TiAl Automotive Valves – Fabrication and Properties

  1. Dr. P. J. Winkler
  1. S. Knippscheer1,
  2. G. Frommeyer1,
  3. P. J. Baur2,
  4. R. Joos2,
  5. M. Lohmann3,
  6. O. Berg3,
  7. P. J. Kestler4,
  8. N. Eberhardt4,
  9. V. Güther5 and
  10. A. Otto5

Published Online: 23 DEC 2005

DOI: 10.1002/3527606025.ch19

Materials for Transportation Technology, Volume 1

Materials for Transportation Technology, Volume 1

How to Cite

Knippscheer, S., Frommeyer, G., Baur, P. J., Joos, R., Lohmann, M., Berg, O., Kestler, P. J., Eberhardt, N., Güther, V. and Otto, A. (2000) TiAl Automotive Valves – Fabrication and Properties, in Materials for Transportation Technology, Volume 1 (ed P. J. Winkler), Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, FRG. doi: 10.1002/3527606025.ch19

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

    Max-Planck-Institut für Eisenforschung GmbH, Düsseldorf, Germany

  2. 2

    DaimlerChrysler AG, Ulm, Germany

  3. 3

    Mahle Motorventile GmbH, Bad Homburg, Germany

  4. 4

    Plansee AG, Reutte/Tirol, Austria

  5. 5

    GfE Metalle und Materialien GmbH, Nürnberg, Germany

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;
  • automotive applications;
  • TiAl automotive valves;
  • fabrication;
  • properties

Summary

In a joint research project, financially supported by the German Federal Ministry of Education and Research (BMBF), a fabrication process based on thermomechanical processing for lightweight valves made out of a γ-TiAl base alloy with additions of molybdenum and silicon has been developed by DaimlerChrysler AG, Mahle Motorventile GmbH (formerly EuroVal), Plansee AG, GfE Metalle und Materialien GmbH and Max-Planck-Institut für Eisenforschung GmbH. Near-net shape TiAl(Mo,Si) valve blanks have been successfully produced at industrial production devices by thermomechanical processing – extrusion, bulging and die forging. These valves exhibit a pronounced homogeneous and fine-grained microstructure without any cavities which are present in as-cast TiAl components. Forged automotive valves made out of the TiAl(Mo,Si) alloy have been successfully tested in engine performance tests. The production process and the properties of thermomechanically processed TiAl valves will be outlined and discussed in the present paper.