J. Phys. IV France
Volume 134, August 2006
EURODYMAT 2006 - 8th International Conference on Mechanical and Physical Behaviour of Materials under Dynamic Loading
Page(s) 1091 - 1096
Publié en ligne 26 juillet 2006
EURODYMAT 2006 - 8th International Conference on Mehanical and Physical Behaviour of Materials under Dynamic Loading
J. Cirne, R. Dormeval, et al.
J. Phys. IV France 134 (2006) 1091-1096

DOI: 10.1051/jp4:2006134167

Effect of heat treatment conditions on the dynamic strength and failure behavior of titanium alloy Ti-6Al-4V

L. Krüger1, K. Sommer2, T. Halle2, M. Hockauf0 and L.W. Meyer2

1  TU Bergakademie Freiberg, Institut für Werkstofftechnik, Gustav-Zeuner-Straße 5, 09599 Freiberg, Germany
2  Chemnitz University of Technology, Werkstoffe des Maschinenbaus, 09107 Chemnitz, Germany

Published online: 26 July 2006

The effect of heat treatment conditions on high rate mechanical properties of the ( $\alpha +\beta$) titanium alloy Ti-6Al-4V was investigated. Dependent on the solution annealing temperature, cooling rate and further annealing the strength and failure properties can be varied in a wide range. Microstructures obtained by annealing below the $\beta$-transus followed by furnace cooling show balanced properties of high strength, deformability, and therefore the highest energy consumption under dynamic compressive loading, but the lowest hardness values. Instrumented impact tests on Charpy U-notch specimens reveal evidence for a less brittle behaviour combined with the highest absorbed energy for furnace cooled conditions, only.

© EDP Sciences 2006

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