Microstructure and Mechanical Properties of Thermomechanically Processed Ti-25V-15Cr-xAl alloys

  1. Dr. P. J. Winkler
  1. Y. G. Li1,
  2. P. A. Blenkinsop1,
  3. M. H. Loretto1,
  4. D. Rugg2 and
  5. W. Voice2

Published Online: 23 DEC 2005

DOI: 10.1002/3527606025.ch33

Materials for Transportation Technology, Volume 1

Materials for Transportation Technology, Volume 1

How to Cite

Li, Y. G., Blenkinsop, P. A., Loretto, M. H., Rugg, D. and Voice, W. (2000) Microstructure and Mechanical Properties of Thermomechanically Processed Ti-25V-15Cr-xAl alloys, in Materials for Transportation Technology, Volume 1 (ed P. J. Winkler), Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, FRG. doi: 10.1002/3527606025.ch33

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

    IRC in Materials for High Performance Applications, The University of Birmingham, Edgbaston, Birmingham, England

  2. 2

    Rolls-Royce Plc, P.O. Box 31, Derby, DE 24 8BJ, UK

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;
  • thermomechanically processed Ti-25V-15Cr-xAl alloys;
  • microstructure;
  • mechanical properties

Summary

β-titanium alloys of Ti-25V-15Cr-(2-3)Al (wt%) with and without carbon additions were plasma melted, forged or extruded and heat-treated before being tensile tested at room temperature. The microstructures were examined in various conditions using optical microscopy (OM), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Forged samples had heterogeneous banded structure whereas extruded samples showed uniform equiaxed grains in both longitudinal and transverse cross sections. Heat-treatments including solution-treatment and ageing were carried out following thermomechanical processing. α precipitation occurred in samples which were heat-treated at 600–700°C. Significant differences were found between samples with and without carbon additions in terms of grain size and mechanical properties.