Dynamic Compression Properties of Low-cost Ti-6AI-4V Plates

摘要

Ti-6A1-4V ingot with rectangle cross-section was directly manufactured by a single electron beam cold hearth melting (EBCHM) process, in which 65 wt.% recycled titanium scraps was used. The dynamic stress-strain behavior of the low-cost Ti-6A1-4V plates after heat treatment was investigated by Split Hopkinson Pressure Bar system at the strain rates of 2000 s~(-1)~3000 s~(-1). The results showed that the plates with homogeneous microstructure could be obtained after two-heats hot rolled. The dynamic compression properties of low-cost Ti-6A1-4V plates in three different thicknesses were in the same level, which is comparable with that of commercial T1-6A1-4V plates.