Microstructure and wear properties of laser-deposited functionally graded Inconel 690 reinforced with TiC

► Laser deposition was used to create a functionally graded TiC/Inconel 690 composite coating. ► The gradient coating increased the surface hardness by an average of 145% over the base Inconel 690 material. ► Microstructural analysis showed presence of TiC particles over 30% introduced of a finely dispersed TiC phase. ► Wear results showed an average of 42% increase in volume loss on the disk with 40 vol.% TiC.