Structure and Functional Properties of Ti-Ni-Based Shape Memory Alloys Subjected to Severe Plastic Deformation

  1. Prof. Dr. Michael Zehetbauer4 and
  2. Prof. Ruslan Z. Valiev5
  1. I.Yu. Khmelevskaya1,
  2. I.B. Trubitsyna1,
  3. S.D. Prokoshkin1,
  4. S.V. Dobatkin1,2,
  5. V.V. Stolyarov3 and
  6. E.A. Prokofjev3

Published Online: 28 JAN 2005

DOI: 10.1002/3527602461.ch3j

Nanomaterials by Severe Plastic Deformation

Nanomaterials by Severe Plastic Deformation

How to Cite

Khmelevskaya, I.Yu., Trubitsyna, I.B., Prokoshkin, S.D., Dobatkin, S.V., Stolyarov, V.V. and Prokofjev, E.A. (2004) Structure and Functional Properties of Ti-Ni-Based Shape Memory Alloys Subjected to Severe Plastic Deformation, in Nanomaterials by Severe Plastic Deformation (eds M. Zehetbauer and R. Z. Valiev), Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, FRG. doi: 10.1002/3527602461.ch3j

Editor Information

  1. 4

    Institut für Materialphysik, Universität Wien, Boltzmanngasse 5, 1090 Wien, Austria

  2. 5

    Institute of Physics of Advanced Materials, Ufa State Aviation Technical University, 12 K. Marks Str., Ufa, 450 000, Russia

Author Information

  1. 1

    Moscow Steel and Alloys Institute, Moscow, Russia

  2. 2

    Baikov Institute of Metallurgy and Material Science, Russian Academy of Science, Moscow, Russia

  3. 3

    Ufa State Aviation Technical University, Ufa, Russia

Publication History

  1. Published Online: 28 JAN 2005
  2. Published Print: 25 FEB 2004

ISBN Information

Print ISBN: 9783527306596

Online ISBN: 9783527602469

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Keywords:

  • severe plastic deformation;
  • structure;
  • functional properties;
  • Ti-Ni-based shape memory alloys;
  • equal-channel angular pressing (ECAP);
  • high-pressure torsion (HPT)

Summary

The possibilities to regulate the functional properties of shape memory alloys by means of thermomechanical treatment can be enlarged by using a nanocrystalline structure formed under conditions of severe plastic deformation. For practical purposes, it is important to obtain nano- or submicrocrystalline structures [1–3] in rather large samples. In various alloys this is achieved with the method of equal-channel angular pressing (ECAP). Hence, it was interesting to apply this method to titanium-nickel-based shape memory alloys. In addition, structure formation and its dependence on strain and pressure under conditions of high-pressure torsion (HPT) was studied.