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Mechanical Properties of NiTi-TiC Shape-Memory Composites

Published online by Cambridge University Press:  10 February 2011

D. C. Dunand ,
K. L. Fukami-Ushiro ,
D. Mari ,
J. A. Roberts  and
M. A. Bourke
D. C. Dunand
Affiliation:
Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139
K. L. Fukami-Ushiro
Affiliation:
Raychem Corp., Menlo Park CA 94025
D. Mari
Affiliation:
ACME, 1015 Lausanne, Switzerland
J. A. Roberts
Affiliation:
LANSCE, Los Alamos National Laboratory, Los Alamos, NM 87545.
M. A. Bourke
Affiliation:
LANSCE, Los Alamos National Laboratory, Los Alamos, NM 87545.
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Abstract

This paper reviews recent work on the mechanical behavior of martensitic NiTi composites reinforced with 10–20 vol.% TiC particulates. The behavior of the composites is compared to that of unreinforced NiTi, so as to elucidate the effect of mismatch due to matrix transformation, thermal expansion, twinning or slip, in the presence of purely elastic particles. The twinning and subsequent thermal recovery of deformed composites, measured both macroscopically (by compressive testing and by dilatometry) and microscopically (by neutron diffraction), are summarized.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 459: Symposium Y – Materials for Smart Systems II , 1996 , 131
Copyright
Copyright © Materials Research Society 1997

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References

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