Degradation of the Shape Memory Effect

  1. Prof. T. W. Clyne and
  2. F. Simancik
  1. Heinrich Scherngell,
  2. Andreas G. Mayer and
  3. Albert C. Kneissl

Published Online: 21 DEC 2005

DOI: 10.1002/3527606203.ch40

Metal Matrix Composites and Metallic Foams, Volume 5

Metal Matrix Composites and Metallic Foams, Volume 5

How to Cite

Scherngell, H., Mayer, A. G. and Kneissl, A. C. (2000) Degradation of the Shape Memory Effect, in Metal Matrix Composites and Metallic Foams, Volume 5 (eds T. W. Clyne and F. Simancik), Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, FRG. doi: 10.1002/3527606203.ch40

Editor Information

  1. Department of Materials Science and Metallurgy, Cambridge University, Pembroke Street, Cambridge CB2 3QZ, U.K.

Author Information

  1. Institute of Physical Metallurgy and Materials Testing, University of Leoben, A-8700 Leoben, Austria

Publication History

  1. Published Online: 21 DEC 2005
  2. Published Print: 20 APR 2000

Book Series:

  1. EUROMAT 99

ISBN Information

Print ISBN: 9783527301263

Online ISBN: 9783527606207

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Keywords:

  • degradation of the shape memory effect

Summary

For practical use of the TWSME the stability of the induced effect is a major concern. The shape change of a trained shape memory element has usually to be carried out between tight tolerances. Previous investigations on binary NiTi alloys revealed, that the degradation of the effect shows a dependency on the preliminary heat-treatment. This was ascribed to a sensitivity of the degradation mechanisms with respect to the intensity of the internal stress field. This paper reports the results of an attempt to introduce W-dispersoids in a binary NiTi alloy in order to increase the internal stress field and thus to obtain a more stable TWSME.