Effect Of Different Mechanical Milling Processes On Morphology And Microstructural Changes Of Nano And Micron Al-Powders

In this research, effect of the various mechanical milling process on morphology and microstructural changes of nano and micron Al-powders was studied. The milling of Al-powders was performed by both high energy and low energy ball milling process. The influence of milling (pulverizing) energy on th...

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Bibliographic Details
Published in:Archives of metallurgy and materials 2015-06, Vol.60 (2), p.1235-1239
Main Authors: Kim, H.-S., Madavali, B., Eom, T.-J., Kim, C.-M., Koo, J.-M., Lee, T.-H., Hong, S.-J.
Format: Article
Language:English
Subjects:
Al-alloys
Aluminum composites
Ball milling
Cold
Deformation
Deformation effects
Energy
Grinding (comminution)
High-energy ball milling
Lattice parameters
Low energy ball milling
Mechanical milling
Morphology
Nanoparticles
Plastic deformation
Powder metallurgy
Process controls
Rolling mills
Scanning electron microscopy
Stainless steel
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Summary:In this research, effect of the various mechanical milling process on morphology and microstructural changes of nano and micron Al-powders was studied. The milling of Al-powders was performed by both high energy and low energy ball milling process. The influence of milling (pulverizing) energy on the structural changes of Al-powders was studied. Al-nanoparticles were agglomerated during the MA and its size was increased with increasing milling while micron Al-powder gets flattened shape during high energy ball milling due to severe plastic deformation. Meanwhile, structural evolution during high energy ball milling of the nano powder occurred faster than that of the micron powder. A slight shift in the position of X-ray diffraction peaks was observed in nano Al-powders but it was un-altered in macro Al-powders. The variation in lattice parameters was observed only for nano Al powders during the high energy ball milling due to lattice distortion.
ISSN:2300-1909
1733-3490
2300-1909
DOI:10.1515/amm-2015-0105