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The Effects of Elevated Temperature Deformation on Nanocrystalline Titanium-Aluminum

Published online by Cambridge University Press:  15 February 2011

Lisa S. Kim ,
Thomas Klassen ,
Carl J. Altstetter  and
Robert S. Averback
Lisa S. Kim
Affiliation:
University of Illinois, Department of Materials Science and Engineering, Urbana, IL 61801.
Thomas Klassen
Affiliation:
University of Illinois, Department of Materials Science and Engineering, Urbana, IL 61801.
Carl J. Altstetter
Affiliation:
University of Illinois, Department of Materials Science and Engineering, Urbana, IL 61801.
Robert S. Averback
Affiliation:
University of Illinois, Department of Materials Science and Engineering, Urbana, IL 61801.
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Abstract

Nanocrystalline titanium aluminum powder, of composition Ti-48Al, was synthesized using a Fritsch planetary ball mill with a grain size of approximately 10nm. The powder was compacted into cylindrical specimens with a relative density of 79% and subjected to uniaxial compressive loading at 600°C in a mechanical testing machine. From these results, the deformation of nanocrystalline titanium aluminum is examined with relation to the applied load and the resulting grain structure. The results suggest a grain refining mechanism occurring during the deformation process.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 400: Symposium E – Metastable Metal-Based Phases and Microstructures , 1995 , 275
Copyright
Copyright © Materials Research Society 1996

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