The Effect of Impact on the TiAl Alloy TNBV3B Produced on Three Different Processing Routes
The impact behaviour of the TiAl alloy TNBV3B produced on three different processing routes - cast, forged (with a relatively small degree of deformation) and extruded - has been studied making use of ballistic tests. The damage evolution due to centre and edge impacts on flat and airfoil-like specimens has been investigated with a focus on the influence of the microstructure. Apart from the influence of material properties, the impact location showed a strong effect on the damage evolution. The extension of impact cracks in the interior of the specimens has been studied making use of heat tinting experiments and computer tomography analyses.
T. Chandra, N. Wanderka, W. Reimers , M. Ionescu
S. Gebhard et al., "The Effect of Impact on the TiAl Alloy TNBV3B Produced on Three Different Processing Routes", Materials Science Forum, Vols. 638-642, pp. 1312-1317, 2010