Abstract
Laser Metal Deposition (LMD) belongs to a class of advanced materials that are manufactured
using additive manufacturing techniques. Titanium alloy (T64) is commonly used for aerospace,
marine, biomedical and automotive components due to its combined amazing properties. Copper
(Cu) is a beta phase stabilizer and its behaviour in the alloy has been studied. This paper focuses
on the influence of scanning speed on the laser deposited titanium alloy and copper composites
(T6450Cu50). Equal weight proportion of T6450Cu50 was deposited on T64 substrate by varying the
scanning speed from 0.5 m/min to 2 m/min while other parameters are kept constant. The
microstructural behaviour and the microhardness measurement have been investigated and
reported. The interaction time between the nozzle and the substrate during laser deposition
determines on the depth and width of the heat affected zone; the melt pool created on the substrate
has also influenced the meld of the participating powders to the substrate. The relationship between
the scanning speed and the deposited area has provided a way of controlling the desired deposit
range during manufacturing or the repair of a component.