Structural Evolution of Mechanically Alloyed Nanocrystalline Al70Fe25Ni5 Intermetallics

Zhang Jing; Qi Zhi Cao; Zheng Liang Li

doi:10.4028/www.scientific.net/AMM.275-277.1751

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 275-277Structural Evolution of Mechanically Alloyed...

Structural Evolution of Mechanically Alloyed Nanocrystalline Al₇₀Fe₂₅Ni₅ Intermetallics

Abstract:

Nanostructured Al-25at.%Fe-5at.%Ni intermetallics were prepared directly by mechanical alloying (MA) in a high-energy planetary ball-mill. The phase transformations and structural changes occurring in the studied material during mechanical alloying were investigated by X-ray diffraction (XRD). Scanning electron microscopy (SEM) was employed to examine the morphology of the powders. Thermal behavior of the milled powders was examined by differential thermal analysis (DTA). The solid solutions of Fe (Al) and Ni (Fe) in the Al70Fe25Ni5 system are observed at the early milling stage. The solid solutions transforms into amorphous and disordered Al (Fe, Ni) phase. The last milling products in the Al70Fe25Ni5 system are Al3Ni2, AlFe3 and AlFe0.23Ni0.77 phases.

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Periodical:

Applied Mechanics and Materials (Volumes 275-277)

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1751-1754

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.275-277.1751

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Online since:

January 2013

Authors:

Zhang Jing, Qi Zhi Cao, Zheng Liang Li

Keywords:

Fealni, Intermetallic, Mechanical Alloying, X-Ray Diffraction (XRD)

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