J. Cirne, R. Dormeval, et al.
J. Phys. IV France 134 (2006) 1091-1096
Effect of heat treatment conditions on the dynamic strength and failure behavior of titanium alloy Ti-6Al-4VL. 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 ( ) 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 -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