materials-science-crystallography-2018-tracks

Page 36

Notes:

Research & Reviews: Journal of Material Sciences | ISSN: 2321-6212 | Volulme 6

November 07-08, 2018 | Atlanta, USA

Materials Science and Engineering

International Conference and Exhibition on

Applied Crystallography

International Conference on

Properties of mechanically alloyed Fe-Al-Si alloys compacted by spark plasma sintering

Filip Prusa, Jakub Sestak, Oceane Alicia Gillet

and

Slawomir Cygan

University of Chemistry and Technology Prague, Czech Republic

he Fe-Al-Si alloys are of interest due to their excellent properties including high hardness, strength, wear resistance

and resistance against high-temperature oxidation. In many cases, the properties of such alloys are comparable or even

outperforms the stainless steels or nickel super alloys. Since the chromium can be again considered as a critical raw material

which shortage might influence a wide range of possible applications, the Fe-Al-Si-based alloys can be utilized as a viable

substitution. The Fe

(wt. %) alloys were prepared by mechanical alloying (MA) and compacted by spark plasma

sintering (SPS) technique. The influence of either the conditions of MA and consequential compaction via SPS on the resulting

microstructure, phase composition and mechanical properties was evaluated. For the mechanical alloying, the amount powder

batch 5 or 20 g was tested in relation to the kinetics of phase’s formation as well onto the overall character of microstructure

and mechanical properties. The compaction via SPS combined pre-loading prior to reaching compaction temperature and vice

versa while current flow characteristic variations were also tested. Moreover, the high-temperature high-pressure compaction

(HTHP) done at several orders of magnitude higher pressures of approximately 6 GPa was also tested. Based on the results,

the proper conditions for mechanical alloying and consequential compaction were chosen to yield maxima of the materials.

Biography

Filip Prusa has completed his PhD at the age of 30 years from University of Chemistry and Technology Prague. He is working at the Department of Metals and

Corrosion Engineering as the assistant professor. He has published 64 papers in reputed journals and conference proceedings and has been serving as a reviewer

for several journals.

Filip.Prusa@vscht.cz

Filip Prusa et al., Res. Rev. J Mat. Sci. 2018, Volume 6

DOI: 10.4172/2321-6212-C8-035