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Nanocrystalline Phases During Mechanically Activated Processing of an Iron (Fe) Aluminum (40 at% Al) Alloy
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2014 (English)In: Materials and Manufacturing Processes, ISSN 1042-6914, E-ISSN 1532-2475, Vol. 29, no 7, 864-869 p.Article in journal (Refereed) Published
Abstract [en]

Influence of processing conditions on in situ generation of nanocrystalline Fe(3)AlCx and Fe-Al phases during mechanically activated annealing and sintering of Fe-40 at% Al alloy was evaluated. Fe(3)AlCx, Fe3Al and ordered FeAl phases evolved even at a low temperature of 400 degrees C. The presence of carbide phase was attributed to the free carbon originating from the organic process control agent while its formation at low temperature was correlated to fast diffusion of C in the lattice assisted by the nanocrystalline structure coupled with the presence of thermal vacancies in the Fe-40 at% Al alloy. The as-sintered composite showed improved mechanical properties.

Place, publisher, year, edition, pages
2014. Vol. 29, no 7, 864-869 p.
Keyword [en]
Intermetallics, Iron-aluminide, Milling, Nanocomposite, Nanocrystalline, Sintering, C SYSTEM, STRUCTURAL EVOLUTION, THERMAL VACANCIES, AT.PERCENT AL, MICROSTRUCTURE, BEHAVIOR, CARBON, Engineering, Manufacturing, Materials Science, Multidisciplinary
URN: urn:nbn:se:hv:diva-8413OAI: diva2:860144
Available from: 2015-10-10 Created: 2015-10-08 Last updated: 2015-10-10Bibliographically approved

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Joshi, S. V.
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