Repair of γ-TiAl Alloys by Diffusion-Brazing Technique

  1. Dr. P. J. Winkler
  1. S. Tarral1,
  2. Y. Bienvenu1,
  3. J.P. Ferté2,
  4. J.F. Clément2,
  5. J.P. Henrion2 and
  6. C. Colin1

Published Online: 23 DEC 2005

DOI: 10.1002/3527606025.ch41

Materials for Transportation Technology, Volume 1

Materials for Transportation Technology, Volume 1

How to Cite

Tarral, S., Bienvenu, Y., Ferté, J.P., Clément, J.F., Henrion, J.P. and Colin, C. (2000) Repair of γ-TiAl Alloys by Diffusion-Brazing Technique, in Materials for Transportation Technology, Volume 1 (ed P. J. Winkler), Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, FRG. doi: 10.1002/3527606025.ch41

Editor Information

  1. DaimlerChrysler AG, Forschung und Technologie, Postfach 800 465, 81663 München, Germany; Tel.: 089–607 22393; Fax: 089–607 28627

Author Information

  1. 1

    Centre des Materiaux ENSMP Evry, France

  2. 2

    SNECMA Evry, France

Publication History

  1. Published Online: 23 DEC 2005
  2. Published Print: 20 APR 2000

Book Series:

  1. EUROMAT 99

ISBN Information

Print ISBN: 9783527301249

Online ISBN: 9783527606023

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Keywords:

  • transportation technology;
  • materials;
  • aerospace applications;
  • repair of γ-TiAl alloys;
  • diffusion-brazing technique

Summary

SNECMA who developed and patented in 1981 a diffusion-brazing method called RBD (Rechargement-Brasage-Diffusion) in order to repair fine cracks on turbine parts in Nickel-based-superalloy, has decided to develop a similar technique for future γ-TiAl parts. Therefore, this paper deals with the development of the RBD process for the joining of Ti-48Al- 2Nb-2(Cr, Mn) (at%) with a pre-sintered powder mixture which was used as interlayer. Sintering and brazing conditions are being optimized to provide good mechanical properties compared with massive parts.