanning electron microscopy (SEM). The SEM, XRD and DSC results demonstrated that solid state reaction occurred during mechanical alloying and nano-intermetallic compounds of the Al88Ni10Nd2 powders could be obtained. Microstructures of the Al88Ni10Nd2 mechanically alloyed powders were determined to show the formation of fine nanoparticles having a size of touching 10-20 nm. However, no amorphous phase was obtained in Al88Ni10Nd2 powders after milled for times up 110 h.
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关键词
Al-Ni-Nd Alloy, Mechanical Alloying, Nanocrystals, Phase Transitions
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