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Mechanical Alloying of Fe-Nb-N with Different Ball to Powder Weight Ratio for the Formation of Fe-NbC Composite

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Abstract:

Milling process through mechanical alloying method was performed on a powder mixture of Fe-80.11 wt%, Nb-17.62 wt% and C-2.26 wt% to produce Fe-NbC composite by in situ reaction. Ball to powder weight ratio parameter was selected since formation of phase and microstructure characteristics of this composite were expected to depend on ball collision event during milling. The as-milled and sintered Fe-NbC was characterized by X-ray diffraction (XRD) and Scanning Electron Microscopic (SEM). We found that formation of Fe-NbC by in situ required mechanical alloying of the mixture using 10:1 of ball to powder weight ratio to achieve small crystallite size and more homogeneous of NbC phase.

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Periodical:

Advanced Materials Research (Volume 620)

Pages:

94-98

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.620.94

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Online since:

December 2012

Authors:

Siti Zalifah Md Rasib, Zuhailawati Hussain

Keywords:

Ball to Powder Weight Ratio, Mechanical Alloying, NbC Phase

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