An overview of results after heat treatments of the SLM materialis given in Table 2. From these results, treatment two (2 h at850 C, followed by furnace cooling) and seven (1 h at 940 C, followed by air cooling and tempering for 2 h at 650 C and air cooling) seem to produce the best overall results. Both of thesetreatments reach temperatures relatively high in the a + b zoneand maintain some a at high temperature. A previous study onincreasing the ductility of Ti6Al4V produced by SLM [5] producedthe same mechanical properties as were obtained after treatmenttwo, but did not state the heat treatment parameters that wereused. The microstructure however differed to some extent, withsome globular a being reported.