Microstructures of Annealed Ti50Ni25Cu25 Melt-Spun Ribbons

  1. Prof. T. W. Clyne and
  2. F. Simancik
  1. H. Rösner1,
  2. A.V. Shelyakov2,
  3. A.M. Glezer3 and
  4. P. Schloßmacher1

Published Online: 21 DEC 2005

DOI: 10.1002/3527606203.ch25

Metal Matrix Composites and Metallic Foams, Volume 5

Metal Matrix Composites and Metallic Foams, Volume 5

How to Cite

Rösner, H., Shelyakov, A.V., Glezer, A.M. and Schloßmacher, P. (2000) Microstructures of Annealed Ti50Ni25Cu25 Melt-Spun Ribbons, 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.ch25

Editor Information

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

Author Information

  1. 1

    Forschungszentum Karlsruhe GmbH, Institut für Materialforschung I, Postfach 3640, D-76021 Karlsruhe, Germany

  2. 2

    Moscow Engineering Physics Institute, Department of Solid State Physics Kashirskoe shosse 31, 115409 Moscow, Russia

  3. 3

    Institute of Physical Metallurgy, 107005 Moscow, Russia

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:

  • Ti50Ni25Cu25 melt-spun ribbons, microstructures

Summary

Amorphous Ti50Ni25Cu25 (at.%) melt-spun ribbons were manufactured my the melt-spinning technique. Various amorphous-crystalline microstructure up to complete crystallization were established by heat treatment at 683 K. The arising microstructures were characterized. Use of transmission electron microscopy (TEM), scanning differential calorimetry (DSC) and optical metallography has been made. The crystallization occurred in form of spherical martensitic grains surrounded by amorphous matrix. Thin plate-like precipitates were formed inside of the grains leading to embrittlement. A change from single-stage martensitic transformation for shorter annealing times towards a two-stage transformation behavior concerning long-term heat treatments has been found in the DSC-curves. Analytical TEM studies revealed that the formation of subnanometric plate-like precipitates on {100}B2 planes of the parent B2 phase governed the two-stage transformation behavior