Abstract
The light weight of Ti6Al4V as a titanium alloy is been amongst the properties that have been
tailed for the aerospace and other industrial applications. To modify the properties of this alloy,
Cu has been added to host an antimicrobial effect in the revised alloy for marine application.
The LMD process on the Ti6Al4V alloy and Cu was been investigated for surface modification
in order to combat the problem of biofouling in the marine industry. The investigations focused
on the microstructural observations, micro-hardness measurements and dry sliding wear in the
presence of 3 and 5 weight percents of Cu. The microstructure results showed that
Widmanstätten microstructures were formed in all the samples and lose their robustness
towards the fusion zone as a result of the transition of heat sink towards the substrate. The
microhardness values of Ti6Al4V-3Cu and Ti6Al4V-5Cu alloys were greatly improved to
547±16 VHN0.5 and 519±54 VHN0.5 respectively. In addition, the behaviour of wear loss on
the surface of the Ti6Al4V-Cu alloys exhibited great improvement as compared with the parent...