Microstructure of cast titanium alloys

Due to the significant raw-material costs, the near net-shape manufacture of titanium alloy components is an attractive proposition. Processing through melting and solidification allows manipulation of the bulk composition and control of the microstructure. This research examines the effect of commonly used alloying additions on the as-cast microstructure of titanium alloys. In particular, the effects of incremental additions of aluminium and vanadium are used as a basis for explaining the as-cast microstructure of the most commonly used titanium-based engineering alloy, Ti6Al4V.