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Search: WFRF:(Joardar V.) > (2014)

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1.
  • Archana, M. S., et al. (author)
  • Nanocrystalline Phases During Mechanically Activated Processing of an Iron (Fe) Aluminum (40 at% Al) Alloy
  • 2014
  • In: Materials and Manufacturing Processes. - 1042-6914 .- 1532-2475. ; 29:7, s. 864-869
  • Journal article (peer-reviewed)abstract
    • 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.
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2.
  • Archana, M. S., et al. (author)
  • Rapid consolidation of FeAl-Fe3AlCx ultrafine composites by mechanically activated field-assisted technique
  • 2014
  • In: Materials Science & Engineering. - 0921-5093 .- 1873-4936. ; 611, s. 298-305
  • Journal article (peer-reviewed)abstract
    • Rapid sintering of FeAl based ultrafine composites by a mechanically activated field-assisted process was evaluated. The influence of applied load and isothermal holding time on the as-sintered microstructure and mechanical properties was investigated. Hardness of the nanocomposite was determined by micro- and nano-indentation techniques, while the grain size was ascertained from electron backscatter diffraction and image analysis of scanning electron micrographs. A higher applied load as well as the isothermal holding time led to better dispersion of the in situ grown Fe3AlCx carbide particles in FeAl matrix. Significant improvement in the hardness and marginal rise in elastic constant were also observed in the fast sintered ultrafine composites when compared to previous reports. The increase in hardness was attributed to the presence of a carbide phase and fine-grained microstructure. (C) 2014 Elsevier B.V. All rights reserved.
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  • Result 1-2 of 2
Type of publication
journal article (2)
Type of content
peer-reviewed (2)
Author/Editor
Archana, M. S. (2)
Srikanth, Vvss (2)
Joardar, J. (2)
Gundakaram, R. C. (2)
Joshi, S. V. (2)
Ramakrishna, M. (1)
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Rao, Y. S. (1)
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University
University West (2)
Language
English (2)
Year
2014 (2)Undo refine

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