STEADY-STATE CREEP-BEHAVIOR OF TIC PARTICULATE-REINFORCED TI-6A1-4V COMPOSITE

The deformation behaviour of a 15 vol%TiC particulate reinforced Ti-6A l-4V composite was investigated under monotonic loading at elevated te mperatures. The mechanical behaviour under compressive and tensile loa ding was found to be similar. There is a significant improvement in st rength and creep resistance of Ti-6Al-4V on reinforcement with TiC par ticulates. The deformation behaviour of the Ti-composite was found to be qualitatively similar to the matrix alloy Ti-6Al-4V. It has been sh ows that the addition of TiC particulates refines the microstructure o f Ti-6Al-3V alloy significantly and is responsible for the improved pr operties of the composite. (C) 1998 Published by Elsevier Science S.A. All rights reserved.