Synthesis, characterization and mechanical properties of nanocrystalline NiAl

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Nanocrystalline NiAl was produced from pre-cast alloys using an electron beam inert gas condensation system. In-situ compaction was carried out at 100-300 C under vacuum conditions. Energy dispersive spectroscopy was used to determine chemical composition and homogeneity. Average grain sizes in the range 4-10 nm were found from TEM dark field analyses. A compression-cage fixture was designed to perform disk bend tests. These tests revealed substantial room temperature ductility in nanocrystalline NiAl, while coarse grained NiAl showed no measurable room temperature ductility.

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8 p.

Creation Information

Choudry, M.; Eastman, J.A.; DiMelfi, R.J. & Dollar, M. November 1, 1996.

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  • Choudry, M. Illinois Inst. of Tech., Chicago, IL (United States). Dept. of Mechanical, Materials and Aerospace Engineering
  • Eastman, J.A.
  • DiMelfi, R.J. Argonne National Lab., IL (United States)
  • Dollar, M. Illinois Inst. of Tech., Chicago, IL (United States). Dept. of Mechanical, Materials and Aerospace Engineering

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Description

Nanocrystalline NiAl was produced from pre-cast alloys using an electron beam inert gas condensation system. In-situ compaction was carried out at 100-300 C under vacuum conditions. Energy dispersive spectroscopy was used to determine chemical composition and homogeneity. Average grain sizes in the range 4-10 nm were found from TEM dark field analyses. A compression-cage fixture was designed to perform disk bend tests. These tests revealed substantial room temperature ductility in nanocrystalline NiAl, while coarse grained NiAl showed no measurable room temperature ductility.

Physical Description

8 p.

Notes

OSTI as DE97001967

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  • 1996 Fall meeting of the Materials Research Society (MRS), Boston, MA (United States), 2-6 Dec 1996

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  • Other: DE97001967
  • Report No.: ANL/MSD/CP--91826
  • Report No.: CONF-961202--32
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 446025
  • Archival Resource Key: ark:/67531/metadc684624

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • November 1, 1996

Added to The UNT Digital Library

  • July 25, 2015, 2:21 a.m.

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  • June 23, 2016, 12:23 p.m.

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Choudry, M.; Eastman, J.A.; DiMelfi, R.J. & Dollar, M. Synthesis, characterization and mechanical properties of nanocrystalline NiAl, article, November 1, 1996; Illinois. (digital.library.unt.edu/ark:/67531/metadc684624/: accessed December 11, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.