The growing use of light metal alloys in industries such as aerospace is driving research into surface engineering technologies to enhance their properties for the desired end use.  For materials, such as titanium alloys, the native bulk properties particularly the strength to weight ratio is often ideally suited for applications where weight reduction is essential; however, the surface characteristics of these materials often leads to very poor tribological response. The development and study of surface treatments have proved essential in order to allow expanded use of these materials particularly under high contact loads which would otherwise quickly lead to galling and part failure. At DMME we have specialised in the development of duplex-hybrid treatment which offers excellent load-bearing capacity, and optimal ratio of hardness to the elastic modulus, primarily using diffusion processes coupled with P/CVD.