Strain Rate Dependent Deformation and Fracture of Titanium Alloy Cylinders UnderExplosive Loading Conditions

摘要

The microstructure of titanium alloy fragments has been examined usingconventional metallographic techniques following explosive loading of Ti6A14V alloy right cylinders filled with Composition B explosive. The main microstructural change in the fragments was the formation of adiabatic shear bands, however there appeared to be very few other changes such as phase transformations or twinning within grains. Generally the microstructure was undeformed except for those regions adjacent to the inner cylinder wall/explosive interface. Results from Vickers micro and macro hardness testing indicated